Fluke HPMS A30000, HPMS A6000-AF, RPM3 User Manual

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T.O. 33A6-4-30-1

RPM3/HPMS A30000/A 6000-AF

Operation and Maintenance

Manual

NSN 6685-01-470-8667

(2 of 2)

1 August 2000

RPM3/HPMS A30000/ A6000- AF Operation and Mai ntenance Man ual

High pressure liquids and ga ses a re po tentially haza rdous. Energy stored in these liquids and gas es can be released unexpectedly and with extreme force. High pressure systems should be assembled and operated only by p ers o nnel who have b een instructed in prop er s a fety pra ctices.

transmitted in any form or by any means, electronic or mechanical, for any purpose, without the express written permission of DH Instruments, I nc. 4765 East Beaut iful Lane Phoenix AZ 85044-5318 USA.

DH Instruments makes sincere efforts to ensure accuracy and quality of its published materials; however, no

warranty, expressed or implied, is provided. DH Instruments disclaims any responsibility or liability for any direct or indirect damages resulting from t he use of the information in this manual or product s descr ibed in it. M ent ion of any product does not constitute an endorsement by DH Instruments of that product. This manual was originally composed in English and was subsequently translated into other languages. The fidelity of the t ranslation cannot be guaranteed. In case of conflict between the English version and other language versions, t he English version predominates.

DH Instruments, DH, DHI, AutoZ, CalTool, HGC, HPMS, OPG1, PPC, PPC2+, RPM3, SDS (Self Defense System) are trademarks, r egister ed and ot herwise.

LabVIEW is a registered trademar k of Nat ional Inst r um ent s Corpor at ion.

Document No. 550115 000124

Printed in the USA.

RPM3/HPMS A30000/ A6000- AF Operation and Mai ntenance Man ual

AABBLLEE O

TABLE OF CONTENTS ................................................................................i

TABLES.................................................................................................... v

FIGURES ................................................................................................. vi

ABOUT THIS MANUAL ............................................................................. vii

1. INTRODUCTION .................................................................................... 1

1.1 PRODUCT OVERVIEW .......................................................................................................................1

1.2 SPECIFICATIONS...............................................................................................................................2

1.2.1 GENERAL SPECIFICATIONS............................................................................................................................... 2

1.2.2 PRESSURE MEASUREMENT SPECIFICATIONS...............................................................................................2

1.2.2.1 RPT MEASUREMENT SPECIFICATIONS (% FS OF ACTIVE RANGE)............................................3

1.2.2.2 ON-BOARD BAROMETER ...................................................................................................................4

2. INSTALLATION.....................................................................................5

2.1 UNPACKING AND INSPECTION .........................................................................................................5

2.1.1 REM OVING FROM PACKAGING.........................................................................................................................5

2.1.2 INSPECTING CONTENTS.....................................................................................................................................5

2.2 SITE REQUIREMENTS........................................................................................................................6

2.3 INITIAL SETUP ...................................................................................................................................6

2.3.1 PREPARING F OR OPERATION...........................................................................................................................6

2.3.2 RPM3/HPMS FRONT AND REAR PANEL S.........................................................................................................7

2.3.2.1 FRONT PANEL......................................................................................................................................7

2.3.2.2 REAR PANEL........................................................................................................................................8

2.3.3 RPM3 FRONT AND REAR PANELS....................................................................................................................9

2.3.4 POWER CONNECTION.......................................................................................................................................10

2.3.5 FOOT SW ITCH CONNECTION........................................................................................................................... 11

2.3.6 TEST PORT CONNE CTION................................................................................................................................11

2.3.7 SETTING UP FILE SEQUENCES .......................................................................................................................12

2.4 POWER UP AND VERIFICATION .....................................................................................................12

2.4.1 APPLY POWER ...................................................................................................................................................12

2.4.2 CHECK PROPER PRESS URE MEASUREMENT OPERATION.......................................................................12

2.5 SHORT TERM STORAGE.................................................................................................................13

2.6 LONG TERM STORAGE AND SHIPPING .........................................................................................13

2.3.2.3 SIDE VIEW ............................................................................................................................................8

2.3.3.1 FRONT PANEL......................................................................................................................................9

2.3.3.2 REAR PANEL......................................................................................................................................10

2.3.6.1 THE RPM3 ATM PORT.......................................................................................................................11

2.4.2.1 CHECKING A B S OLUTE MODE PRESSURE MEASUREMENT.......................................................12

2.4.2. 2 CHECKIN G GA UGE MODE PRESSURE MEA S UREMENT.............................................................13

OFF

NTTEE

NTTSS

3. OPERATION ....................................................................................... 15

3.1 GENERAL/MANUAL OPERATION....................................................................................................15

3.1.1 KEYPAD LAY OUT AND PROTOCOL................................................................................................................15

3.1.2 MAIN RUN SCREE N............................................................................................................................................16

3.1.3 SOUNDS...............................................................................................................................................................17

3.1.4 SOFT [ON/OFF] KEY...........................................................................................................................................17

3.1.5 PRESSURE READY <*>/NOT READY (<↑

↑> OR <↓↓↓↓>) INDICATION................................................................18

↑↑

RPM3/HPMS A30000/ A6000- AF Operation and Mai ntenance Man ual

3.1.6 MULT IPLE PRESSURE RANGES......................................................................................................................18

3.1.7 AUTOMATE D TEST/CALIBRATION SE QUE NCE S.......................................................................................... 19

3.1.8 HPMS (HIGH PRESSURE MOUNTING SYSTEM)............................................................................................. 20

3.2 DIRECT FUNCTIO N KEYS ................................................................................................................22

3.2.1 DIRECT FUNCTION KEYS SUMMARY.............................................................................................................. 22

3.2.2 [RANGE]...............................................................................................................................................................24

3.2.3 [UNIT] ...................................................................................................................................................................26

3.2.4 [MODE].................................................................................................................................................................27

3.2.5 [UL] (UPPER LIMIT) ............................................................................................................................................ 28

3.2.6 [RES] (RESOLUTION).........................................................................................................................................31

3.2.7 [DISPLAY]............................................................................................................................................................ 33

3.2.8 [HEAD].................................................................................................................................................................41

3.2.9 [SDS] (SELF DEFENSE SYSTEM).....................................................................................................................44

3.2.10 [AUTOZ] ............................................................................................................................................................... 44

3.2.11 [ENTER] RUN TEST SEQUENCE......................................................................................................................49

3.3 [SETUP] MENU KEY.........................................................................................................................54

3.3.1 HEAD....................................................................................................................................................................54

3.3.2 PRESU..................................................................................................................................................................55

3.3.3 READRT (READ RATE)...................................................................................................................................... 56

3.3.4 STAB (STABILI TY)..............................................................................................................................................57

3.3.5 LEAK (LEAK CHECK).........................................................................................................................................59

3.3.6 SEQ....................................................................................................................................................................... 60

3.4 [SPECIAL] MENU KEY......................................................................................................................65

3.4.1 AUTOZ..................................................................................................................................................................66

3.4.2 SDS.......................................................................................................................................................................70

3.4.3 ATM ......................................................................................................................................................................70

3.4.4 REMOTE...............................................................................................................................................................71

3.4.5 RESET..................................................................................................................................................................72

3.4.6 CAL.......................................................................................................................................................................75

3.4.7 INTERN.................................................................................................................................................................75

3.4.8 LEVEL...................................................................................................................................................................78

3.4.9 LOG ......................................................................................................................................................................81

3.1.6.1 RANGES AND IDENTIFICATION....................................................................................................... 19

3.2.5.1 OVER-PRESSURE FUNCT I ON (<PMAX!>)......................................................................................30

3.2.5.2 LO RPT PROTECTION (<!!LO RPT ACTIVE!!> )................................................................................31

3.2.7.1 AVG (AVERAGE) ................................................................................................................................34

3.2.7.2 RATE....................................................................................................................................................36

3.2.7.3 DEV (DEVIATION)...............................................................................................................................36

3.2.7.4 RPT......................................................................................................................................................37

3.2.7.5 HI/LO.................................................................................................................................................... 39

3.2.7.6 FREEZE...............................................................................................................................................39

3.2.7.7 CLEAN.................................................................................................................................................40

3.2.10.1 RUNNING AUTOZ IN GAUGE MEASUREMENT MODE..................................................................44

3.2.10.2 RUNNING AUTOZ IN ABSOLUTE MEASUREMENT MODE............................................................45

3.2.11.1 TEST INITIALIZATION (QUICK SEQUENCE) ...................................................................................51

3.2.11 .2 TEST EXECUTION (QUICK SEQUENCE AND FIL E S E QUENCE )..................................................52

3.3.6.1 SEQUENCE, DA TA.............................................................................................................................61

3.3.6.2 SEQUENCE, FILESEQ .......................................................................................................................62

3.4.1.1 AUTOZ ON/OFF..................................................................................................................................69

3.4.1.2 VIEW AUTOZ.......................................................................................................................................69

3.4.1.3 EDIT AUTOZ........................................................................................................................................70

3.4.5.1 RESET - SETS ....................................................................................................................................73

3.4.5.2 RESET - UNITS...................................................................................................................................74

3.4.5.3 RESET - SEQ......................................................................................................................................74

3.4.5.4 RESET - CAL.......................................................................................................................................74

3.4.5.5 RESET - ALL .......................................................................................................................................75

3.4.7.1 SCRSAV ..............................................................................................................................................76

3.4.7.2 SOUND................................................................................................................................................76

3.4.7.3 TIME.....................................................................................................................................................77

3.4.7.4 ID..........................................................................................................................................................77

4. REMOTE OPE RATION .........................................................................82

4.1 OVERVIEW .......................................................................................................................................82

4.2 INTERFACING ..................................................................................................................................82

4.2.1 RS-232 INTERFACE ............................................................................................................................................82

RPM3/HPMS A30000/ A6000- AF Operation and Mai ntenance Man ual

4.2.1.1 COM1...................................................................................................................................................82

4.2.2 IEEE-488 (GPIB) ..................................................................................................................................................83

4.3 REMOTE COMMAND SYNTAX AND STYLE.....................................................................................83

4.3.1 LOCAL AND REM OTE SETTING.......................................................................................................................83

4.3.2 COMM AND S YNTAX........................................................................................................................................... 84

4.3.3 QUERIES AND REPL IES....................................................................................................................................84

4.3.4 MULT IPLE COMMANDS..................................................................................................................................... 84

4.3.5 COMMAND P ARAMETERS................................................................................................................................85

4.3.6 SUFFIXES ............................................................................................................................................................ 85

4.3.7 PROGRAMMING TIPS........................................................................................................................................ 85

4.4 COMMANDS .....................................................................................................................................89

4.4.1 ERROR MESSAGES ...........................................................................................................................................92

4.4.2 COMMAND DE S CRIPTIONS.............................................................................................................................. 94

4.5 STATUS SYSTEM...........................................................................................................................124

4.5.1 STATUS REPORTING SYSTEM.......................................................................................................................124

4.5.2 STATUS SUBSYSTEM......................................................................................................................................129

4.2.1.2 COM2...................................................................................................................................................83

4.3.7.1 SCPI AND IEEE-488.2 ........................................................................................................................85

4.3.7. 2 PROGRAMMING TECHNIQUE.......................................................................................................... 86

4.4.2.1 IEEE STD. 488.2 COMMON AND STATUS COMMANDS.................................................................94

4.4.2.2 MEASUREMENT SUBSYSTEM.........................................................................................................97

4.4.2.3 CALCULATE SUBSYSTEM.............................................................................................................. 102

4.4.2.4 CALIBRATION SUBSYSTEM ...........................................................................................................103

4.4.2.5 DISPLAY SUBSYSTEM....................................................................................................................105

4.4.2.6 SENSE SUBSYSTEM.......................................................................................................................106

4.4.2.7 STATUS SUBSYSTEM.....................................................................................................................108

4.4.2.8 SYSTEM SUBSYSTEM.....................................................................................................................116

4.4.2.9 UNIT SUBSYSTEM........................................................................................................................... 122

4.5.1.1 SCPI STATUS SUBSYSTEM............................................................................................................ 124

4.5.1.2 ERROR QUEUE................................................................................................................................124

4.5.1.3 STATUS BYTE REGISTER...............................................................................................................125

4.5.1. 4 STANDARD EVENT REGISTER...................................................................................................... 127

4.5.1.5 RPT READY STATUS REGISTER...................................................................................................128

4.5.2.1 OPERAT ION REGISTER STRUCTURE..........................................................................................129

4.5.2.2 QUESTIONABLE REGISTER ST RUCTURE...................................................................................132

5. MAINTENANCE, CALIBRATIO N AND REPAIR ...................................... 136

5.1 INTRODUCTION .............................................................................................................................136

5.2 RPM3 MAINTE NANCE....................................................................................................................137

5.2.1 AUTOZER O OF RPTS.......................................................................................................................................137

5.2.1.1 GAUGE MODE OPERATION ...........................................................................................................137

5.2.2 ADJUSTMENT OF ON-BOARD BAROMETE R...............................................................................................138

5.2.3 RPM3 OVERHAUL.............................................................................................................................................138

5.3 RPM3 RPT CALIBRATION..............................................................................................................139

5.3.1 PRINCIPLE.........................................................................................................................................................139

5.3.2 EQUIPMENT REQUIRED ..................................................................................................................................141

5.3.3 SET-UP AND PREPARAT ION.......................................................................................................................... 142

5.3.4 RPT CALI BRATION USING RPM3 CALTOOL SOFTWARE..........................................................................142

5.3.5 EDITING AND V IEWING RPT CALIBRATION INFORMATION...................................................................... 143

5.3.6 SETTING ZNATERR.......................................................................................................................................... 144

5.3.7 RPT CALIBRATION/ADJUSTMENT WITHOUT RPM3 CALTOOL SOFTWARE...........................................145

5.4 RPM3 REPAIR ................................................................................................................................146

5.4.1 REMOVING AND REINSTALLING RP M3 IN THE HPMS................................................................................146

5.4.2 OPENING AND CLOS ING THE RPM3 CASE..................................................................................................147

5.4.3 RELOADING RPM3 EMBEDDED SOFTWARE INTO FLASH MEMORY.......................................................148

5.4.4 RPM3 INTERNAL VIEW.................................................................................................................................... 148

5.2.1.2 ABSOLUTE MODE OPERATION .....................................................................................................137

5.3.1.1 PA/PM COEFFICIENTS.................................................................................................................... 140

5.3.1.2 SETTING ZNATERR......................................................................................................................... 140

5.3.1. 3 ORDER OF OPE R A TIONS...............................................................................................................141

5.3.1.4 AS RECEIVED/AS LEFT DATA........................................................................................................141

5.4.4.1 SDS MODULE ...................................................................................................................................149

5.4.4.2 RPTS..................................................................................................................................................149

5.4.4.3 POWER SUPPLY..............................................................................................................................149

RPM3/HPMS A30000/ A6000- AF Operation and Mai ntenance Man ual

5.4.4.4 COOLING FAN..................................................................................................................................149

5.4.4.5 MICRO BOARD.................................................................................................................................149

5.4.4.6 MAIN BOARD....................................................................................................................................149

5.4.4.7 ON-BOARD BAROMETER ...............................................................................................................149

5.4.4.8 DISPLAY............................................................................................................................................149

5.5 HPMS MAINTENANCE....................................................................................................................150

5.5.1 HPMS OV E RHAUL............................................................................................................................................ 150

6. TROUBLESHOOTING......................................................................... 152

6.1 OVERVIEW .....................................................................................................................................152

7. APPENDIX ........................................................................................ 157

7.1 PRESSURE UNIT CONVERSIONS..................................................................................................157

7.2 WARRANTY STATEMENT..............................................................................................................158

8. GLOSSARY....................................................................................... 161

RPM3/HPMS A30000/ A6000- AF Operation and Mai ntenance Man ual

AABBLLEES

Table 1. RPM3/HPMS A 30000/A6000-AF Supplied Items...................................................................5

Table 2. RPM3 Range Identific ation Summary..................................................................................19

Table 3. Summary of RPM 3 Dir ect Function Key Operation..............................................................23

Table 4. PresU - Available Units .......................................................................................................56

Table 5. READRT - Display Updat e Rates........................................................................................56

Table 6. Functions - S ec ur ity Levels .................................................................................................79

Table 7. RPM3 COM1 DB-9F P in Designations ................................................................................82

Table 8. IBM PC/XT DB-9F, DB- 9M Connec tions .............................................................................82

Table 9. RPM3 COM2 DB-9M P in Des ignations................................................................................83

Table 10. Quick Programm ing Tips.....................................................................................................88

Table 11. Command Summary ...........................................................................................................89

Table 12. “SYSTEM:ERROR?” QUERY REPLY.................................................................................93

Table 13. 8 Bit Status Byte Register .................................................................................................125

Table 14. Standard Event Regis ter...................................................................................................127

Table 15. 8 Bit RPT Ready Status Register ......................................................................................128

Table 16. Troubleshooting Sym ptom/Probable Cause/S olution List...................................................152

Table 17. Pressure Unit of M eas ur e Conv er s ions .............................................................................157

Table 18. DH Instrument s, Inc. Authorized Service Prov ider s .........................................................159

RPM3/HPMS A30000/ A6000- AF Operation and Mai ntenance Man ual

Figure 1. RPM3/HPMS Front P anel .....................................................................................................7

Figure 2. RPM3/HPMS Rear Panel......................................................................................................8

Figure 3. RPM3/HPMS Side View........................................................................................................8

Figure 4. RPM3 Front Panel ................................................................................................................ 9

Figure 5. RPM3 Rear Panel...............................................................................................................10

Figure 6. RPM3 Keypad.....................................................................................................................15

Figure 7. RPM3/HPMS Front P anel ...................................................................................................21

Figure 8. RPM3/HPMS Internal S c hem atic.........................................................................................22

Figure 9. Status Byte Regist er .........................................................................................................125

Figure 10. Illustration of t his S tructure Duplicat ed for Each of the OPERation, INS Trument, and

Figure 11. Relationship of the OPERation Register and It s S uppor t Registers....................................131

Figure 12. Illustration of t his S tructure Duplicat ed for Each of the OPERation, INS Trument, and

Figure 13. Relationship of the QUEStionable Register and It s S uppor t Registers...............................134

Figure 14. RPM3/HPMS Side View....................................................................................................147

Figure 15. RPM3 Internal View..........................................................................................................148

IIG

ISUMmary Registers.........................................................................................................130

ISUMmary Registers.........................................................................................................133

URREESS

RPM3/HPMS A30000/ A6000- AF Operation and Mai ntenance Man ual

This manual provides the user with the basic information necessary to operate an RPM3/HPMS A30000/A6000-AF Reference Pressure Monitor with High Pressure Mounting System. It also includes a great deal of addit ional information provided to help you opt imize use of t he instrument and take full advantage of its many features and functions.

Before using this manual, take a moment to f amiliarize yours elf with the T able of Content s struc ture. All first time users should read Chapter 2. Chapter 3 provides a comprehensive description of general RPM3/HPMS operating principles. Section 3.1.7 describes the automated Sequence function used to run calibrations and verifications of typical ins truments under test . This is the way the instrument is typically used. Chapter 4 is for remote operation from an external computer. Chapter 5 provides maintenance and calibration information. Chapter 6 is a quick troubleshooting guide. Use it to troubleshoot unexpected RPM3/HPMS behavior based on the symptoms of that behavior. Certain words and expr essions hav e specif ic meaning as t hey pert ain to t his produc t. The Glossary is usef ul as a quick ref erence f or exact definit ion of specif ic words and expr essions as t hey are used in this manual.

RPM3/HPMS A30000/A6000-AF is usually delivered as part of an HGC-30000-AF system which includes an OPG1 hydraulic pressure generator/controller. The OPG1 has its own Operation and Maintenance M a nual.

BBO

UTT

HIISS

AAN

UAALL

FOR THOSE OF YOU W HO “DO N’T RE AD M ANUAL S”, GO DIRE CTL Y T O SEC TION 2 .3 TO SE T UP YOUR RPM3/HPMS AND THEN 2.4 FOR POWER UP AND VERIFICATION. THIS WILL GET YOU RUNNING QUICKLY WITH MINIMAL RISK OF CAUSING D AMAGE TO YOURSE LF OR YOUR NE W RPM3. THE N… WHEN YOU HAVE QUESTIONS OR START TO WONDER ABOUT ALL THE GREAT FEATURES YOU MIGHT BE MISSING, GET IN TO THE M ANUAL!

Manual Conventions

(CAUTION) is us ed throughout the m a nua l to identify user w a rnings a nd cautions.

(NOTE) is used throughout the manual to identify operating and applications advice and additional explanations.

[ ] indicates direct function keys (for example [RANGE]).

< > indicates RPM3 scr een dis play s ( for example <1yes>).

RPM3/HPMS A30000/ A6000- AF Operation and Mai ntenance Man ual

OOTTEES

RPM3/HPMS A30000/ A6000- AF Operation and Mai ntenance Man ual

1. INTRODUCTION

1.1 PRODUCT OVERVIEW

RPM3/HPMS A30000/A6000-AF is the combination of an RPM3 A5000/A6000-AF reference pressure monitor and an HPMS High Pressure Mounting System. The combination of an RPM3/HPMS A30000/A6000-AF and an OPG1-AF oil pressure generator make up the HGC-30000-AF hydraulic gauge calibrator. The OPG1-AF has it s own Operation and Maintenance manual.

RPM3 A30000/A6000-AF is a stand-alone, microprocessor driven, reference pressure monitor intended to accurat ely measure oil pressure in a variety of pressure calibr ation, measurement and testing applications . It has been designed t o provide very high perfor mance and extensiv e features combined with maximum v er s atility and ease of use. RPM3 A30000/A6000-AF is a special version of the standard DHI RPM3 product configured specifically for the USAF HGC-30000-AF hydraulic gauge calibrator.

The HPMS mounts the RPM3 at a conv enient viewing angle and c ontains t he hardware t o isolat e the RPM3’s low pressure tr ans ducer (A6000) when the high press ure transducer (A30000) is in use.

RPM3 A30000/A6000-AF uses tw o high accurac y ref erence pres sure t ransduc ers (RP Ts) and an onboard barometer t o m eas ur e pr es s ur e.

RPM3 A30000/A6000-AF is controlled locally by the operator using its front panel display, keypad and foot pedal or remot ely by a computer using ASCI I character command strings over its RS-232 and IEEE-488 interfaces.

RPM3 A30000/A6000-AF has s ix pressure m easurement r anges from 0 t o 2 000 psi (7 MPa) t o 0 to 30 000 psi (200 MPa) in gauge and absolut e m eas ur em ent modes.

RPM3/HPMS A30000/ A6000- AF Operation and Mai ntenance Man ual

1.2 SPECIFICATIONS

1.2.1 GENERAL SPECIFICATIONS

Power Requirements: 85 to 264 VAC, 47 to 440 Hz , 18 VA max consumption Operating Temperature Range: 15 to 45 °C Storage Temper ature Range: -20 to 70 °C Weight: RPM3: 3.5 kg ( 7.7 lb)

Dimensions: 21.5 cm H x 29 cm W x 38 cm D

Microprocessor: Motorola 68302, 16 MHz Communication Port s : RS-232 (COM1), RS-232 (COM2), I EEE-488 Pressure Ranges: 2 000 psi (14 MPa), 4 000 ps i ( 28 M P a) , 6 000 psi

Operating Medium: Oil (Di-ethyl hexy l s ebac ate) Pressure Connections:

Test port (RPT > 10 000 psi): DH500 (gland and c ollar type for coned and left hand

Pressure Limits:

Maximum working pressure: Maximum pressur e w/o damage:

HPMS: 5.8 kg (12.8 lb) RPM3/HPMS: 9.3 kg (20.5 lb)

(8.5 in. x 11.5 in. x 15.0 in.) approx .

(42 MPa), 10 000 psi ( 70 M P a) , 18 000 psi (126 MPa), 30 000 psi (200 MPa) gauge and absolut e.

threaded tube, equivalent to AE F250C, HIP HF4, etc.)

30 000 psi (214 MPa) 37 000 psi (255 MPa)

1.2.2 PRESSURE MEASUREMENT SPECI FICATIONS

RPM3 A30000/A6000-AF is configured with two reference pressure transducers (RPT). Each transducer has three ranges. The RPTs are of the absolute pressure type with an evacuated, permanently sealed reference. Absolute RPTs measure both absolute and gauge pressure. Gauge pressures are defined by offsetting atmospheric pressure dynamically with compensation for atmos pher ic c hanges us ing an on board barometer.

RPM3/HPMS A30000/ A6000- AF Operation and Mai ntenance Man ual

1.2.2.1 RPT MEASUREMENT SPECIFICATIONS (% FS OF ACTIVE RANGE)

Transducer Type: Oscillating quart z resonator Warm Up Time: 30 minutes for operation within s pec ifications Resolution: To 1 ppm, user settable by individual range Overpressur e Lim its:

Without effect on calibration: Without perm anent damage:

Temperature E ffect: ± 0.008 % max imum temper ature eff ect in normal

Acceleration Affect: ± 0.008 % /g maximum, worst axis Precision

Stability

: Range: H3: 0.0150 %

: Gauge Mode (w/Autozero): Absolute Mode (w/ A utozero):

Measurement Uncer tainty

Gauge Mode (w/Autozero):

Absolute Mode (w/ A utozero):

115 % of Range 3 125 % of Range 3

ambient operating range of 15 to 45 °C

Ranges H1, H2: 0.0125 % Ranges L1, L2, L3: 0. 010 %

All Ranges

0.008 %

H3 H2, H1

0.017 % 0.015 % 0.013 %

L1, L2, L3

1 Precision: Combined linearity, hysteresis, r epeatability of measurement s made by the

reference pressure transducer. When using an absolute RPT for gauge mode measurement add account the resolution and short term stability of the on-board barometer used for dynamic atmospheric pressure compensation.

2 Stability: Maximum change in zero and span over 180 days for t ypical tr ansducer us ed

under typical conditions. As stability can only be predicted and varies from transducer to transducer, stability for a specif ic RPT should be established from exper ience.

3 Measurement Uncertainty: Combined precision, st ability, temperature effect.

± 2.5 Pa (0.00035 psi) to the precision specification to take into

RPM3/HPMS A30000/ A6000- AF Operation and Mai ntenance Man ual

1.2.2.2 ON-BOARD BAROMETER

Sensor Technology: Micro-machined silicon Warm Up Time: None required Resolution: 1.25 Pa (0.00018 psi)

The on-board barom eter is NOT used as a so urce of absolute accuracy. It is used only to measure changes in atmospheric pressure for dynamic compensation of the atmospheric pressure offset when using an absolute reference pressure transducer to make gauge pressure measurements (see Section 3.4.1, Gauge Mode with an Absolute RPT, Dynamic Compensation for Atmospheric Pressure).

RPM3/HPMS A30000/ A6000- AF Operation and Mai ntenance Man ual

2. INSTALLATION

2.1 UNPACKING AND INSPECTION

RPM3/HPMS A30000/A6000-AF is usually delivered as part of an HGC-30000-AF system which includes an OPG1 hydraulic pressure generator/controller. The OPG1-3000-AF is shipped in a separate corrugated conta ine r a nd ha s its O p er a tio n a nd Maintenance Manual.

2.1.1 REMOVING FROM PACKAGING

RPM3/HPMS A30000/A6000-AF is delivered, along with its accessories, in a reusable molded plastic, shipping c ontainer with polyurethane ins er ts to hold it in place.

Remove the RPM3/H P M S A 30000/A6000-AF and its ac c es s ories from the shipping container and remove each element from its protec tive plastic bag.

Retain the shipping conta iner for repacking the RPM3/HPMS A3 0000/A6000-AF when it is shipped for recalib ration of repair.

2.1.2 INSPECTING CONTENTS

Check that all item s are present and have NO vis ible dam age. A standard RPM3/ HP M S A 30000/A6000-AF includes all items listed in Table 1.

Table 1. RPM3/HPMS A30000/A6000-AF Supplied Items

DESCRIPTION PART NO.

RPM3/HPMS A30000/A6000-AF Reference Pressure Monitor/ High Pressure

Mounting System Transport case (with inserts) ( used f or or iginal shipment) 123122 Foot Switch Assembly 401613 Operation and Maintenance Manual, RPM3/HPMS A30000/A6000 550115 Calibration Certificate 550100 Test Report, HGC-30000-AF ( if RPM3/ HPMS delivered as par t of HG C-30000- AF

system)

Accessories: 401605

Power Cord (7.5 ft.) 100770 General Accessories Disk (Important: I ncludes syst em suppor t sof t war e and

documentation)

RPM3 CalTool Manual 550106

401604

550116

102987

RPM3/HPMS A30000/ A6000- AF Operation and Mai ntenance Man ual

2.2 SITE REQUIREMENTS

The RPM3/HPMS A30000/A6000-AF is typically delivered as part of an HGC-30000-AF hydraulic gauge calibrator that includes an OPG1-30000-AF that has its own Operation and Maintenance Manual. See the OPG1-30000- AF Operation and Maint enance Manual for infor mation on site requirement s for the HGC-30000-AF.

Install RPM3/HPM S A30000/A6000-AF on any stable surface at a convenient height. Consider t he placement of the FOOT SWITCH which may need to be accessed frequently while running calibrations.

Support facilities required f or RPM3/HPMS A30000/A6000- AF include an electrical power sour ce of 85 to 264 VAC, 47 to 440 Hz .

2.3 INITIAL SETUP

2.3.1 PREPARING FOR OPERATION

To prepare RPM3/ HP M S A 30000/A6000-AF for c hec k out and operation:

• Remove the plastic plug from the RPM3/HPMS A30000/A6000-AF rear panel

TEST connection.

• Remove the protective plastic sheet from the RPM3 f r ont panel display.

• Familiarize yourself briefly with the RPM3 and HPMS f ront and rear panels ( see Sect ions

2.3.2, 2.3.3).

RPM3/HPMS A30000/ A6000- AF Operation and Mai ntenance Man ual

2.3.2 RPM3/HPMS FRONT AND REAR PANELS

2.3.2.1 FRONT PANEL

1. Lo RPT Shut Off Valve Position LED

2. Lo RPT Shut Off Valve Knob

3. Lo RPT Active Valve Position LED

4. Caution Lo RPT Active LED

5. RPM3 A30000/A6000-AF Reference Pressure Monitor

Figure 1. RPM3/HPMS Front Panel

RPM3/HPMS A30000/ A6000- AF Operation and Mai ntenance Man ual

2.3.2.2 REAR PANEL

DH Instrume nts, Inc.

4765 East Beautiful Lane Phoenix AZ 85044- 5318 USA Tel 602.431.9100 Fax 602.431.9559 dhi@dhinstruments.com www.dhinstruments.com

Made in USA

1. Foot switch (Remote [ENTER]) cable connection

2. TEST port (DH500 F)

Figure 2. RPM3/HPMS Rear Panel

2.3.2.3 SIDE VIEW

DO NOT EXCEED

30000 psi

(200 MPa)

FOOT

SWITCH

TEST

6, 7

1. Lo RPT Isolation Valve Control Knob 5. TEST port (DH500 F)

2. RPM3 A30000/A6000-AF Reference Pressure Monitor 6. Electrical Power Connector (IEC320-C13)

3. Lo RPT Pressure Relief Valve 7. Foot switch (remote [ENTER]) connector

4. Oil Collection Cup (from Relief Valve)

Figure 3. RPM3/HPMS Side View

RPM3/HPMS A30000/ A6000- AF Operation and Mai ntenance Man ual

2.3.3 RPM3 FRONT AND REAR PANELS

2.3.3.1 FRONT PANEL

345

1. Display 4. RPT designator label

2. Multi-Function Keypad 5. Soft ON/OFF key and indicator

3. Remote Indicator

Figure 4. RPM3 Front Panel

RPM3/HPMS A30000/ A6000- AF Operation and Mai ntenance Man ual

2.3.3.2 REAR PANEL

1. Accessories Connection Cable (connects to HPMS 4. ATM Post (On-Board Barometer) Rear panel FOOT SWITCH and HPMS LEDs) (10-32 UNF)

2. Electrical Power Connector (IEC320-C13) 5. Label, Product (on bottom of case)

3. LO TEST Port (A5000 RPT) (1/8 in. NPT F) 6. HI TEST Port (A30000 RPT) (DH500 F)

Figure 5. RPM3 Rear Panel

2.3.4 POWER CONNECTION

• Connect the power cable t o the RPM3 rear panel electr ic al power connector.

• Do NOT connect the other end of the power c able to a power source yet.

RPM3 is always powered and active when power is supplied through the rear panel power co nne ctor. The front p a nel O N/OFF key co ntrols a soft O N /O F F (s e e Se ctio n 3.1.4).

RPM3/HPMS A30000/ A6000- AF Operation and Mai ntenance Man ual

2.3.5 FOOT SWITCH CONNECTION

Connect the foot switch supplied in the RPM3/HPMS ac cessories to the HPMS rear panel electrical connection labeled FOOT SWITCH. Place the foot switch on the floor at a convenient location. The FOOT SWITCH function is equivalent to the RPM3 front panel [ENTER] key and may be used fr equently while running tests and c alibr ations.

2.3.6 TEST PORT CONNECTION

A single high pressure TEST port is prov ided on the rear panel of the HPM S . The test port connection is a DH500 F. DH500 is a gland and collar ty pe fitting f or 1/4 in.

(6 mm) coned and left hand threaded tube. DH500 is equivalent to AE F250C, HIP HF4, etc.

Connecti on to OP G1 if the RPM3/HPMS is Part of an HGC-30000-AF S yst em

If the RPM3/HPMS was delivered as part of an HG C-30000-AF Hydraulic G auge Calibrator, an OPG1 Oil Pressure Generator/Controller was delivered with it. The OPG1 includes a fittings kit with the necessary fittings to interconnect the RPM3/HPMS and OPG1 and instructions on making the connection. S ee the OPG1-30000-A F manual.

USE THE CORRECT PRESSURE CONNECTORS: The RPM3/HPMS TEST port fitting is a DH500 F (see Section 1.2.1). It is NOT a 1/8 in. NPT F . Never use fittings other than the correspo nding male fittings in these connec tors. D amage to the connecto rs and d angerous failure under pressure co uld res ult from using incorrect fittings.

DO NOT AP PLY PRESSURE UN TIL YOU ARE FAM ILIAR WITH OPERATION : The RPM3/HPMS rear panel test port connects internally to both the RPM3’s 6 000 psi (40 MPa) and 30 000 psi (200 M Pa)RPTs. T he valve on the front o f the HPMS isolate s the low press ure RPT when the high pressure RPT is in use. Do not app ly pressure to the RPM3/HPMS until you are familiar with its operation and know how to protect the low pressure RPT from overpressure (see Section 3.1.8). FAILURE TO PROTECT THE LOW PRESSURE RPT FROM OVERPRESSURE MAY DESTROY IT. DAMAGE D UE T O RP T OV ERPRESSURE IS NO T COVERE D BY THE PRODUCT WARRANTY.

2.3.6.1 THE RPM3 AT M PORT

The ATM pass through on the RPM3 rear panel is connected to the RPM3’s onboard barometer. This connection assures that the on-board barometer measures ambient atmospher ic pressure rather than the press ure inside the RPM3 case that may vary slightly from ambient pressure. The ATM port should be left open and unobstructed.

NEVE R plug or obs truct the ATM pas s through as this ma y adverse ly affect gauge mode operation and autozeroing on an absolute transducer.

RPM3/HPMS A30000/ A6000- AF Operation and Mai ntenance Man ual

2.3.7 SETTING UP FILE SEQUENCES

RPM3 supports automated test/calibration sequences. Sequence parameters for testing specific DUTs can be stored in Sequence Files and recalled when a Sequence is run. Consider setting up Sequence Files for frequently t ested DUTs as part of t he RPM3 set up process (see Section 3.3.6).

2.4 POWER UP AND VERIFICATION

2.4.1 APPLY POWER

Connect the RPM3 power cable to an electric supply of 85 to 264 VAC (47 to 440 Hz). Observe the front panel display as RPM3 initializes, error checks and goes to the main run screen (see Sect ion 3.1. 2). Check t hat one of the t wo green Valve St atus LEDs on t he front panel of the HPMS is lit (the red LED should NO T be ON).

RPM3 is always powered and active when power is supplied through the rear panel power connector. The front panel ON/OFF key controls a soft ON/OFF function (see Section 3.1. 4).

If the RPM3 fails to reac h the main run sc reen, servic e is required. Recor d the sequence of operation and displays observed and contact a DHI Authorized Service Center (see Section 7.2, Table 18).

If neither of the green LEDs on the HPMS front panel lights, check that the 9-pin D-Sub accessory cable at the rear of the RPM3 itself is properly connected to the ACC. J1 connector.

The active range o n power up is the sam e as the range that was active at the last power down (see Section 3.1.6).

2.4.2 CHECK PROPER PRESSURE MEASUREMENT OPERATION

2.4.2.1 CHECKING ABSO L UT E MODE PRESSURE MEASUREMENT

Check that the RP M 3 RP Ts operate properly in abs olute mode. Open the RPM3/HP MS TES T port t o atmosphere. Put the valv e knob in the HPMS

front panel into the Lo RPT Active position. This opens the Lo RPT t o the HPMS TEST port.

Press [MODE] on the RPM3 and select absolute. Change the pressure unit of measure using [UNIT] if desired (see Sec tion 3.2.3).

Observe the RPM3 indicated pressure. Check that t he value is equal to at mospheric pressure [RANGE] and [ENTER] to change ranges. Check that the values of atmospheric pressure measured by the different ranges agree with each other within RPM3 measurement tolerances (see Section 1.2.2.1). If they do NOT agree within

± 5 psi. Repeat this process for all the ranges on both RPTs using

RPM3/HPMS A30000/ A6000- AF Operation and Mai ntenance Man ual

tolerances, RPM3 may need calibration or repair.

2.4.2.2 CHECKING GAUGE MODE PRESSURE MEASUREM ENT

Open the RPM3/HP MS TES T port t o atmosphere. Put the valv e knob in the HPMS front panel into t he Lo RPT Active position. This opens the Lo RPT t o the TEST port.

Press [MODE] on the RPM3 and select gauge. Change the pressure unit of measure using [UNIT] if desired (see Sec tion 3.2.3).

The value indicated should be near z ero ( then press [AutoZ]. This runs AutoZ to zero the range (see S ection 3.2.10). Upon return to the m ain run screen, observe that the indication of m easured pr essure has zeroed.

Use [RANGE] and [ENTER] to change ranges (see Section 3.2.2) and repeat the zeroing process for each range (the two minute wait does not need to be repeated each time).

If a range fails to zero properly, RP M 3 m ay need r epair .

It is normal for RP M3 to indicate a value o ther than zero when vented when gauge mode is first entered or ra nges are changed, especially if Auto Z is OFF, RPM3 ha s been OFF for so me time, its location ha s changed or the fluid head to which it is connected has changed.

± 5 psi, 35 kPa). W ait two minutes and

2.5 SHORT TERM STORAGE

The following is recomm ended for short ter m s torage of RPM3/HPM S :

• Vent the RPM3/ H P M S TEST port.

• Disconnect the power s upply .

When RPM3 will NOT be us ed for some t ime, it m ay be left powered, but use the soft ON/OFF key to turn OFF the display.

2.6 LONG TERM STORAGE AND SHIPPING

The following is recommended for long term storage and or shipping of RPM3/HPMS:

• Plug the HPMS TE S T port.

• Place the RPM3/HPMS in a plastic bag.

Place the RPM3/HP M S in the custom shipping/ s torage container in which it was deliv er ed.

RPM3/HPMS A30000/ A6000- AF Operation and Mai ntenance Man ual

OOTTEES

RPM3/HPMS A30000/ A6000- AF Operation and Mai ntenance Man ual

3. OPERATION

3.1 GENERAL/MANUAL OPERATION

RPM3/HPMS is designed to offer the optimum balance bet ween simple, str aight forward operation and the availability of a wide v ar iety of funct ions with a high level of operator disc r etion if desired.

The RPM3 provides the local operator interface is through a front panel 2 x 20 character alphanumeric display, a 4 x 4 multi-function k ey pad and an [ENTER] foot switch.

The HPMS mounts the RPM3 at a convenient viewing angle and includes a valve and visual indicators to isolat e and protect the RP M3’s 6 000 psi RPT (Ranges L1, L2, L3) when using t he 30 000 psi RPT (Ranges H1, H2, H3) (see Section 3.1.6).

3.1.1 KEYPAD LAYOUT AND PROTOCOL

The RPM3 has a 4 x 4 keypad and an [ENTER] foot switc h for loc al operator access to dir ect functions, function menus and for data entry.

1. The Editing and Execution keys are for

execution, suspending execution, backing up in menus and editing entries.

The Menu/Data keys provide access to

2. function menus from the main run screen. The menu name is on the bottom half of the key. The SETUP menu is for more frequently used functions (see Section 3.3).

The SPECIAL menu is for functions that are NOT generally used as a part of day to day operation (see Section 3.4). These keys enter numerical values when editing.

The Function/Data keys allow very

3. commonly used functions to be accessed directly from the main run screen by a single keystroke. The name of the function is on the bottom half of the key (see Section 3.2.1). These keys enter numerical values when editing.

[ENTER] Foot Switch (not shown) acts in exactly the same manner as t he keypad [ENTER]

4. key. It serves as a remot e [ENTER] key to be used when the operat or’s hands are occupied or touching the RPM3 front panel is not convenient.

Figure 6. RPM3 Keypad

RPM3/HPMS A30000/ A6000- AF Operation and Mai ntenance Man ual

Key press confirmation is provided by both tactile and audible feedback. A single tone confirms a valid entry, a descending t wo note t one signals an invalid ent ry. The audible v alid entry feedback can be suppressed or modified by pressing [SPECIAL] and selecting <7Intern>, <2sound> (see S ection 3.4.7.2) .

Pressing the [ENTER] key or foot swit ch generally c auses exec ution or f orwar d movement in the menu tree.

Pressing the [ESCAPE] key moves back in the menu tree and/or causes execution to c ease or suspend without changes being implemented. Pressing [ESCAPE] repeatedly event ually returns to the main run screen. From the main run screen, pressing [ESCAPE] allows momentary viewing of the RPM3 introduction screen.

Pressing the [+/ -] key changes a numerical sign when editing. It also toggles through multiple screens when available.

Pressing the [

←←←←] and [→→→→] keys allow reverse and forward cursor movement when editing

data entry. These keys are also used to scroll through choic es .

Some screens go beyond the two lines provided by the display. This is ind icated b y a flashing arrow in the second line of the displa y. Use [←←←←] and [→→→→] to mo ve the cursor to access the lines that are NOT visible or directly enter the number of the hidden menu choice if yo u know it.

3.1.2 MAIN RUN SCREEN

The RPM3 main run scr een is its home display that is reac hed on power up and from which other functions and menus are accessed. It is the top level of all menu struct ur es .

The main run screen is where the RPM3 is left in normal operation. It display s the current measured pressure as well as a v ar iety of additional information if desired.

D DISPLAY FUNCTION

4. <M>: Pressure measurement mode: <g> for gauge, <a> for absolute (see Section 3.2.4).

5. <h>: Indicates whether a head correction is applied. <h> if applied, blank if NOT (see Section 3.2.8).

6. <z>: Indicates whether the autozero function is ON or OFF. <z> if ON; blank if OFF (see Section 3.4.1).

7. <RR>: Indicates active RPT (<H> = high, <L> = low) and range (<1> = low, <2> = mid, <3> = hi) (see Section 3.2.2).

8. <DISPLAY FUNCTION>: Information displayed depends on current display function.

9. <D>: Indication of w hat is being displayed on the bottom line of the display as set by the DISP LAY func tion (see Section 3.2.7). Choices include:

• <σσσσ>: Current DISPLAY mode is average (see Section 3.2.7.1).

• <R>: Current DI SPLA Y mode is rate (s ee Sec tion 3. 2.7.2); or if <n avg > is in the bottom r ight hand c or ner of

the display, c urrent DISPLAY mode is average and this is the instantaneous reading average screen (s ee Section 3.2.7.1).

• <H>: Current DISPLAY mode is hi/lo (see Section 3.2.7.5).

1. <•> Ready/Not Ready indication, <•> when Ready,

↑↑↑↑> or <↓↓↓↓> indicating direction of measur ed pressure

evolution when Not Ready (see Section 3.1.5).

2. <PRESSURE1>: Numerical value and sign of pressure meas ur ed by ac tiv e R PT and r ange. S hows result of last average in average display mode (see Section 3.2.7.1).

3. <UNIT>: Current unit of measure (see Section 3.2.3).

RPM3/HPMS A30000/ A6000- AF Operation and Mai ntenance Man ual

• <D>: Current DISPLAY mode is deviation (see Section 3.2.7.3).

• <✳✳✳✳>, <↑↑↑↑> or <↓↓↓↓>: Current DISPLAY mode is RPT (see Section 3.2.7.4).

• <F>: Current DISPLAY mode is freeze (see Section 3.2.7.6).

• Blank, NO character: Current DISPLAY mode is clean (see Section 3.2.7.7).

RPM3 has a screen saver function that causes the display to dim if NO key is pressed for

10 minutes. Pressing a key restores full power to the display. The screen saver activation time can be changed or screen sa ving can be co m pletely suppressed (see Sectio n 3.4.7.1).

3.1.3 SOUNDS

RPM3 is equipped with a variable frequency tone device to provide audible feedback and alarms. The beeper is us ed for the following indications :

• Valid key press: Brief beep. Choice between three frequencies or NO sound is

available (see Section 3. 4.7.2).

• Invalid key press or out of tolerance reading when running an automated

test sequence: Descending two tone blurp (see Section 3.2.11.2).

• In tolerance reading when running an automated test sequence: Ascending three

tone fanfare (see Section 3.2.11.2).

• Leak check rout ine compl et ed: Three two sec ond beeps ( s ee S ec tion 3.3.5).

• UL (upper limit) exceeded: Intermittent one s ec ond beeps (see Section 3.2.5).

• Pmax! (overpressure limit) exceeded: Eight second high frequency beep (see

Section 3.2.5.1).

• Lo RPT is active but a Hi RPT range is selected: Intermittent two second high

frequency beep. T he audible alarm is combined wit h flashing of t he red, Lo RPT Active LED on the HPMS (see Section 3.2.5. 2) .

3.1.4 SOFT [ON/OFF] KEY

RPM3 is equipped with a soft [ON/OFF] key and indicator LED on the bottom left hand corner of the front panel. The purpose of the soft ON/OFF key is to put RPM3 into a dormant mode in which the dis play is turned OFF but power is still s upplied and overpres s ur e functions are still active. When RPM3 is ON, the ON/OFF indicator is ON continuously. When RPM3 is soft OFF, the ON/OFF indicator blinks ever y five seconds.

The soft [ON/OFF] key can also be used to reset from an overpressure condition (see Section 3.2.5.1).

When RPM3 is soft OFF, r ec eiv ing a r em ote command turns it ON.

RPM3/HPMS A30000/ A6000- AF Operation and Mai ntenance Man ual

3.1.5 PRESSURE READY <*>/NOT READY (<↑↑↑↑> OR <↓↓↓↓>) INDICATION

The character to the left of the measured pressure on the main run screen provides a pressure Ready <*>/Not Ready (< provide the user with a clear and objective indication of when a stable pressure has been achieved. Ready <*> is indicated when the current stability (rate of change) of pressure is less t han the stability limit. The user can set the stability limit (see Section 3.3.4) . The Ready indicat ion is often used when c omparing the RPM3 and a t est dev ice to indicate when a valid reading can be made.

↓↓↓↓> or <↑↑↑↑>) indication. This indication is intended to

Ready <*>/Not Ready (<

• <*>: Pressure Ready (stable).

• <↓↓↓↓>: Pressure Not Ready (unstable) and dec r eas ing.

• <↑↑↑↑>: Pressure Not Ready (unstable) and inc r eas ing.

↓↓↓↓> or <↑↑↑↑>) character indications are:

3.1.6 MULTIPLE PRESSURE RANGES

RPM3 A30000/A6000-AF has t wo ref erence pres sure t ransducer s (RP Ts) eac h of which has three ranges for a total of six pressure ranges. This multi-ranging feature allows measurement uncertaint y to be optimized for the range of pressur e in which you ar e working. Generally, the bes t range to select ( see Section 3.2.2) is that whose full scale is closest t o, but greater than, the maximum pressure of the device or system under test.

RPM3 handles all of the dat a operat ions needed to mak e r ange c hanges occur t ranspar ently to the user when the RA NGE f unct ion is used f or range s election. For a range change t o be executed, the current pressur e applied to the RPT on which the r ange is being select ed must be lower than the current upper limit (UL) of that range (see Section 3.2.5). The RPM3 Sequence feature automatically selects the most appropriate range based on the range of the device under test (see Section 3. 2.11).

When the range is changed, the upper limit automatically changes to the default for that range or to the last upper limit set for that range. In addition, most other functions and settings are range specific (see Section 3.2.2).

RPM3 A30000/A6 000- AF ha s s ix ranges. In general, s ettings and operationa l adjustments are specific to the range currently in use, as if you had six instruments rather than one. The DISP LAY function, HEAD functions and AUTO RE ADRT function are NOT range specific. In remote mode, m ost settings are RPT specific rather than range specific (see Section 4.3 ).

RPM3/HPMS A30000/ A6000- AF Operation and Mai ntenance Man ual

3.1.6.1 RANGES AND IDENTIFICATION

The active RPT and range is cont inuously indic ated in t he upper right hand cor ner of the main run screen and m os t other screens.

Hi RPT: The A30000 RPT whose maximum range is 30 000 psi (200 MPa) is referred to as the Hi RPT.

Lo RPT: The A6000 RPT whose maximum r ange is 6 000 psi (40 MPa) is referred to as the Lo RPT.

Range 1, 2 or 3: The three ranges of each RPT are r eferred to as 1 = lo range, 2 = mid range, 3 = hi range. The Lo RPT ranges, low to high, are L1, L2, L3. The high PRT ranges, low to high, are H1, H2, H3.

Table 2. RPM3 Range Identification Summar y

REFERENCE PRESSURE

TRANSDUCER AND RANGE DESIGNATION DISPLAY SYMBOL *

Lo RPT, Lo range Lo, 1 L1 2 000 ( 14)

Lo RPT, Mid range Lo, 2 L2 4 000 (28)

Lo RPT, Hi range Lo, 3 L3 6 000 ( 42) Hi RPT, Lo range Hi, 1 H1 10 000 (70)

Hi RPT, Mid range Hi, 2 H2 18 000 (125)

Hi RPT, Hi range Hi, 3 H3 30 000 (200)

* The display symbol is included in the upper, right hand corner of most RPM3 menu displays as

a convenient indicator of active range.

RANGE

PSI (MPa)

3.1.7 AUTOMATED TEST/CALIBRATION SEQUENCES

The RPM3 SEQUE NCE function supports “quick” and “file” automated calibrati on sequences. These automatically set the appropriate RPM3 range, resolution and stability limit based on the characteristics of the device under test. They also prompt the user through the increments of the calibration sequence and log calibrat ion data. The SEQUENCE funct ion should be used for most common calibration tasks, especially calibration of analog pressure gauges (see Section 3. 2.11).

RPM3/HPMS A30000/ A6000- AF Operation and Mai ntenance Man ual

3.1.8 HPMS (HIGH PRESSURE MOUNTING SYSTEM)

The HPMS (high pressure mount ing system) holds the RPM3 at a convenient viewing angle and includes a valve and visual indicat ors to isolate and prot ect the RPM3’s 6 000 psi RPT (Ranges L1, L2, L3) when us ing the 30 000 psi RPT (Ranges H1, H2, H3).

m OPERATION

Numerical references in this Section ref er to Figure 1. In normal use, t he operator’s only interaction wit h the HPMS is t o operate the isolation

valve knob to connect and disconnect the Lo RPT from the TEST port. The valve’s operation is prompt ed by the Valve Posit ion LEDs ( 1, 3).

The Lo RPT isolation valve (2) isolates and protects t he Lo RPT from the TES T port when it is closed (knob f ully CCW) and opens the Lo RPT to the T EST port when it is open (knob fully CW).

The Valve Position LEDs (1, 3) indicate the position in which the valve knob s hould be set based on the current range selection on t he RP M 3. If a range on the Hi RPT (H1, H2 or H3) is selected, the LO RPT SHUT OFF LED (1) is lit indicating that t he valve knob should be turned fully CW to close t he valve, prot ecting the Lo RPT from high pressur e. If a range on the Lo RPT (L1, L2 or L3) is selected, t he LO RPT ACTIVE LE D (3) is lit indicating that the valve knob should be turned fully CCW to open t he valve, connect ing the Lo RPT to t he test pressure.

The HPMS isolatio n va lve (2) must always b e in the clo s ed position (knob fully CCW) when operating a t p re ss ure grea te r tha n 6 000 psi (40 MPa ).

The CAUTIO N LO RPT ACTIVE LED (4) is used to indicate t hat the Lo RPT is active and provide a warning when the Lo RPT is active but a Hi RPT range is selected on the RPM3.

The CAUTION LO RPT ACTIVE LED (4) is driven by the value of pressure currently measured by the Lo RPT, it is not driven by the valve posit ion as there is no sensing of the valve position.

The CAUTION LO RPT ACT IVE LED (4) has three possible conditions:

• LED is OFF: The Lo RPT is NOT act ive. The Lo RP T is considered ac tive when it

measures a pressur e gr eater than 30 psig (200 kPa) .

• LED ON continuously: The Lo RPT IS active and a Lo RPT range is selected on

the RPM3. The LED is lit as a reminder that the Lo RPT is act ive and press ure over its maximum wor k ing pr es s ur e of 6 600 (46 MPa) should not be applied.

• LED is flashing on accompanied by high frequency beeps and <!!!LO RPT

ACTIVE!!!> disp layed by RPM3: Lo RPT IS ac tive and a Hi RP T range is s elected on RPM3. The Lo RPT should NOT be active when a Hi RPT range is in use. Hi RPT ranges will overpres s ur e and dam age the Lo RPT.

RPM3/HPMS A30000/ A6000- AF Operation and Mai ntenance Man ual

If a Hi RPT range is selected w ith the Lo RPT active, RP M3 go es into an alarm condition to avoid accidental overpressure of the Lo RPT while using a Hi RP T range. The pressure on the Lo RPT must be reduced to less than 30 psig (200 kPa) so that the CAUTION LO RPT ACTIVE LE D is O FF b efore shutting the L o RP T is olatio n valve and selecting a Hi RPT range.

The pressure rel ief valve (6) is set to open at 110 % of the RPM3 range L3 ( 46 Mpa; 6 600 psi). When the pr essure applied to the Lo RPT reaches approximately 6 600 psi (46 MP a), the pressure relief valve (6) will open reducing pressur e and bleeding oil into the pressure relief run off cup (7). Prior to opening the pr essure relief valve, the RPM3 will have gone into an overpressure condition (see Sect ion 3.2.5.1). If an overpressure condition occurs, reduce pressure as soon as possible. The pressure relief valve will reseat automatically when pressure is reduc ed.

Do NOT overpressure the Lo RPT. The Lo RPT may be da m aged beyond repair by pressure greater than 6 600 psi (4 6 MPa ). RPT dam age from o verpress ure is lo gged in user and factory maintenance pages and is not covered by the product warranty. The HPMS pressure relief valve should only be considered a last resort means of protecting the Lo RPT. Following proper operating procedures, the Lo RPT should never be

overpressured.

1. Lo RPT Pressure Relief Valve (not shown) 5. Lo RPT Active Valve Position LED

2. Lo RPT Relief Oil Run-Off Cup (not shown) 6. Caution Lo RPT Active LED

3. Lo RPT Shut OFF Valve Position LED 7. RPM3 Reference Pressure Monitor

4. Lo RPT Isolation Valve

Figure 7. RPM3/HPMS Front Panel

RPM3/HPMS A30000/ A6000- AF Operation and Mai ntenance Man ual

1. HPMS TEST port (DH500 F) 5. Lo RPT Isolation Valve

2. Connection to RPM3 Hi RPT (A30000) 6. RPM3 Reference Pressure Monitor

3. Lo RPT Pressure Relief Valve (6 600 psi) 7. Connection to RPM3 Lo RPT (A6000)

4. Pressure Relief Valve Oil Run Off Cup

Figure 8. RPM3/HPMS Internal Schematic

3.2 DIRECT FUNCTION KEYS

3.2.1 DIRECT FUNCTION KEYS SUMMARY

Local operation of RPM3 is through the 4 x 4 pressure sensitive k eypad and an [ENTER] foot switch. To minimize the us e of multi-layered menu s tructure, the 4 x 4 keypad numerical keys also provide direct access to the most commonly used functions. The function accessed is labeled on the bottom half of the k eys. Direct func tion key s are act ive whenever RPM3 is in its main run screen. Table 3 summarizes the operation of the direct function keys.

Table 3 provides a brief summary of direct function key operation. It may be useful to keep a copy of this summary near the RPM3/HPMS, especially when first becoming acquainted with its operatio n.

RPM3/HPMS A30000/ A6000- AF Operation and Mai ntenance Man ual

Table 3. Summary of RPM3

Direct Funct ion K ey Operation

Direct Function Keys are active from the MAIN run screen

See corresponding manual secti ons for fu ll detail .

SETUP

SPECIAL

HEAD

SDS

AutoZ

RES

Menu of commonly used setup features including run LEAK CHECK.

Menu of less frequently used internal func tions and settings.

Set fluid head height.

SDS function is not used on RPM3 A30000/A6000- A F.

Runs AutoZ to rezero active range. In gauge mode, should only be used after assuring the system is vent ed and waiting two minutes.

View/adjust upper pres s ur e lim it alarm.

Adjust display resolution of measured press ur e and other indications and settings.

DISPLAY

RANGE

UNIT

MODE

ENTER

Select [DISPLAY] function for sec ond line of RPM3 display. Choices include <average>, <rate>, <other RP T>, <Hi /Lo>, <Deviation>,

<Freeze>, <Clean>.

View/Select ranges . Shows active range and then toggles through available ranges. Pressing [ENTER] on a range activates it.

Change pressure measurem ent unit. Choice of unit s c an be c us tomized.

Change pressure measurem ent mode (<gauge>, <absolute>).

ENTER data and/or run automated tes t/calibration sequenc e from MAIN RUN screen.

3.2.2 [RANGE]

m PURPOSE

To view and/or change the active pressure m eas urement range.

m PRINCIPLE

RPM3 A30000/A6000 has six ranges (see Section 3. 1.6). The [RANGE] key allows the range values to be viewed and a range selection to

be made. Most RPM3 settings such as pressure unit of measure (UNIT) and measur ement mode

(MODE), are range specific . Changes made while in one range apply t o that range only and do NOT affec t the other ranges ( s ee S ec tion 3.2.2).

m OPERATION

Pressing [RANGE] activates the range viewing and selecting function. Pressing [RANGE] again or [+/-] while in the RANGE funct ion steps through display s of available ranges: Lo to Hi.

RPM3/HPMS A30000/ A6000- AF Operation and Mai ntenance Man ual

When [RANGE] is first pressed, the active reference pressure transducer (RPT) and range are displayed:

psi 30000g/30000a

1. Identifies active RPT (Lo or Hi).

Identifies active range (1, 2 or 3) of t he act ive RPT.

Range designator.

Full scale pressure value in the current units for the

4. RPT and range when used in gauge (g) or absolute (a) mode.

Pressure unit of measure (the unit of measure

5. currently active for t his range) .

RPM3/HPMS A30000/ A6000- AF Operation and Mai ntenance Man ual

Pressing [RANGE] again or [+/-] causes t he screen to step through t he other available ranges in sequence Lo to Hi:

psi 6000g/6000a

1. Identifies RPT (Lo or Hi).

Identifies range of the RPT (1, 2 or 3) .

Range designator.

Full scale pressure value in the active units of

4. measure for the RPT and range number when used in gauge (g) or absolute (a) mode.

Units of measure (the unit of measure currently

5. active for the range).

Range full scale limits are given in the pressure unit that is currently active for that range.

Pressing [ENTER] while in the RANGE f unction causes the RPM 3 to attempt to change the active range t o the range currently displayed. The pressur e currently applied to the RPT with the new range m ust be lower than upper limit (UL) of t he new range for t he range change to be completed (see Section 3.2. 5) .

Any time a range change causes the active RPT to change, the HP MS Lo RPT I solation Valve must be operated to connect or disconnect the Lo RPT from the TEST port. The green Lo RPT Valve Position LEDs indicate the correct posit ion of t he Lo RPT Valve Isolation Knob based on t he RP M 3 range currently in use (s ee S ec tion 3.1.8).

Pressing [ESCAPE] while in the range funct ion returns to the main run screen without changing ranges.

The HPMS Lo RPT Isolation Valve protects the Lo RPT (6 000 psi max) from overpressure when the Hi RPT is in use. Familiarize yourself w ith HPMS operation (s ee Section 3.1.8) before changing ranges and applying pressures. Always turn the Lo RPT Isolation Va lve fully in the directio n o f the lighted green L E D before app lying p res s ure.

For a range change to occur, the pressure currently measured by the new range RPT must be less than the current up per limit (see Section 3.2.5) of the new ra nge. If this condition is N OT m et w hen a ra nge cha nge is attem p ted , a wa rning message is disp la yed and the range change is NOT co mpleted. Reduce the pressure app lied to the T EST p ort and reattempt the range change.

Running an automated test SEQUE NCE may change the ac tive range. The SEQUEN CE function autom a tica lly s ets the a ctive ra nge to the m o s t approp ria te ra nge based on full scale of the device under test (see Section 3.2.11).

RPM3/HPMS A30000/ A6000- AF Operation and Mai ntenance Man ual

Range Specific Functions and Settings

In general, RPM3 functions and sett ings ar e r ange s pec ific. They are s et and stored f or each range so that changing settings when in one range does NOT change settings in the other ranges. When returning to a range, settings are the same as they were when the range was left.

Functions and set tings that are NO T range specific are:

• Functions: HEAD (see Section 3.2.8), DISPLAY (see S ec tion 3.2.7).

• Setup Menu: <3ReadRt> (see Section 3. 3.3).

Running an automated test SEQUENCE may change the active range and the UNIT, STABILITY and RESOLUTION settings for the range. The SEQUENCE function automatically sets these parameters to the most appropriate values based on the characteristics of device under test (see Section 3.2.11).

In remote mode, most settings are RPT specific rather than range specific (see Section 4.3 ).

3.2.3 [UNIT]

m PURPOSE

To specify t he pr es sure unit of measure for the active r ange.

See also Section 3.2.3.

m PRINCIPLE

The RPM3 A30000/A6000 RP Ts have an evacuated and sealed ref erence so that they always measure absolute pr essure. RPM3 suppor ts extensive on-boar d measurement s and logic to precisely subtrac t at mospher ic press ure fr om absolut e press ure when gauge pressure measurements are desired. A separate on-board barometer and unique atmospheric compensation system are used to assure highly accurate gauge pressure values are provided even if atmospheric pressur e c hanges between zer oing opportunities (see Section 3.4.1, Gauge Mode with an Absolute RPT, Dynamic Compensation for Atmospheric Pressure). This allows simple, one step switching between gauge and absolute measurement modes without special pr oc edur es or hardware.

RPM3/HPMS A30000/ A6000- AF Operation and Mai ntenance Man ual

m OPERATION

To change the pressure meas urement mode for t he active range, pr es s [MODE]. The display is:

The cursor is on the number corresponding to the current m eas ur ement mode. Making a measurement mode selection returns to the main run screen with the selected mode active.

When going from absolute to gauge measurement mo de, the AutoZ function should be used to update the atmosp heric p ress ure offset (see Sections 3.2.10, 3.4. 1).

3.2.5 [UL] (UPPER LI MIT)

m PURPOSE

To set the upper pressure limit value f or the active range and measur em ent mode.

m PRINCIPLE

1absolute 2gauge

The UPPER LIMIT function provides the user with a settable pressure limit at which an alarm will sound.

When the upper limit is r eac hed the RPM3’s beeper sounds inter m ittently. The UPPER LIMIT function has two purposes. First, when UL is set t o its default value,

it serves as a warning that the maximum pressure of the active range is about to be exceeded. Second, UL can be set by the us er to a lower value t han the default value to provide an alarm that a specific pressure limit has been exceeded. This feature is often used to help protect an external device or system to which RPM3 is connected. For example, UL might be set just over t he full sc ale of a device under tes t (DUT ) that is being calibrated. The UPPER limit is set automatically by the SEQUENCE function when a sequence is run to protect the device under test from overpressure (see Section

3.2.11). Upper limit settings are specific to each range and measurement mode (gauge

or absolute).

The UL function is separate and different from the over-pressure (Pmax!) function. The Pma x! function is NOT adjustable a nd activates regardless o f UL setting when the maximum acceptable pressure for the active RPT range has been exceeded (see Section 3.2 .5.1).

RPM3/HPMS A30000/ A6000- AF Operation and Mai ntenance Man ual

m OPERATION

When [UL] is pressed from the main run sc reen the display is:

1. Edit field to view current upper limit value and modif y

30600 psi g

if desired. The value is always in the current unit of measure.

Enter the desired upper limit value and RPM3 returns t o the main run screen with the new upper limit value activ e.

When the upper limit has been exceeded, the display of cur rent pr essure f lashes and t he beeper sounds at two second intervals. Reduce the pressure applied to the RPT to lower than the upper limit to return to norm al oper ation.

Default upper limit values are 105 % of the range full scale for ranges 1 and 2 and 102 % FS for range 3. Upper lim it values m a y be ad justed b y the user. The a djusted value must be lower than or equal to the default value and higher than the current measured pressure.

Upper limit values are specific to ea ch range AND measurement mode. Do NOT assume that the upper limit se t in o ne m ea s urem ent mode will ap p ly to the other. Fo r example, if you set 3 000 ps i as the upper lim it in ga uge m o d e , the up per limit will NOT b e 3 000 psi in absolute m ode. The up per limit setting in o ne mode has NO affect on the up per lim it setting in another m o d e .

[RANGE] is disabled so ra nge changes ca nnot b e m a de w hen the upper lim it is ex ceed ed .

Running an automa te d te s t SE QUENCE with the SE QUENCE function a utomatically sets the UPPER LIMIT bas ed on the full scale of the device under te st. I t may b e neces sa ry to readjust the UPP ER LIMIT a fter running a SEQUENC E (see Section 3.2.11).

RPM3/HPMS A30000/ A6000- AF Operation and Mai ntenance Man ual

3.2.5.1 OVER-PRESSURE FUNCTION (<PMAX!>)

m PRINCIPLE

In addition to the UL (Upper Limit) function, RPM3 has an over-pressure function (Pmax!). Whereas the UL function is a settable alarm to assist the operator in monitoring a pressure limit, Pmax! is a fixed limit intended as a warning that the max imum pressure accept able for a range has been exceeded and damage to the RPM3 may be imminent. The Pmax ! f unction ac tivat es when the maximum acceptable pressure for the c urrent range on t he active or inac tive RPT has been exceeded.

m OPERATION

When the overpres s ur e function activates because Pmax! has been ex c eeded:

• The beeper sounds continuously at high frequency for 8 seconds.

<Rng “RR” RPT EXCEEDED PMAX> and overpressure value display toggles with normal run screen ( RR identifies the range that has exc eeded Pmax! (e.g., L1, H3).

• <!!!Pmax!!!> displays in the main run screen instead of the measured

pressure so long as the pressure read by the active RPT exceeds P m ax !.

• The [RANGE] key is disabled.

• The overpressur e c ondition is logged.

To recover from an overpressure c ondition, remov e the over pressur e source and then clear the overpressure condition by cycling RPM3 power using the soft [ON/OFF] key (see Section 3.1.4) or by disconnecting and reconnecting the power cable. The overpressure message will continue to display until the overpressure condition has been cleared by cycling power.

The overpressure function monitors both the active a nd inactive RPT. When a n overpressure occurs, check the <Rng “RR” RPT exceeded> message to determine which RPT and range has been overpressured.

Pmax! values are 110 % of the range full scale for ranges 1 and 2 and 104 % of the range full scale for range 3.

When Pmax! is exceeded, <!!!Pmax!!!> displays on the RPM3 display top line where the current pressure is normally displayed because the actual pressure applied can NO longer be indicated relia b ly.

RPM3/HPMS A30000/ A6000- AF Operation and Mai ntenance Man ual

3.2.5.2 LO RPT PROTECTION (<!!LO RPT ACTIVE!!>)

m PRINCIPLE

RPM3/HPMS A30000/A6000-AF has a special warning system to reduce the risk of overpressure to the Lo RPT. The warning system int errupts operat ion when a range on the Hi RPT is selected but the Lo RPT appears to be active (i.e., connected to the t est port). Since all the Hi RPT ranges include pressures that are high enough to overpressure and damage t he Lo RPT, if a Hi RPT range is selected, the Lo RP T should be shut off from t he TEST port by the HPMS Lo RPT Isolation V alv e.

If the RPM3 Lo RPT measures a pressure greater than 30 ps ig (200 kPa) AND a Hi RPT range (H1, H2, H3) is currently selected, t he Lo RPT is assumed to be active (connect ed to the TEST por t). If the Lo RPT is active and a HI RP T range is selected, the Lo RPT Active warning system activates. The Lo RPT Active warning system prevents further operation until pressure on the Lo RPT has been reduced to less than 30 ps ig (200 kPa).

m OPERATION

If the Lo RPT is ac tive and a range of the Hi RPT (H1, H2, H3) is selec ted:

• The RPM3 displays <!!LO RPT ACTIVE!!> and sounds two second

intermittent beeps.

• The red, Lo RPT A c tive WARNING LE D on the HPMS front panel flashes.

To cancel the warning condition, reduce pressure on the Lo RPT to less than 30 psig (200 kPa). Operation returns to normal.

See Section 3.1. 8.

The Lo RPT Active Warning may occur when the HPMS Lo RPT Isolation Valve is closed. If this o ccurs , there may be a leak thro ugh the Is o la tio n V a lve.

3.2.6 [RES] (RESOLUTION)

m PURPOSE

To set the res olution with which measured pressures and other indic ations and s ettings are displayed.

RPM3/HPMS A30000/ A6000- AF Operation and Mai ntenance Man ual

m PRINCIPLE

The resolution with which the pressure meas ured by RPM 3 is displayed c an be adjusted. This feature c an be used to reduce the resolution when lower precision measurem ents are being made and additional digits m ight confuse or distr ac t the operator.

The resolution setting det ermines the number of digits with which press ure is displayed. The desired resolution is calculated based on the full scale of the range and then rounded down to the nearest digit. For example, resolution of 0.01 % on a range of 18 000 psi is 18 000 x 0.01 % = 1.8 which is rounded down to 1 psi.

The default resolution setting is 0.001 % for each range. The maximum resolution setting is 0.0001 %.

m OPERATION

To access the resolution function, press [RES]. The display is:

Use the [

←←←←] and [→→→→] keys to select the desired level of resolution. Press [ENTER] to set

the resolution and return to the main run sc reen.

The resolution setting affects the display of the measured pressure as well as other indications and settings, such as quantities shown by DISPLAY functions (see Section 3.2. 7), the reading of the on-b oard barom e ter, etc.

The resolution setting is range specific. A resolution setting made in one range does NOT affect other ranges.

Running an automa te d te s t SE QUENCE with the SE QUENCE function a utomatically sets the RESOLUTION to the most appropriate value based on the characteristics of the device under test. It may be necessary to readjust the RESOLUTION after running a SEQUEN CE (see Sectio n 3 . 2.11).

RPM3/HPMS A30000/ A6000- AF Operation and Mai ntenance Man ual

3.2.7 [DISPLAY]

m PURPOSE

To select, from a variety of c hoices, the inform ation that is displayed on t he second line of the RPM3 display.

m PRINCIPLE

RPM3 supports a variety of advanced pressure measurement functions that are displayed on the second (bot tom) line of the RPM3 display . In summary, the available display functions inc luded ar e:

• AVERAGE: Calculates the aver age pressur e measur ed over a user specif ied period

of time and displays the average, the standard deviation about the mean and a countdown in seconds to the next average (see Section 3.2.7.1). This function is often used to filter out pressure noise in an unstable system. The magnitude of the noise is quantified by t he standard deviat ion about the mean. A sec ond Avg screen allows the instantaneous pressure values to be viewed during an averaging cycle.

• RATE: Calculates and displays the current rate of change of pressure in current

pressure units/ second (see Section 3.2.7.2) . This function is a useful indication of the stability of the pressure being measured. It is often used as an indication of positive or negative leak rat e and as a go/NO go crit erion of when t o t ake data when comparing RPM3 and a device under test , f or exam ple in a calibrat ion. Rat e is us ed by the Ready <*>/Not Ready (< condition exists ( s ee S ection 3.1.5).

↑↑↑↑> or <↓↓↓↓>) funct ion to det ermine when a Ready <*>

• DEVIATION: Calculates and displays the difference between the pressure

measured by RPM3 and a target pressure def ined by the user (s ee Section 3.2. 7.3). This function is useful in monitoring the evolution of pressure around and/or away from a desired set point.

• RPT: Allows the pressure measured by both the Lo and Hi RPT to be displayed

simultaneously (see Section 3.2.7. 4) .

• HI/LO: Records and displays maximum and minimum pressures measured (see

Section 3.2.7.5). This f unction is used to keep t rack of the minim um and maxim um pressure observed in a system over a period of time or to monitor whether a pressure min/m ax lim it has been exceeded.

• FREEZE: Captures and displays the pressure measured by the active range of

RPM3 when the [ENTER] key is pressed (see Section 3.2.7.6). This function is useful to record the pressure present at the time of an operator observed trigger event, for example when the needle of an analog gauge was on the nominal point or when a switch activates.

• CLEAN: Blanks out the second line of the display (see Section 3.2.7.7).

This function is used when a simple display of pressure measured by the RPM3 active range without additional information is des ir ed.

RPM3 also includes a lea k check function (see Section 3.3 . 5).

RPM3/HPMS A30000/ A6000- AF Operation and Mai ntenance Man ual

m OPERATION

To set the DI S P LA Y function press [DISPLAY] f r om the main run screen. The display is:

The cursor is on the active DISPLA Y f unction. Select ing a display f unct ion retur ns to t he main run screen with the selected funct ion ac tive.

See Sections 3.2.7.1 to 3.2. 7.7 for details on each DI S P LA Y function.

The DISPLAY s election is NOT range specific. A DISP LAY selection ma de in one range applies to a ll ra nges.

The default DISPLAY function is Rate which causes the second line of the display to show “R” followed by the current rate of change of pressure in current pressure units per second.

3.2.7.1 Avg (Average)

m PURPOSE

To activate the Average DISPLAY and/or adjust the period of time over which averaging occurs.

See Section 3.2.7, PRINCIPLE.

m OPERATION

To access the Average DISPLAY, press [DISPLAY] and select <1Avg>. The display is:

Edit the averaging time period if des ired. Press ing [ENTER] returns to the main run screen with the Average DISPLAY ac tive.

1. Edit field for averaging period in seconds.

Default is 20. Minimum 1, maximum 999.

RPM3/HPMS A30000/ A6000- AF Operation and Mai ntenance Man ual

With the Average DISPLAY act iv e the main run screen is:

1. Average measured over last completed

* 5001.6 psi g zH3

0.07 18Avg

averaging period.

Countdown in seconds until completion of

2. on-going averaging period.

Standard deviation of last completed

3. averaging period.

The Average DISPLAY has a second screen that allows the instantaneous pressure readings to be viewed while an averaging cycle is running. The instantaneous A v er age screen is:

1. Instantaneous pressure values at RPM3s normal integration rate.

Countdown in seconds until completion of

* 5001.4 psi g zH3

2. on-going averaging period.

Current rate of change of pressure in

pressure units/second.

The [+/-] key toggles between the main run Average screen and the instantaneous values A v er age s c reen.

In the Average DISPLAY the Ready <*>/Not Ready (<↑↑↑↑> or <↓↓↓↓>) indication applies to the result of the previo us avera ging p eriod . Ready <*> indicates that all readings during the p revious averaging p eriod met the sta bility criterion (see Section 3.3.4). Not Ready (<↑↑↑↑> or <↓↓↓↓>) indicates that one or more readings were outside of the sta b ility criterio n (See Section 3.1.5).

Changing the pressure unit o f meas ure, mea surement m od e (ga uge o r a bso lute) or range while the averaging sc reen is a c tive, s tarts a new a vera ging p eriod.

Pressing [ENTER] while in the Average DISPLAY aborts the current averaging period and causes a new one to begin. Pressing [ENTE R] can thus be use to trigger a new averaging perio d on demand.

To go to a DISPLAY other than Average, press [DISPLAY] and make a new DISPLAY choice (s ee Sectio n 3 . 2 . 7).

3.2.7.2 Rate

m PURPOSE

To activate the Rate DISPLAY.

See Section 3.2.7, PRINCIPLE.

m OPERATION

To activate the Rate DISPLAY press [DISPLAY] and select <2Rate>. Selecting <2Rate> returns to the main run scr een with the Rate DISP LA Y ac tive.

With the Rate DISPLAY activ e the main run screen is:

RPM3/HPMS A30000/ A6000- AF Operation and Mai ntenance Man ual

* 9999.75 psi g zH3

1. Current rate of change of pressure in current pressure units per second.

The Rate DISPLAY is different and sepa rate from the stability setting w hich is used to set the sta bility criterion on which the Ready <*>/Not Ready (<↑↑↑↑> or <↓↓↓↓>) indication is b ase d (see Sectio ns 3. 3. 4 and 3 .1. 5). The Ra te D ISPL AY only causes the current rate of change to be displayed and has NO affect on the stability setting or the Ready <*>/Not Ready (<↑↑↑↑> or <↓↓↓↓>) condition.

To go to a DISPLAY other than Rate, press [DISPLAY] and make a new DISPLAY choice (see Section 3.2. 7).

3.2.7.3 Dev (Deviation)

m PURPOSE

To activate the Deviation DISPLA Y and/or set the deviat ion target value.

See Section 3.2.7, PRINCIPLE.

m OPERATION

To activate the Deviation DISPLAY press [DISPLAY] and select <3Dev>. The display is:

Target:

RPM3/HPMS A30000/ A6000- AF Operation and Mai ntenance Man ual

Edit the desired t arget value. Pressing [ENTER] returns to the m ain run screen with the Deviation DI S P LA Y ac tive using the entered target value.

The target value is the value from which deviations (D) are measured by the Deviation D ISP LAY following:

D = current pressure - target pressure

With the Deviat ion DISPLAY activ e the main run screen is:

* 9999.85 psi g zH3

Pressing [ENTER] from the main run screen when the Deviation DISPLAY is active goes directly to the T arget editing s creen. This a llow s the ta rget va lue to be changed witho ut go ing through the DISPLAY m e nu.

If the pressure measurem ent unit or mod e (gauge or ab solute) is changed while the Deviation DISP LAY is a ctive the target value remains a t the same num erical value. It is NOT converted.

To go to a DISPLAY other than Deviation, press [DISPLAY] and make a new DISPLAY choice (s ee Sectio n 3 . 2 . 7).

3.2.7.4 RPT

m PURPOSE

1. Target value.

Deviation of current pressure from the target

value.

To activate the RPT DISPLAY.

See Section 3.2.7, PRINCIPLE.

RPM3/HPMS A30000/ A6000- AF Operation and Mai ntenance Man ual

m OPERATION

For the sake of clarity, when describing the RPT DISPLAY, the active RPM3 range when the RPT function is selected is referred to as the “active” range. This is the range that is displayed on the first line of the display. The other RPT and the range to be displayed on the second (bottom) line of the RPM3 display are referred to as the “inactive” RPT and range. It is “inactive” in the sense that all RPM3 functions and settings such as UNIT and RES still apply to the “active” RPT. To make changes to the “inactive” RPT, for example to change its measurement units, it must be made the active RPT by a conventional range change (see Section 3.2. 2 ).

The RPT display function can only be used effectively when the active range is a range on the Lo RPT. If the Hi RPT is the active RPT, the “Lo RPT Active Warning” will interfere as soon as pressure is increased on the Lo RPT (see Section 3.2.5.2).

To activate the RPT DISPLAY, press [DISPLAY] and select <4RPT>. The display is:

Select Hi RPT range:

1. Lo or Hi - whichever RPT is currently inactive.

Select the desired range of the inactive RP T. M ak ing the range selection returns to the main run scr een with the RPT DIS P LA Y ac tive.

With the RPT DISPLAY activ e the main run screen is:

* 2900.65 psi g zL3

1. Active RPT display.

Inactive RPT display.

With the RPT display active, executing a range change to a ra nge on the inactive RPT causes the range change to occur ma king the inactive RPT the active RPT. The DISPL AY defaults b a ck to Rate.

To go to a DISPLAY other than RPT, press [DISPLAY ] and make a new DISPLAY choice (see Section 3.2. 7).

RPM3/HPMS A30000/ A6000- AF Operation and Mai ntenance Man ual

3.2.7.5 Hi/Lo

m PURPOSE

To activate the Hi/Lo DISPLAY.

See Section 3.2.7, PRINCIPLE.

m OPERATION

To activate the Hi/Lo DISPLAY press [DISPLAY] and select <5Hi/Lo>. Selecting <5Hi/Lo> resets the Hi/Lo values and returns to the m ain run screen with the Hi/Lo DIS P LA Y ac tive.

With the Hi/Lo DISPLAY activ e the main run screen is:

* 8456.95 psi g zL2

The Hi/Lo values change each time a new Hi or Lo pressure is obs er v ed.

The Hi/Lo record can be res et at any time by pressing [EN TER]. This allows a Hi/Lo reset without going bac k through the DISPL AY m e nu.

If the pressure measurem ent unit, mode (gauge o r a b s o lute) o r ra nge is changed while the Hi/Lo D I SP L AY is active, Hi/Lo resets.

To go to a DISPLAY other than Hi/Lo, press [DISPLAY] and make a new DISPLAY choice (see Section 3.2. 7).

3.2.7.6 Freeze

m PURPOSE

1. Lowest pressure observed since Hi/Lo

reset.

2. Highest pressure observed since Hi/Lo

reset.

To activate the Freeze DISP LA Y .

See Section 3.2.7, PRINCIPLE.

RPM3/HPMS A30000/ A6000- AF Operation and Mai ntenance Man ual

m OPERATION

To activate the Freeze DISPLAY press [DISPLAY] and select <6Freez>. Selecting <6Freez> returns to the main run screen with the Freeze DISPLAY active.

With the Freeze DISPLAY active the main run scr een is :

1. Pressure measured by active range of

* 9999.13 psi g zH3

RPM3 when [ENTER] was pressed in the current pressure units (displays 0.00 by default when Freeze DISPLAY is first activated).

Pressing [ENTER] causes the cur rent pressure measured by the active RPM 3 range to be captured and displayed.

If the pressure measurem ent unit, mode (gauge o r a b s o lute) o r ra nge is changed while the Freeze DISPLAY is active, the Freeze value defaults back to zero .

To go to a DISPLAY other than Freeze, press [DISPLAY] and make a new DISPLAY choice (s ee Sectio n 3 . 2 . 7).

3.2.7.7 Clean

m PURPOSE

To activate the Clean DISPLAY.

See Section 3.2.7 PRINCIPLE.

m OPERATION

To activate the Clean DISPLAY press [DISPLAY] and select <7Clean>. Selecting <7Clean> returns to the main run screen with the Clean DISPLAY active.

With the Clean DIS P LA Y active the main run s c r een is :

* 25486.7 psi g zH3

1. Conventional main run screen first line.

“Clean” second line.

To go to a DISPLAY other than Clean, press [DISPLAY] and make a new DISPLAY choice (see Section 3.2. 7).

RPM3/HPMS A30000/ A6000- AF Operation and Mai ntenance Man ual

3.2.8 [HEAD]

m PURPOSE

To cause a pressure value representing a difference in height to be added to the pressure measured by the RPM3 reference pr es s ur e transducer (RPT ) .

m PRINCIPLE

RPM3’s RPTs measure gauge or absolute pressure at the height of the rear panel TEST port. F r equent ly, when performing a calibration or test, t he device or system under test is at a different height than the RPM3’s TEST port. This difference in height, frequently called head, can cause a significant difference between the pressure measured by the RPM3 at its TEST por t height and the pressur e actually applied to the device under test loc ated at a differ ent height. In t his case, it is usef ul to m ake a head correction to the pressure measured by the RPM3 RPT at its TEST port in order to accurately predict t he pressur e actually applied at a dif ferent height. T he HEAD f unction allows head corrections to be applied automatically for a variety of fluids based on operator entry of the nature of t he pr es s urized fluid and the height dif ference.

RPM3 can accurately determine head pressures f or gas (nitrogen, helium and air) and liquids (oil, water) as the press urized medium. In calculating the head value, standard gravity (9.80665 m/s correcting for temperature of 20°C and the measured pressure using the gas’s compressibility factor to 1 500 psi (10 MPa) and extrapolated above 1 500 psi. Above 1 500 psi, gas heads should be minimized to minimize uncertainties due to head corrections. Oil density is taken at 850 k g/m at 20°C. Wat er density is t aken at 998.2321 k g/m also be specified.

) is used. Gas densities are calculated from standard density

, the density of typical calibration oils

(20°C). A custom liquid density may

The [HEAD] funct ion key is used to specify t he difference in height between the RP M3 TEST port and the test . The height units and the head fluid ar e specified by pressing [SETTINGS] and selecting <1Head> (see Sec tion 3.3.1).

Use of the HEAD function to assure in tolerance measurem ents is particularly critical when a liquid is the tes t fluid due to the high density of liquids. To determ ine when, and how precisely, a head correction for liquids m ust be m ade, 0.03 psi/inch (90 P a/cm) m ay be used as an estimation o f the liquid head value.

RPM3/HPMS A30000/ A6000- AF Operation and Mai ntenance Man ual

Recommended Gauge Mode Head Settin g Procedure i n HGC 30000-AF

When using RPM3 A30000/A6000-AF in an HGC-30000-AF calibrat ion syst em operating in gauge mode, the recom m ended z er oing and head s etting procedure is as follows:

 Vent the syst em by opening the OPG 1 Exhaust Valve. This set s the oil head in the

system at the top of the OPG1 tank return tube (see the OPG1 Operation and Maintenance Manual).

 Wait at least two minutes for complete system stabilization and to be sure the

system is fully vented.

 Press [AutoZ] on the RPM3 keypad. This z eros t he RPM3 m easurement range and

sets the ref erence level to the top of the OPG1 t ank return tube.

 Measure the differ ence in height between the OP G1 tank r eturn tube and t he device

under test (DUT). Following the instructions under OPERAT ION imm ediately below, use this value as the head height. The head height is pos itive if the DUT is above the reference level and negative if below.

m OPERATION

To access the HE A D function, press [HEAD]. The display is :

Edit head height:

1. Test fluid currently specified for the head

correction.

Entry field for head height (1 to 999 cm or in).

Enter a positive value if the device under test is above t he ref erence lev el and a negative value if it is below the reference level. Entering a value of zero turns the HEAD function O FF. Entering a value other than zero turns t he HEAD function on using the height entered. Pr essing [ESCAPE] returns to the main run screen with NO change to the current head setting.

To change units of head height b etween inches a nd centimeters and to change the test fluid, press [SETUP] and select <1Head > (see Sectio n 3 . 3 . 1).

Reference

Level

(TEST Port or

AutoZ Level)

The head height should be entered as a po sitive value if the device or system under test is higher than the RPM3 a nd negative if it is low er. See the Recom mended Hea d Setting Procedure above for head setting in an HGC-30000-AF system (using an OPG1 oil pressure generator/co ntro ller.

The HEAD function is NOT range specific. The HEAD ON or OFF status remains the same as ranges are changed; edits made to the head specificatio ns are independent of range.

RPM3/HPMS A30000/ A6000- AF Operation and Mai ntenance Man ual

When the HEAD function is ON (head value different from zero), this is indicated by <h> in the right side of the top line of the main run screen (see Section 3.1.2). When the HEAD function is OFF, the <h> is NOT shown.

RPM3/HPMS A30000/ A6000- AF Operation and Mai ntenance Man ual

3.2.9 [SDS] (SELF DEFENSE SYST EM)

m PURPOSE

SDS is not present on RPM3 A30000/A6000-AF. It is only us ed on RPM3s wit h RPT s of A1500 or lower.

3.2.10 [AutoZ]

m PURPOSE

To run the AutoZ function that rezeros the acti v e r ange.

See Section 3.4.1, PRIN C I PLE for an explanatio n o f AutoZ principles.

To assure operation within “with autozero” measurement accuracy specifications (see Section 1.2.2.1), AutoZ should be run regularly to update the value of ZOFFSET. For absolute measurement mode, it is recommended that AutoZ be run at least every 30 days or when RPM3 has been exposed to tempera ture changes exceeding ± 20 ºC (36 ºF). Absolute AutoZ doesn’t need to be used if the RPM3 is not used for absolute mode measurements. For gauge measurement mode, it is recommended that AutoZ be run approximately once a day.

m PRINCIPLE

Run AutoZ is the f unct ion by which t he curr ent RPT r eading is c ompared to Z STD and a new value of ZOFFSET representing RPT zero drift is determined and applied (see Section 3.4.1) .

m OPERATION

To run AutoZ, press [AutoZ] from the main run screen. I f t he measurem ent mode of the active range is gauge, ZSTD is atmospheric pressure (zero gauge) and AutoZ runs automatically (see Section 3.2.10.1). If the measurement mode of the active range is absolute, the source of ZSTD must be specified when AutoZ is run (See Section

3.2.10.2).

Run AutoZ and the value of ZOFFSET that it updates are specific to each range and operating mo d e (gauge or abso lute).

3.2.10.1 RUNNING AUTOZ IN GAUGE MEASUREMENT MODE

m PURPOSE

To rezero the active RPT and range in gauge measurement m ode.

See Section 3.4.1 for an ex p la natio n o f AutoZ principles.

RPM3/HPMS A30000/ A6000- AF Operation and Mai ntenance Man ual

m OPERATION

If you are using RPM3 A30000/A6000 in an HGC-30000-AF system with an OPG1 oil pressure generation/controller, see Section 3.2.8, PRINCIPLE, Recommend ed Gauge Mode Head Se tting Procedure in HGC- 30000-AF before using the AutoZ function in gauge mode.

For the AutoZ function key to run AutoZ, AutoZ must be turned ON for the active range and measurement mode. AutoZ ON is indicated by <z> displaying to the left of the range designator on the first line of the main run screen. AutoZ ON and OFF is set by pres sing [SPECIAL] and selecting <1AutoZ> (see Sections 3.4.1 and 3.4.1.1). If AutoZ is OFF for the active range, and measurement mode, <AutoZ dis a b led> is d isp la yed w hen [AutoZ] is press ed .

To run AutoZ in gauge m easurem ent mode, press the [AutoZ] function key fr om the main run screen. <Running gauge AutoZ> is displayed briefly before returning to the main run screen.

Before running AutoZ in gauge mode, ensure that the pressure applied to the RPT is truly zero gauge (atmospheric pressure) and wait two minutes for full system stabilization. If running AutoZ in gauge mode results in a zero offset that RPM3 cons iders unusually large, <Confirm 0 gauge P !> is displayed w hen [AutoZ] is pressed. Check that the TEST port is fully open to atmosphere and press [E NTER] to continue or [ESC APE] to a bort. Running AutoZ without z ero pressure applied to the RP T m a y re s ult in o ut o f to le ra nce m ea s ure m ents .

If a HEAD correctio n is active a s indica ted by <h> in the first line of the d ispla y, RPM3 may NOT indicate zero even right after running AutoZ in gauge mode. The head correction is momentarily disabled when AutoZ is run. The value displayed just a fter RPM3 is zeroed is the va lue of the current head correction which is the p ressure ap plied a t the head height when the pressure at the RPM3 reference level is zero gauge (see Section 3 . 2 . 8 ).

3.2.10.2 RUNNING AUTOZ IN ABSOLUTE MEASUREMENT MO DE

m PURPOSE

To rezero (redetermine ZOFFSET) for the active RPT and range in absolute measurement mode.

See Section 3.4.1 for an ex p la natio n o f AutoZ principles.

RPM3/HPMS A30000/ A6000- AF Operation and Mai ntenance Man ual

m OPERATION

For the AutoZ function key to run AutoZ, AutoZ must be turned ON for the active range and measurement mode. AutoZ ON is indicated by <z> displaying to the left of the range designator on the first line of the main run screen. AutoZ ON and OFF is set by pres sing [SPECIAL] and selecting <1AutoZ> (see Section 3. 4.1.1). If AutoZ is OFF for the active range, and measurement mo de, <AutoZ disabled> is displayed when [AutoZ] is pressed.

To run AutoZ in absolute measurement mode, press [AutoZ] from the main run screen. The display is:

AutoZ H3 abs by:

1Entry 2COM2 3RngL3

1. Active range.

Current measurement mode ( gauge or abs

2. for absolute).

Selection of source of ZSTD for ZOFFSET

3. determination.

Selecting <1Entry> allows the value of Z STD to be ent ered from t he front panel keypad (see Section 3.2.10.2).

Selecting <2COM2> allows the value of ZSTD t o be read automatically f rom an RPM1, RPM2 or RPM3 connected to RPM3’s COM2 serial port (see Section 3.2.10.2).

Selecting <3RngL3> allows the value of ZSTD to be read autom atically f rom t he Lo RPT Range 3 (available only if the active RP T is a Hi abs olute RPT and ther e is a Lo absolute RPT) (see Section 3.2. 10.2).

Allow the RPM3 to stabilize at atmos pheric pressure and am bient temperature for 5 to 10 mi nutes before running AutoZ in a b s olute mode.

If running AutoZ results in values o f ZOFFSET that are greater than ± 0.015 % FS of the active RPM3 measurement range, the RPM3 and/or the source of ZSTD may be out of tolerance or the AutoZ process may have been faulty. Before activating a new ZOFFSE T greater than ± 0. 01 % FS o f the active RPM3 range, check to be sure that both the RPM3 and the source of ZSTD were in good working order, properly vented to stable atmospheric pressure, at the same reference height, a nd reading in the sam e pres sure units when Auto Z was run.

RPM3/HPMS A30000/ A6000- AF Operation and Mai ntenance Man ual

When the run AutoZ selection is m ade, if a HEAD co rrection is currently active (see Section 3.2.8), the head correction is temporarily disabled to avoid “zeroing out” the hea d correction.

The value of ZOFFSE T in absolute mo de is NOT necessa rily exactly equal to the difference between the current reading and ZSTD if ZNATERR is N OT zero (see Section 3.4.1). For the same reason, RPM3 may NOT read exactly the same value as ZSTD even right after AutoZ has been run.

Run AutoZ by Entry

AutoZ by entr y allows t he value of Z ST D (see S ection 3. 4.1) to be ent ered manually. This provides a simple way of autozeroing relative to an independent reference device such as a house barometer that does NO T interface directly with RPM3.

To access run AutoZ by entry press [AutoZ] from the main run screen while in absolute measurement mode. Then select <1Entry>. The display is:

14.14 psi a H3

Enter the value of ZSTD in the current units. The next display is:

1. Pressure reading, units and mode of the

active RPT range.

Active range indicator.

Entry field for the value of ZSTD.

Old ZOFFSET: 0.0 Pa

The old ZOFFSET is the ZOFFSET currently used. The new ZOFFSET is the ZOFFSET resulting from this execution of r un A utoZ. Press [ENTER] to activate t he new ZOFFSE T and return to the m ain r un s c r een. Press [ESCAPE] to maintain the old ZOFFSET and r eturn to the main run s c r een.

The value of ZOFFSET is always displayed and entered in Pascal (Pa).

The value of ZSTD must be entered in the current pressure units or the calculation o f ZOFFSET will b e inco rrect.

RPM3/HPMS A30000/ A6000- AF Operation and Mai ntenance Man ual

Run AutoZ by COM2

AutoZ by COM2 allows the value of ZSTD (see Section 3.4.1) to be read automatically f rom a DHI RPM1, RP M2 or RPM3 connected by RS-232 interface t o the RPM3 COM2 port.

To access <run AutoZ by COM2>, press [AutoZ] from the main r un screen while in absolute measurement mode. Then select <2COM2>. The display is:

14.14 psi a H3

When ready, press [ENTER]. The next

1. Pressure reading, units and mode of the active

RPT range.

Active range indicator.

Pressure reading of the RPM connected to RPM3’s

3. COM2 port.

Old ZOFFSET: 0.0 Pa

display is: The old ZOFFSET is the ZOFFSET currently used. The new ZOFFSET is the ZOFFSET resulting from this execution of r un A utoZ. Press [ENTER] to activate t he new ZOFFSE T and return to the m ain r un s c r een. Press [ESCAPE] to maintain the old ZOFFSET and r eturn to the main run s c r een.

For RPM3 to co mm unicate w ith an RP M co nnected to its C OM2 po rt, the RP M3 and the RPM RS-232 interfaces must be set up properly (see Section 3.4.4). If, the RPM3 is unable to locate an RPM ON COM2 when running AutoZ by COM2, it times out after 6 seconds and displays <RPM NOT detected>.

The value of ZOFFSET is always displayed and entered in Pascal (Pa).

Run AutoZ by RngL3

Run AutoZ by RngL3 allows AutoZ to be run on a Hi RP T range us ing Lo RPT r ange 3 (L3) as the source of ZSTD (see Section 3.4.1). This offsets the A30000 RPT ranges to agree the r ange L3 of the A6000 RPT.

To access <run AutoZ by RngL3>, press [AutoZ] from the main run screen while in absolute measurement mode. Then select [3RngL3]. The display is:

14.1 psi a H3

1. Pressure reading, units and mode of the active Hi

Active range indicator.

Pressure reading of Lo RPT range 3 (L3).

RPT range.

RPM3/HPMS A30000/ A6000- AF Operation and Mai ntenance Man ual

When ready, press [ENTER]. The next display is:

Before running AutoZ by Lo RP T, be sure that range L3 of the Lo RPT is correctly calibrated and autozeroed. Also assure that the HPMS Lo RPT isolation valve is open so that both RPTs are open to a common pressure.

If you are running AutoZ on the Hi and Lo RPTs of an RPM3 and using run AutoZ by RngL3 to a uto ze ro the Hi RP T , be sure to run Auto Z on the Lo RPT firs t.

The value of ZOFFSET is always displayed and entered in Pa.

3.2.11 [ENTER] RUN TEST SEQUENCE

Old ZOFFSET: 0.0 Pa

m PURPOSE

To run an automated test or calibrat ion s equenc e ( Quick Sequence or File S equenc e) .

m PRINCIPLE

RPM3 supports automated Sequences to assist in the testing or calibration of analog gauges and other pressur e s ens itive devices.

The Sequence funct ion is intended:

• To facilitate setting the RPM3 range, resolution, stability test and upper limit

appropriately for the DUT being tested.

• To step the operator through a planned sequence of test pressure increments

if desired.

• To alert the operator to possible out of tolerance conditions as each test point

is taken.

• To log test dat a in RP M 3 that can be viewed following t he test.

There are two t y pes of Sequences: Quick S equenc es and File Sequences.

• Quick Sequences: The DUT and t est paramet ers are enter ed “on the fly” during t he

initialization of t he test, then the test is executed if desired.

• File Sequence: The DUT and test parameters are stored in a file (see

Section 3.3.6.2) and retrieved when a DUT is to be tested.

RPM3/HPMS A30000/ A6000- AF Operation and Mai ntenance Man ual

Sequences operation is oriented towards running t ests in which the pr essure is set t o the DUT cardinal point indicat ion and then the actual ref er enc e pressure pr es ent is r ead from the RPM3.

Sequence Settings and Calculations

The data required to init ialize a s equence is either ent ered “on the f ly” (Quick Sequence) or retrieved f r om a file (File Sequence). The data items required are:

• Pressure measur em ent mode (gauge or absolute).

• Pressure unit of measure.

• DUT full scale in press ur e unit of measure.

• DUT tolerance in ± % FS ( full scale).

• Test increment in % FS (Quick Sequence) or number of test increments and the

value of each increment in the pressure unit of measure (File Sequenc e) .

• Test point sequenc e: ascending, descending or both (Quick Sequence only) .

The initialization data is used to det ermine and automatically s et the RPM3 for t he DUT and test to be run. At the end of the sequence initialization, the RPM3 is set as f ollows:

• Range: The lowest range that is greater than the maximum pressure in

the Sequence.

• Pressure measur em ent mode and unit: As spec ified in the Sequence initialization.

• Display resolution: The DUT tolerance, divided by 10 and rounded to the

nearest digit.

• Stability tes t: The DUT t oler anc e, divided by 10 (see Section 3.3.4).

• Upper limit (UL): The DUT full scale plus 5 %, or maximum UL, whichever is less

(see Section 3.2.5).

To make the RPM3 adjus tments but not execut e a test s equence, the Sequenc e can be aborted just aft er the initialization. T hen the proper settings f or the DUT are made but the Sequence increments don’t execute.

See OPERATION in this S ec tion for information on running a Quick or F ile S equenc e. See Section 3.3. 6.2 for information on setting up File Sequenc e files. See Section 3.3.6.1 for information on viewing the data files that result from running

a Sequence.

RPM3/HPMS A30000/ A6000- AF Operation and Mai ntenance Man ual

m OPERATION

To run a Sequence, pres s [ENTER] from the Rate,

Run sequence:

RPT or Clean run scr een; display m odes that do not use [ENTER] (see Section 3.2.7). The dis play is :

Select <1QukSeq> t o run a Quick S equence or <2FileSeq> to run a file sequence (see PRINCIPLE above in this Sect ion) .

If <2FileSequence> is selected, the F ile Sequence file number m ust be specif ied (see Section 3.3.6.2). The test is initialized automatically using the information in the File Sequence file and test execut ion begins with the < SET VALVE FOR RNG> scr een (see Section 3.2.11.2).

If <1QukSeq> is selected, test initialization begins with the <Measurement mode?> screen (see Section 3.2.11.1).

3.2.11.1 TEST INITI AL IZATION (QUICK SEQUE NCE)

When running a File Sequence, the t est init ializat ion inf ormat ion is obtained fr om the file selected. Operation proceeds direc tly to test ex ec ution (see Section 3. 2.11.2).

When a 2QukSeq is selected to run a Quick Sequence, the test initialization information must be entered. The information is entered in successive screens as follows:

• <Measurement mode?>: Select <1gauge> or <2absolute> depending on the

measurement mode of the DUT being test ed.

• <Pressure un its of measure?>: The units of measure scr een from the [UNIT]

function key is presented. Select the desired pressure unit of measure for the Sequence. The c hoic e of units may be modif ied ( s ee S ec tions 3.2.3, 3.3.2).

• <DUT full scale?>: Enter the full scale pressure (maximum pressure) of the

DUT in the measurem ent mode and pressure units that have been specified in the previous two steps.

• <DUT tolerance?>: Enter the DUT measurement uncertainty, accuracy or

precision specification as desired in

± % FS (percent of full scale). T his value will

be used to determine proper RPM3 resolution and stability test settings (see Section 3.2.11, PRINCIPLE).

• <Test increment?>: Enter the test increment in % FS of the DUT.

When executing the test, the test increments will be from zero to the DUT full scale, dividing by the v alue of the increment. If a non- even increment v alue is entered, the actual increments will be rounded to the lower number of increments. F or example, if the DUT full scale is 10 000 psi and t he increment specified is 42 %, the Sequence will run points of 0, 5 000 and 10 000 psi because 42 % goes into 100 less t han three but more than two times.

RPM3/HPMS A30000/ A6000- AF Operation and Mai ntenance Man ual

• <Test point sequence?>: Select <1up> for the Sequence to run fr om zero to

the DUT full scale; select <2up&down> for the Sequence to run from z er o to t he DUT full scale and back to zero; select <3down> for the Sequence to star t at the DUT full scale and run down t o z er o.

Following Sequence initializat ion, t he RPM3 changes RPM3 set tings bas ed upon t he DUT characteris tics (see Sect ion 3.2.11, PRINCIPLE) and the Sequence proceeds to text exec ution (see Section 3. 2.11.2).

3.2.11.2 TEST EXECUTION (QUICK SEQUENCE AND FILE SEQUENCE)

Following test init ializ ation (see Section 3. 2.11.1), test execution begins. The first step of test execution is to set the

HPMS Lo RPT isolation valve correctly for the

SET VALVE FOR RNG H1

RPT and range that will be used by the test ( see Section 3.1.8) . The RPM3 display is:

Set the HPMS is olation valve to s hut off or use the RPM3’s Lo RPT as indicated by the HPMS valve indicator LED (see Sect ion 3.1.8). Tur n the valve knob completely to its stop towards the lit valve indicator LED. If using an OPG1 to generate and adjust pressure, set the O PG1 dr ive regulat or so t he hydropneumat ic pump out put is lower that the DUT full scale (see the OPG1 O peration and Maintenance Manual). Press [ENTER] when ready to proceed with t he test.

Press [E SCAPE] from the <SET VALVE FOR RANGE …> to abort the tes t but use the RPM3 with the settings for the DUT that wa s initialized. T his can be useful fo r setting up the RPM3 to make DUT adjustments or run tests other than the one defined by the Sequence.

The display is:

*0.00 psi g zL3

The top line is the standard RPM3 run screen indicating the current measured pressure (see Section 3.1.2). Exercise the DUT if desired using the top line indication of the measured pressure and press [ENTER] when com plete.

The display is:

*0.00 psi g zL3

1. Conventional RPM3 main run screen indicating

current measured pr essur e ( see Section 3. 1. 2) .

Number of this test point/the total number of

test points in the sequence.

<QS> indicating a Quick Sequence is being run

or <FS> indicating a File Sequence is being run.

Pressure to set for this increment in current

pressure unit of measure and measurement mode.

RPM3/HPMS A30000/ A6000- AF Operation and Mai ntenance Man ual

Adjust the press ure to the <Set nnnn> value indicated. Set the pressure so th at the DUT, NOT the RPM3, indicates the <Set nnnn> value.

Once the desired pressure has been set, press [ENTER]. If the RPM3 pressure reading is in Not Ready condition (see Sect ion 3.1.5), the RPM3 makes an invalid entry sound and displays <Pressure NOT READY, TRY AGAIN>. Correct the conditions that ar e causing the RPM3 reading t o be excessively unstable and press [ENTER] again. If the RPM3 pressure reading is in Ready condition, the RPM3 makes a valid entry sound and the display is:

* 2998.25 psi g zL3

4. <OT> present only if the captured RPM3 r eading was out of t olerance ( def inition of out of tolerance is Set point - RPM3 reading > DUT tolerance).

5. <F> to indicate freeze (see Section 3.2.7. 6) followed by the RPM3 pressure reading in current units of measure captured when [ENTER] was pressed in the previous <Set> screen. This is the ref erence pressure that was present on the DUT when the DUT indicated the cardinal point. The frozen pressure value flashes if the reading was out of tolerance (definition of out of tolerance is: Set point - RPM3 reading > DUT tolerance).

1. Conventional RPM3 main run screen indicating current measured pr essur e ( see Section 3. 1. 2) .

2. Number of this test point/t he total num ber of t est points in the Sequence.

3. <QS> indicating a Quick Sequence is being run

or <FS> indicating a File Sequence is being run.

Press [ENTER] to acc ept this t est point and proc eed to the next test point or [←

←] to

←←

repeat the point. Repeat the set pressure, take reading and accept dat a procedure until all points in

the sequence have been accept ed. After the las t pressure point in the sequence has

been accepted the display is :

Sequence complete:

Select <1data> to view the data collec ted in the Sequence that was just completed (see Section 3.3.6.1).

Select <2new> to run a new Quick or File Sequence. Select <3repeat> to r epeat the sequence that was jus t completed. Press [ESCAPE] to return to the main run screen.

RPM3/HPMS A30000/ A6000- AF Operation and Mai ntenance Man ual

3.3 [SETUP] MENU KEY

m PURPOSE

The [SETUP] key accesses a menu of commonly used RPM3 functions and features that do NOT have direct function keys.

• <Head> - To change the height units and fluid (see Section 3.3.1).

• <PresU> - To customize the choices available under [UNIT] and to set up User Defined

Units (see Sect ion 3.3.2).

• <ReadRt> - To turn ON and OFF RPM3’s automated, rate of change dependent, reading

integration time feature (see Section 3.3.3).

• <Stab> - To view and adjust the stabilit y limit that is the criterion for the Ready/No t Ready

condition (see Sections 3.3.4 and 3.1. 5) .

• <Leak> - To run an automated leak c hec k ing function (see Section 3.3.5).

• <Seq> - To view data collected fr om a Sequence run and/or to view and edit F ile Sequence

files (see Sect ion 3.3.6 and 3.2.11).

m OPERATION

To access the S ETUP menu, press [SETUP] from the m ain run screen. The display is:

Select the desired S E TUP function. Select <1Head> to s elec t head unit of measure and fluid (see Section 3.3.1). Select <2PresU> to cust om iz e the UNIT function (see Section 3.3.2). Select <3ReadRt> t o turn the automat ed r ead r ated function ON and OFF (see Section 3.3.3). Select <4Stab> to adjust the stability limit (s ee S ec tion 3.3.4). Select <5Leak> to r un a leak test (see Section 3.3.5). Select <6Seq> to read Sequence data or create/edit a File Sequence file (s ee S ec tion 3.3.6).

1Head 2PresU 3ReadRt

3.3.1 HEAD

m PURPOSE

To specify t he c onfiguration of the HE A D function (see Section 3.2.8) inc luding the length unit of measure for head height entry and t he test fluid for head pr es s ur e c alc ulations.

RPM3/HPMS A30000/ A6000- AF Operation and Mai ntenance Man ual

m OPERATION

From the main run screen, press [SETUP] and select <1Head>. The display is:

Select the desired head height unit. The next display is:

If <1Gas> is selected, the display offers t he choice of three gasses. Making a gas selec tion returns to the main run screen with that gas active for the HEAD function.

If <2Liquid> is selected the display offers the choice of oil, water or a user defined liquid. If the user defined liquid is selected, its density must be specified. Making a liquid selection returns to the main run screen with that liquid active for the HEAD function.

3.3.2 PresU

m PURPOSE

To customize the selection of pressure units that are available for selection from the UNIT funct ion k ey .

Head height unit:

Head medium:

Gas type:

Liquid type:

m PRINCIPLE

The [UNIT] function key makes available a choice of five default pressure units (see Section 3.2.3). RPM3 also supports many commonly used units in addition to those included in the default set up. These units can be made av ailable for act ive selection by customizing the UNI T funct ion by pressing [SETUP] and selecting <2PresU>. Up to six units may be set up. This allows RPM3 to offer a very wide selection of units while simplifying day to day operation.

m OPERATION

To customize the UNIT function key, from the main run screen press [SETUP] and select <2PresU>. T he dis play is :

Setupuserunit#6

Enter the number of the unit pos ition that you would

1. Entry field to select which unit position (1 - 6) of the UNIT function key menu is to be changed.

Unit#6 1SI 2other

like to change. The dis play bec omes: Select the desired pr essur e unit cat egory ( see Table 4) , t hen select the desir ed unit f rom

the unit menu.

RPM3/HPMS A30000/ A6000- AF Operation and Mai ntenance Man ual

Table 4. PresU - Available Units

<1SI> <2other> <4user>

<1Pa>

<2kPa>

<3mPa>

<4mbar>

<5bar>

<6mmHg>

<7mmWa>

<1psi> <2psf>

<3inHg> <4inWa> <5kcm2>

<1user>

See Section 7.1 for the pressure unit conversion factors used by RPM 3.

If <4user> is s elec ted, the user unit m us t be defined. The display is :

Define user unit:

Enter the number of user units per Pascal (Pa) in the entry field. Pressing [ENTER] defines the user unit and returns to the <Set up unit #> screen.

The user defined unit can be assigned a user defined la bel using the UNIT: USER remote command (see Sectio n 4 . 4 .2.).

3.3.3 READRT (READ RATE)

m PURPOSE

To turn ON and O FF RPM3’s automat ed, rate of c hange dependent, reading integrat ion rate feature.

m PRINCIPLE

To obtain maximum resolution from RPM 3 RPT pressure measurements, an integrat ion time of about 1 second per r eading is used. In most situations , maximum precision is needed when pressures are stable so a relatively slow reading rate presents no disadvantage. However, when pressure is changing quickly, more rapid pressure updates are usually more important than obtaining maximum resolution on individual readings. The RPM3 read rate function automatically adjusts pressure measurement integration time depending on the rate of change of pressure. When pressure is c hanging r apidly , reading rate is increased. When press ur e is evolving slowly, reading rate is dec r eas ed.

1. Entry field.

When the automat ed read rate f unction is ON, three press ure rate of change dependent read rates are used. The result is t hr ee dis play update rates (see T able 5) .

Table 5. READRT - Display Update Rates

RPM3/HPMS A30000/ A6000- AF Operation and Mai ntenance Man ual

PRESSURE

RATE OF CHANGE

> 3 % FS/s Between > 0.5 and < 3 % FS/s < 0.5 % FS/s

DISPLAY

UPDATE

≈0.2 s ≈0.5 s ≈1 s

For situations in which changes in the reading rate are NOT desired, the RPM3 automated read rate function can be tur ned OFF. I n this cas e, the reading rate is always the high resolution rate of about 1 reading per second.

Auto read rate should always be left ON in normal operation.

m OPERATION

To turn the automated read rate function ON or OFF press [SETUP] and select <3ReadRt>.

The display is:

Auto read rate: H3

1on 2off

The cursor is on the current select ion. Selecting <1on> activates the automated reading rate and returns to the main run

screen. Select ing <2off> turns OFF the automat ed reading rate and ret urns to t he main run screen.

The default RPM3 c ondition is auto read rate ON.

Auto read rate ON/OF F is NOT ra nge specific. Turning a uto read rate ON o r OFF in o ne range turns it ON or OF F fo r a ll RPM3 ranges.

3.3.4 STAB (STABILITY)

m PURPOSE

To view and/or adjust the stability test that is the Ready <*>/Not Ready (< criterion for the active RPT and range.

See Section 3.1.5.

↑↑↑↑> or <↓↓↓↓>)

RPM3/HPMS A30000/ A6000- AF Operation and Mai ntenance Man ual

m PRINCIPLE

RPM3 continuously monitors the rate of c hange of pres sure meas ured by t he activ e RPT and range and compares this r ate to the stabilit y limit to make a Ready <*>/Not Ready (<

↑↑↑↑> or <↓↓↓↓>) determ ination (s ee Sect ion 3.1. 5). T he st ability f unction allows t he s tabilit y

limit to be adjusted by the user to inc rease or dec rease t he stabilit y requir ed for a Ready <*> condition to occur.

The default stability lim it is ±±±± 0.005 % F S of the active range.

The stability limit is separate and different from the Rate DISPLAY function (see Section 3.2. 7.2) which allows the current ra te o f cha nge o f p ress ure to b e d is p la yed .

m OPERATION

To adjust the stability limit pres s [SETUP] and select <4Stab>. The display is:

Stability limit: H3

1. Entry field for setting the desired stability limit.

Recalls the default stability limit or the last custom stability limit for the active range in the current pressure units f or that range.

Edit the desired st ability limit setting if desired. Pres sing [ENTER] activat es the stability limit for the range and returns to t he m ain run screen.

The stability setting is range s pecific. Changes made in o ne range do NOT affect any other range.

Running an automa ted test se quence using the SEQUE NCE function autom atically sets the stability limit based on the characteristics of the device under test. After running a sequence, the stability lim it m a y need to b e rea djus ted (see Section 3.2.11).

RPM3/HPMS A30000/ A6000- AF Operation and Mai ntenance Man ual

3.3.5 LEAK (LEAK CHECK)

m PURPOSE

To run an automated leak check routine using RPM3 to measure the total pressure change and average rate of change over a period of time; to edit the leak c hec k time.

m PRINCIPLE

The Leak Check function is provided to assist in using RPM3 to measure leaks by measuring pressure r is e or dec ay .

The principle of the leak check function is the measurement of pressure increase or decrease. The Leak Check function allows a leak check time to be set. The total pressure change and the aver age rat e of change ov er the leak check t ime are c alculated and displayed.

Changing the pressure in a tes t system ca uses adiabatic tem perature changes in the gas that must have dissipated before a valid leak mea surement ca n be m ade. In general, a 0.5 to 1 minute wait before running a leak check is adequate to allow the adiabatic temperature change to dissipate and valid leak measurements to be made. However, stabilization time may be much longer with liquid test media, as volumes increase and as pressures increase.

m OPERATION

To access the LEAK function press [SETUP] and select <5Leak>.

Leak Check H3

The display is:

1run 2view

Select <2view> to view the results of the last leak check executed. Results screen displays <Data NOT availab le> brief ly and returns to main run scr een if NO leak check data is stored (e.g., if t he RP M 3 has nev er run a leak test or a reset has cleared previous leak test results). Pressing [ENTER] or [ESCAPE] returns to the main run screen.

Leak check is range specific in the sense that the leak check is run using the active range. However, only o ne set of leak check results is ma intained in memory and each leak test completed overwrites the last results. View leak check always shows the results of the last leak check run regardless of the range that is now active. The results screen includes the range indicator to indicate the range in which the leak check was run.

Select <1run> to run a leak check and/or to edit the leak check time. The display is:

Set leak check time:

1. Edit field for leak check time in seconds (1 min,

999 max).

RPM3/HPMS A30000/ A6000- AF Operation and Mai ntenance Man ual

Edit the leak check time if desired. P r es s [ENTER] to run leak test. The display is:

9995.7 psi g zH3

1. Standard main run screen first line.

Indication that leak test is running and

2. countdown of time remaining.

Pressing [ESCAPE] during the countdown offers a leak check abort option to return to the main run screen or continue leak test. Pressing [ENTER] during the leak check countdown causes the c ountdown to reset.

Once the leak check c ountdown has completed, the results screen is displayed:

P -0.3 psi H3

∆

1. Net change in pressure over the leak check t ime period.

Indicator of range in which leak check was run.

Average rate of change of pressure over the

3. leak check time period.

Pressing [ENTER] from the leak check results screen following execution of a leak c hec k starts a new leak check routine directly without having to go through the leak check menu. Pressing [ESCAPE] ret ur ns to the main run screen.

Pressing [ENTE R] while counting down a lea k check or w hen in leak check results screen starts a new leak check sequence.

3.3.6 SEQ

m PURPOSE

To view data collected from running a Sequence and/or to view and edit File Sequence files.

See Section 3.2. 11, PRINCIPLE for information on the SEQUENCE function.

m OPERATION

To access the S E Q menu press [SETUP] and select <6Seq>. The display is : Select <1data> to view a Sequence data file (see

Section 3.3.6.1). Select <2FileSeq> to view or edit a File S equence

file (see Section 3.3.6.2).

Sequence:

1data 2FileSeq

RPM3/HPMS A30000/ A6000- AF Operation and Mai ntenance Man ual

3.3.6.1 Sequence, Data

m PURPOSE

To view the data f iles that are created when a S equenc e is r un.

m PRINCIPLE

RPM3 supports automated Test Sequences (see Section 3.2.11). When a Sequence is run, the RP M3 pressure m easurement accepted by t he operat or at each point is logged. The logged pressure measurements and an identifying header are stored in a data file. The data file can be viewed immediately following the last point of the sequence by selecting <1data>. In addition, the last ten data files recorded can be viewed anytime by pressing [SETUP] and selecting <6Seq>, <1data>.

Data File Protocol

Up to ten data files are buffered, ten at a time, in RPM3 m emory. When a new Sequence run is completed, its data file goes to front of t he queue and the oldest data file is deleted.

Data files are identif ied by a header whose first line is the full sc ale of t he DUT and the number of test points in the Sequence. The second line is the date (YYYYMMDD) and time (HH:MM:SS) at which the last point of the sequence was accepted.

Following the data file header, eac h test point is recorded including t he pressure reading of the RPM3 wit h head, AutoZ and range stat us as well as an indication of whether the reading was out of tolerance and the test point number over the total number of test points in t he S equenc e.

m OPERATION

To access the Sequence data file viewing function press [SETUP] and select <6Seq>, <1data>.

The first display is the data file header which can be used to toggle through data files:

10000 psi g 6/6

1. Full scale of the Sequence DUT with

pressure unit of measure and measurement mode.

Number of test points executed/total

2. number of points in the Sequence.

Date and time that the last point in the

3. Sequence was executed.

RPM3/HPMS A30000/ A6000- AF Operation and Mai ntenance Man ual

Press [+/-] or [→

→] to scroll through the headers of the other Sequence data

→→

files available. RPM3 stores up t o ten Sequence dat a files in order of exec ution with a new data file pushing all the files back and deleting the oldest one. When the header of the Sequence data file you would like to view appears , press [ENTER] to view the first point of the ident ified Sequence.

The display is:

0.000 psi g hzL3

4. <QS> indicating that the Sequence was a Quick Sequence or <FS> indicating a File Sequence. This is preceded by <OT> if the test point was out of tolerance (definition of out of t olerance is Set point – RPM3 r eading > DUT tolerance).

5. Indication that this is a Sequence data file view screen.

Press [ENTER] to move to the next data point. Pressing [←

1. RPM3 reading logged for the test point.

2. Head, AutoZ and range indicator (same as in the RPM3 main run screen) (see Section 3.1.2).

3. Number of this test point or target pressure over total number of points in the Sequence.

←] or [→→→→] allows

←←

scrolling backward and forward t hrough the test points. The data file header is between the first point and the last point.

Press [ESCAPE] to exit the data file. Confirm ation is required to exit the data view function.

Up to ten data files are b uffered, ten at a tim e, in RPM3 memory. W hen a new Sequence run is completed, its data file goes to front of the queue and the oldest data file is deleted.

3.3.6.2 Sequence, FileSeq

m PURPOSE

To view and edit File Sequenc e definition files.

m PRINCIPLE

RPM3 supports automated Sequences (see Section 3.2.11, PRINCIPLE). There are two t y pes of Sequences:

• Quick Sequences in which t he DUT and t est par amet ers are enter ed “on t he

fly” during the initialization of t he test.

• File Sequences in which the DUT and test parameters are stored in a file

and retrieved when the file is selected to run a File Sequence.

RPM3/HPMS A30000/ A6000- AF Operation and Mai ntenance Man ual

File Sequence parameters are stored in Sequence definition files. Pressing [SETUP] and selecting <6FileSeq>, <2FileSeq> allows File Sequenc e definition files t o be viewed and edited. Up to 40 File Sequence definition files with up to 21 test points in each file can be created.

A File Sequence definit ion file defines:

• The identifying number of the File Sequence definition file.

• Pressure measur em ent mode (gauge or absolute).

• Pressure unit of measure.

• DUT full scale in press ure unit of measure and meas ur ement mode.

• Number of test points or pressure targets to include in the Sequence.

• Numerical value of each test point or press ur e target.

See Section 3.2.11, OPERATION for information on running a Quick or File Sequence.

See Section 3.3.6.1 for information on viewing the data files that result from running a Sequence.

m OPERATION

See Section 3.2.11, OPERATION, for information on RUNNING a Quick or File Sequence.

To access the S equence definition viewing and editing functions press [SETUP] and select <6Seq>, <2FileSeq>. Select <1view> to view a Sequence def inition file. Select <2edit> t o edit a S equence def inition f ile. When <2edit> is selected the display is:

Select FileSeq #:

Enter the number ( 1 - 40) of the FileSeq to be edited. The display is:

Measurement mode:

Select the desired pressure measurement mode for the Sequence (see Section 3.2.4) .

The display is:

1psi 2MPa 3kPa FS

RPM3/HPMS A30000/ A6000- AF Operation and Mai ntenance Man ual

Select the desired pressure unit of measure for the Sequence. The unit of measure selection screen is the current [UNIT] selection screen (see Section 3.2.3) . Select the desir ed pr es s ur e measurement unit f or the Sequence.

The display is:

DUT full scale?

Enter the full s cale press ure of t he DUT t o be calibrat ed with t his File Sequenc e. The value entered will be used along wit h the DUT toleranc e to det ermine RPM 3 function settings when the Sequence is run ( s ee S ec tion 3.2.11, PRINCIPLE).

The display is:

DUT tolerance?

Enter the tolerance (measurement uncertainty, pr ecision or accur acy as desired) in % of full scale press ure of the DUT to be calibrated using t his F ile Sequence. The value entered will be used along with the DUT full scale t o determine RPM 3 function settings when the Sequence is run ( s ee S ec tion 3.2.11, PRINCIPLE).

The display is:

Number of targets?

Enter the total number of pressure points or target pressures to be included in the S equence. The maximum number of points is 21. If data is to be t aken at “zero” pressure, include the “zero” points in the point count.

The display is:

Pressure target N:

Enter the numer ical value of the target pressure point <N>. Repeat until all of the points in the Sequenc e hav e been defined.

After entering the last target pressure, the

Save as FileSeq #:

display is: Enter the identifying number under which this Sequence definition file should

be saved. A confir mation is required to over wr ite and existing sequence. Press [ESCAPE] to abandon the File Sequence f ile edits.

To create a Sequence File similar to a n exis ting Sequence F ile, w ithout reentering all the Sequence information, edit an existing Sequence File and at the end o f the editing process, s a ve it und er a d ifferent Sequence File number.

RPM3/HPMS A30000/ A6000- AF Operation and Mai ntenance Man ual

3.4 [SPECIAL] MENU KEY

m PURPOSE

Pressing [SPECIAL] accesses a menu of RPM3 functions and set tings that are less c ommonly or NOT normally us ed in r egular oper ation. These include:

• <AutoZ> - Turn AutoZ O N/OFF, v iew and edit ZOFF S E T values (see Section 3.4.1).

• <SDS> - SDS is not used in RPM3 A30000/A6000- A F.

• <ATM> - View the current reading of the on-board baromet er ( s ee S ec tion 3.4.3).

• <Remote> - Set up RPM3 RS-232 (COM) and IEEE-488 (GPIB) interfaces (see

Section 3.4.4) .

• <Reset> - Ac c ess and execute a number if r es et options (see Section 3.4.5).

• <Cal> - View and adjust RPM3 RPT and barometer calibration coefficients (see

Sections 5.3, 5.2.2).

• <Intern> - View and set screen saver, keypad sounds, time and ID features (see

Section 3.4.7) .

• <Level> - View and change User Level prot ec tion of RPM3 functions (see Section 3. 4.8).

• <Log> - View the RPM3 incident log and run time clock ( s ee S ec tion 3.4.9).

m OPERATION

To access the SPECIAL menu, press [SPECIAL] f r om the main run screen. This display is:

1AutoZ 2SDS 3ATM

7Intern 8Level 9Log

Some screens, such as the SPEC IAL menu go beyo nd the two lines provided by the display. This is indicated by a flashing a rrow in the second line o f the display. Use the [←←←←] and [→→→→] keys to move the cursor to access the lines that are NOT visible or directly enter the number of the hidden menu choice if you know it.

Select <1AutoZ> to turn the AutoZ func tion ON/OFF and view /edit ZOFFSET ( s ee Section 3.4.1) .

↓

<2SDS> is not activ e as RP M3-30000/A6000 does not include the SDS function. Select <3Atm> to view the current r eading of the on-board baromet er (see Section 3.4.3). Select <4Remote> to set and adjust RPM3 remot e c om m unic ation interfaces ( s ee S ec tion

3.4.4).

RPM3/HPMS A30000/ A6000- AF Operation and Mai ntenance Man ual

Select <5Reset> to use r es et functions (s ee S ec tion 3.4.5). Select <6Cal> to view/edit RPT and barometer c alibr ations (see Section 3.4.6). Select <7Intern> to change user operating preferences (see Sec tion 3.4.7). Select <8Level> to change the securit y lev el ( s ee S ec tion 3.4.8). Select <9Log> to view the incident log and run time clock (see Sect ion 3.4.9).

3.4.1 AutoZ

m PURPOSE

To manage the AutoZ function for the active RPT and range including turning AutoZ ON/OFF, viewing and editing Aut oZ values.

To run AutoZ (rezero the RPT range), use the [AutoZ] direct function key (see Section 3.2 .10).

m PRINCIPLE

How Auto Z Works

The main component of the change over time of the RPM3 RPT s is z ero drift or off set, independent of span. Rezeroing RPM3 RPTs relative to a stable reference between recalibrations allows lower measurement uncertainty specificat ions to be maintained wit h a longer interval between full recalibrations. The RPM3 autozero function (AutoZ) provides full on-board support for the rezeroing process to simplify its application by the user.

The autozeroing func tion uses four parameters:

1) ZSTD: T he value of the aut ozero refer ence pressure as indicated by the r eference autozero device.

For absolute RPTs in absolute measurement mode: The autozero pressure is always atmospheric pressure and the ZSTD value can be supplied either:

• By manual entry.

• From a DHI RPM c onnec ted to the RPM3 CO M 2 por t.

• from the Lo RPT (A6000) for the Hi RP T (A30000).

For gauge RPTs or absolute RPTs in gauge measurement mode: The autozero pressure is always zero (atmospher ic pressure) which is available by definition any time the RPT is vent ed to atmosphere.

RPM3/HPMS A30000/ A6000- AF Operation and Mai ntenance Man ual

2) ZCURERR: The difference between ZSTD and t he RPT indication at the autozero

pressure at some time after the RPT has been calibrated (ZCURERR = RPT reading w/out ZO FFSET- ZSTD).

3) ZNATERR: The difference between Z STD and the RPT indic ation at the autozer o pressure ju st aft er the RP T h as been cali brated (Z NATE RR = RP T reading w/ out ZOFFSET - ZSTD). This value, when measured just after RPT calibration, is referred to as the natural error at the autozero pressure. Because NO RPT is perfectly linear and Z ST D is NOT perf ectly accurat e, the disagr eement bet ween the RPT reading and ZSTD at the autozero pressure is unlikely t o ever be zero (exc ept for gauge RPTs f or whic h the zero point is forced at calibration).

4) ZOFFSET: ZCURERR corrected for ZNATERR, represents the drift of the RPT relative to the reference (ZOFFSET = ZCURERR - ZNATERR). The active RPT reading, adjusted by ZOFFSET, is the autozeroed RPT reading (e.g., the RPT reading corrected for zero drift since it was calibrated). F or an absolute RPT us ed in gauge mode, ZOFFS ET also includes the value of at mospheric pressure that is being subtracted t o arrive at gauge pressure.

The AutoZ function manages the determination, storage and application of ZNATERR and ZOFFS ET individually for each RPM3 range and measur ement mode. ZNATERR error is determined at the time of calibration (see Section 5.3.1.2). ZCURRERR and ZOFFSET between calibrations are determined by running AutoZ using the [AutoZ] direct funct ion k ey (see Section 3.2. 10) .

AutoZ On/Off

The AutoZ function can be turned ON and OFF. When AutoZ is ON, ZOFFSET is always applied to the press ure meas ured by RPM 3 and new values of ZO FF SET c an be determined by running AutoZ using the [AutoZ] key. When AutoZ is OFF, ZOFFSE T is NOT applied (except for an absolut e RPT in gauge mode for which ZO FFSET is the current value of atmospheric pressure which is always subtracted to achieve gauge pressure) and Aut oZ cannot be run (s ee Sect ion 3.4. 1.1). In gauge m ode, t urning Aut oZ OFF turns OFF the dynamic compensation for changes in atmospheric pressure (see immediately below).

Gauge Mode with an Absolute RPT, Dynamic Compensation for Atmospheri c P ressure

RPM3 supports gauge pr essure measurem ents with an absolut e RPT by subt racting t he value of atmosphere (tare) from the RPT’s absolute measurement to arrive at a gauge value. The appropriate tare value changes with the natural evolution of atmospheric pres s ur e at a given location. For this reason, the v alue of the tare should be redetermined by running AutoZ (see Section 3.2.10) when the RPT is vented to atmospheric pressure. However, if atmos pheric pressure changes signif icantly between running AutoZ, these changes in atmospher ic pressure are NOT eliminat ed by retaring. To compensate for changes in atmospheric pressure between autozeroing (taring) opportunities, dynamic atmospheric pressure compensation is used.

RPM3/HPMS A30000/ A6000- AF Operation and Mai ntenance Man ual

RPM3’s on-board barometer measures atmospheric pressure independently from the RPT. Between opportunities to update t he tare value by autoz eroing, the differ ence between the on-board barometer reading at the t ime of the last t are and the current onboard barometer reading is used to compensate the tare value. This difference, designated ATMO FFSET, is subtracted f rom the tare value. This dynamic atm ospheric compensation technique r elies only on the resolution and s hort term stability of the onboard barometer, NOT its absolute accuracy or long term stability. Dynamic compensation for atmospheric pressure, allows gauge measurements with an absolute RPT with an additional uncertainty due to possible changes in atmospheric pressure of only ± 0.00035 psi (2.5 Pa) without requiring an accurate barometric reference.

Recommendations for the Use of the AutoZ Function

The AutoZ function provides a powerful and easy to use tool for improving the measurement uncertainty specifications of an RPM3 and reducing the RPM3 recalibration interval by compensating for zero drift between full recalibrations. The following simple recommendations will help assure that you use this feature to best advantage.

• Always leave AutoZ ON when oper ating in t he gauge measurem ent mode. T he only

possible exception is in t he c as e of a malfunction of the on-board barometer.

• Be sure the RPM3 RPT is t ruly vent ed to at mospher e and allow at least t wo minutes

for full system stabilization before running AutoZ in or gauge mode.

• Always leave AutoZ ON when operating in the absolute measurement mode if

ZNATERR was set properly at calibration and the AutoZ routine using a valid atmospheric reference has been run regularly.

• Execute the run AutoZ routine in absolute mode only when a reference whose

measurement uncertainty is known to be significantly lower than that of the RPM3 RPT is available. Keep range ratios in mind when comparing measurement uncertainty. A ± 0.05 % FS barometer has roughly 37 times lower measurement uncertainty than a ± 0.013 % FS 2 000 psi (1 MPa) RPT range because the RPT/ baromet er range r atio is 10: 1. T herefor e, a

± 0.05 % barometer is

more than adequate to us e as an absolute mode AutoZ ref erence for any range of RPM3 A30000/A6000-AF.

m OPERATION

The AutoZ function and values are range AND mode (gauge or a bs o lute) sp ecific.

To access the RPM3 AutoZ function press

1off 2view H3

[SPECIAL] and select <1AutoZ>. The display is: The menu applies to the c urrently active r ange and m eas urement mode. Select <1off> (or <1on>) to change the AutoZ status for the active range and

measurement mode from ON to OFF or vice-ver s a (see Section 3.4. 1.1).

RPM3/HPMS A30000/ A6000- AF Operation and Mai ntenance Man ual

Selecting <2view> allows the current value of ZOFFSET for the active range and measurement mode to be viewed.

Selecting <3edit> allows the current value of ZOFFSET for the active range and measurement mode to be edited.

3.4.1.1 AUTOZ ON/OFF

To turn AutoZ ON/OFF for the current range and measurement mode, press [SPECIAL] and select <1AutoZ>.

If AutoZ is OFF f or the c urrent range and meas urement mode, <1on> is display ed in the menu accessed by pr essing [SPECIAL] and s electing <1AutoZ>. Select <1on> to turn AutoZ ON and return t o the main run screen.

If AutoZ is ON for the current range and measurement mode, <1off> is displayed in the menu accessed by pr essing [SPECIAL] and s electing <1AutoZ>. Select <1off> to turn AutoZ OFF and return to the main run s c r een.

AutoZ ON is indicated by a <z> displaying in the main run screen, top line, third character from the right. When AutoZ is O F F , the cha racter is blank.

In absolute m ode, when AutoZ is OFF , the [AutoZ] key is disab led and ZOFF SET is NOT applied .

In gauge mode, when AutoZ is OFF, the [AutoZ] key is disabled and “dynamic compensatio n for atmospheric pressure” is OF F. ZOFFSET is still a pplied to tare out atmospheric pressure.

3.4.1.2 VIEW AUTOZ

To view the curr ent ZOFFSET f or the active range and measurement mode press [SPECIAL] and select <1AutoZ>, <2view>. The display is:

ZOFFSET absolute H3

ZOFFSET should be zero in absolute mode when the RPM3 is new or has just been calibrated. ZOFFSET should be roughly equal to atmospheric pressure in gauge mode.

1. Current measurement m ode.

Active range.

Display field of current value of ZOFFSET.

The value of ZOFFSET is alw ays displayed and entered in Pascal (Pa) regardless of the current RPM3 measurement unit as RPM3’s internal operations are in Pa.

RPM3/HPMS A30000/ A6000- AF Operation and Mai ntenance Man ual

3.4.1.3 EDIT AutoZ

The edit AutoZ function should be used with caution as entering inapprop riate values and turning ON AutoZ may result in incorrect autozeroing and out of tolerance measurements. In norma l operatio n, the value of ZOFF SET should be changed using the run AutoZ function (see Sec tio n 3.2.10).

To edit ZOF FSET for the act ive range and measurement mode press [SPECIAL] and select <1AutoZ>, <3edit>. The dis play is :

ZOFFSET absolute H3

The value of ZOFFSE T is always displayed and entered in Pascal (Pa) rega rdless of the current RPM3 measurement unit. In gauge mod e, the value of ZOFFSE T is ap prox imately atmospheric pressure.

3.4.2 SDS

m PURPOSE

SDS is not used in RPM3 A30000/A6000-AF.

3.4.3 ATM

m PURPOSE

To view the value of atmospheric pressur e as m easured by the on-board barometer.

1. Current measurement m ode.

Active range.

Edit field for value of ZOFFSET.

m PRINCIPLE

RPM3 has an independent on-board bar ometer connect ed to t he ATM port on t he RPM3 rear panel. The atmospher ic pressure measurement s made by the on-board bar ometer are only used for dynam ic compensation of atmospheric pres sure in gauge mode (see Section 3.4.1) .

See Sections 1.2.2.2 and 5.2.2.

The on-board barometer is used only for measuring changes in atmospheric pressure over short periods of time in gauge measurement mode. RPM3 measurement uncertainty doe s not dep end on the abso lute meas urement unc ertainty o f the on-bo ard barometer, only o n its resolutio n and s hort term rep eata bility (see Sectio n 3.4 .1, Ga uge Mode with an Absolute RPT, Dynamic Compensation for Atmospheric Pressure).

RPM3/HPMS A30000/ A6000- AF Operation and Mai ntenance Man ual

m OPERATION

To view the current reading of the on-board barometer press [SPECIAL] and select <4Internal>, <7Atm>. The display is in the current press ure units and curr ent res olution

setting of t he ac tive RPM3 range.

3.4.4 REMOTE

m PURPOSE

To configure the RPM3 COM1, COM2 and IEEE-488 (GPIB) communication ports. To test CO M 1 and COM2 communications .

m PRINCIPLE

The RPM3 has two RS-232 communications ports refer red to as COM1 and COM 2 and a single IEEE-488 (GPIB) port. CO M1 or the IEEE-488 port is f or communicating with a host computer (see Chapter 4), and COM2 is reserved for communicating with an external device (e.g., a multimeter, RPM, etc.). These ports can be set up from the RPM3 front panel.

A self- test is supplied f or RS- 232 communic ations. T he self- test allows verif ication t hat the RPM3 RS-232 ports (COM1 and COM2) are operating properly and that a valid interface cable is being used. The test has two steps. In the first, COM1 sends a message to COM2 and in t he second COM 2 sends a message t o COM1. I n each step, RPM3 checks the message received at the receiving CO M port. If the receiving COM port times out or receives an incorrec t message, that step of the t es t fails.

m OPERATION

To access the port configurations press [SPECIAL] and select <4Remote>. Select <1COM1>, <2COM2>, or <3IEEE-488> to view and edit that port’s settings. Press [SPECIAL] and select <4Remote>, <4RS232test to ac c es s the RS-232 self tes t.

1) COM 1 and 2COM2

The COMx ports can be set for the specific settings required by the user. These settings ar e baud, parity, lengt h and s top bit. The available opt ions are:

Baud: 300, 600, 1 200, 2 400, 4 800, 9 600, 19 200 Parity: NONE, ODD or EVEN Length: 7 or 8 Stop Bit: 1 or 2

The default is 2 400, E , 7,1 for COM 1 and COM2. The RPM3 appends a carriage return and a line feed to all messages that are s ent

out of the COM1 port to t he host . I t looks for a c arriage ret urn t o ter minate inc oming messages and ignores line feeds . T he user M UST wait for a reply t o each mess age sent to the RPM 3 before sending another mess age to it.

RPM3/HPMS A30000/ A6000- AF Operation and Mai ntenance Man ual

2) IEEE-488

The IEEE-488 port address can be specified f r om 1 to 31. The RPM3 sends a line feed and asserts the EOI line at the end of all

transmitted messages. It looks for a line feed and/or assertion of the EOI line to terminate incom ing m es s ages .

3) RS-232 S elf-Test

The RS-232 Self Test is provided to check the RPM3 CO M ports and the interf ace cable independently of an ext ernal device or computer. If you are having difficulty communicating with RPM3 by RS-232 from a computer, the RS-232 self test can help establish that t he RPM3 CO M1 port you are t rying t o com municat e with and the interface cable you are using are good.

To run a self test of the RS-232 ports (COM1 and COM2) press [SPECIAL] and select <4Remote>, <4RS232test>.

The display prompts you to connect COM1 to COM2 using the appropriate cable (see Section 4.2.1).

Once the connect ion has been made, press [ENTER] to run the self test. The test is first executed in the COM1 direction. If the COM1 proceeds to COM2 briefly followed by t he c onc lusion, <RPM3 RS232 test has PASSED> . If a test fails, execution is suspended unt il [ENTER] is pressed.

The RPM3 RS-232 test can fail for three reasons: 1) The RS-232 cab le being used is incorrect (see Section 4.2. 1 for inform a tio n o n the correct cab le); 2 ) COM1 a nd COM2 do NOT have the same serial communications settings and therefore cannot communica te together (see Section 3.4. 4 to set the COM ports); 3) COM 1 or CO M2 is defective. The reason for failed communications is almost always a cable or RS-232 interface settings problem. Be sure that these are correct before concluding that a CO M port is defective.

3.4.5 RESET

m PURPOSE

To reset various RPM3 settings to default or fac tory values. RPM3 stores its user definable settings in non-v olatile memory. T he reset menu allows

the user to select ively or com pletely reset these sett ings to fac tory defaults. T his clear s out any settings that the user has set up, and should be used only t o restore the RP M3 to a known state. RPM3 will go through its reboot routine after any type of reset is selected.

→COM2 direction and then in the COM2→COM1

→COM2 test passes, <PASSED> dis plays brief ly and t he test

→COM1. If COM2→COM1 passes <PASSED> is displayed

RPM3/HPMS A30000/ A6000- AF Operation and Mai ntenance Man ual

m OPERATION

To access the reset choices, select <5Reset> under the [SPECIAL] menu. T he display is:

3.4.5.1 RESET - SETS

m PURPOSE

Clears all of the norm al us er s ettings for pres s ur e m eas ur em ents. This includes :

• Head settings set to disabled with <cm> as the height unit and <N2> as the

medium (see Sect ions 3.2.8 and 3.3.1).

• Sets the upper limits (UL) to fac tory defaults ( s ee S ec tion 3.2.5).

• Set the stability limits to ± 0. 005 % FS (see Section 3.3.4).

• Sets the auto zero ATMSTART measurement to 101.325 kPaa (see

Section 3.4.1) .

• Enables the auto read rate feature (see S ec tion 3.2.3).

• Sets the resolution to factor y defaults (see Sect ion 3.2.6).

• Sets the pressure units to <psi> (see Section 3.3.3).

1sets 2units 3seq

• Sets the measurement mode to <absolute> for ranges on absolute RPTs

and <gauge> for ranges on gauge RPTs ( s ee S ec tion 3.2.4).

• Enables auto zero for all ranges and measurement modes (see

Section 3.2.10) .

• Sets the range t o <H3> (see Section 3.2.2).

• Sets the beeper on valid k ey entry to <mid> (see Sect ion 3.4.7.2).

• Sets the Scr een s av er period to 10 minutes (see Section 3.4.7.1).

• Clears the previous leak check results (s ee S ec tion 3.3.5).

RPM3/HPMS A30000/ A6000- AF Operation and Mai ntenance Man ual

3.4.5.2 Reset - units

m PURPOSE

Resets unit and mode settings to defaults:

• Sets the six pressure unit selectable from [UNIT] to defaults (see

Section 3.2.3) .

• Sets the ref erence temperature for inches of water to 4 °C.

• Sets the user unit coefficient to 1.00/Pa (see S ec tion 3.3.2).

• Sets the act iv e pr essure unit to psi f or all r anges (see Section 3.2. 3) .

• Sets the act iv e measurement mode to default (see Sect ion 3.2.4).

3.4.5.3 Reset - seq

m PURPOSE

Resets all Sequence relat ed v alues (see Section 3.2. 11) :

• Clears all File Sequence files ( s ee S ec tion 3.3.6.2).

• Resets the Quic k S equenc e s ettings (see Section 3.2.11.1) t o default values.

• Clears all Sequence data files (see Section 3.3. 6.2).

3.4.5.4 Reset - cal

m PURPOSE

Use caution with this res et a s critica l ca lib ration data m a y b e d eleted .

This clears the user calibrations information, which affects the calibration of the unit:

• Clears the user defined RP T calibrat ion coefficient s. PA/ PM to 0 (zer o) and

1 (see Section 5.3. 1.1).

• Clears the user defined barometer calibration. S ets P A/P M to 0 (z ero) and 1

(see Section 5.2.2).

• Clears the ZNAT E RR and ZOFFSE T values to 0 (zero) (see Section 3. 2.10).

RPM3/HPMS A30000/ A6000- AF Operation and Mai ntenance Man ual

3.4.5.5 Reset - all

m PURPOSE

To return RPM3 to the as delivered original f ac tory condition.

• Performs the functions of the Sets, Units, Seq, Cal resets (see Section

3.4.5).

• Resets the user s ec ur ity level to low (see Sec tion 3.4.8).

• Resets communicat ions port settings: COM1 and COM2 set to 2400,E,7,1

using <CR> and <LF> as the terminating characters. The IEEE-488 interface address is set to <10> (see Section 3. 4.4).

3.4.6 CAL

To calibrate the RP M3 Hi and Lo RPT s and adjust the on- board baromet er. T hese f unctions are considered part of RPM3 maintenance and are therefore covered in the maintenance section of this m anual (see Sections 5.3 and 5.2.2).

3.4.7 INTERN

m PURPOSE

To access a menu of RP M3 internal operating pref erences and functions.

• Select <ScrSvr> - View and change the screen saver f unc tion (see Section 3. 4.7.1).

• Select <sounds> - View and change valid entry keypad sound settings (see

Section 3.4.7.2).

• Select <time> - View and edit the internal time and date settings (see

Section 3.4.7.3).

• Select <ID> - View the RPM3 serial number, view and edit the ID number (see

Section 3.4.7.4).

m OPERATION

To access the Intern menu press [SPECIAL], and select <7Intern>. The display is:

Select <1ScrSvr> to access the screen saver activation time menu ( s ee S ec tion 3.4.7.1). Select <2sound> to access the keypad sounds choic es (see Section 3.4.7.2).

1ScrSav 2sound 3time

Select <3time> to access the tim e and date view/edit (see S ec tion 3.4.7.3). Select <4ID> to access the S/N view and t he ID view/edit (see S ec tion 3.4.7.4).

3.4.7.1 ScrSav

m PURPOSE

To adjust the RPM 3 s c reen saver function.

m PRINCIPLE

RPM3 has a screen saver function whic h causes t he display to dim aft er a front panel key is NOT pressed f or a certain amount of time. This f unction is fact ory set to activ ate after 10 minut es of inactivity but can be adjusted by the user .

m OPERATION

To access the screen saver function press [SPECIAL] and select <7Intern>, <1ScrSav>. Edit the tim e in minutes, after which screen s aver will

turn ON.

Setting screen saver time to zero eliminates the screen saver function so that the display remains permanently at full brightness. The display may also be completed sup p r ess ed us ing the s o ft [ON /OF F ] ke y (s ee Sectio n 3 . 1.4).

RPM3/HPMS A30000/ A6000- AF Operation and Mai ntenance Man ual

3.4.7.2 Sound

m PURPOSE

To adjust or suppress the RPM3 keypad valid k ey pr es s s ounds .

m PRINCIPLE

RPM3 provides audible feedback by a brief beep when a valid key press is executed. T he frequency of this beep m ay be s elec ted from three choices or it may be completely suppressed. Invalid key presses are indicated by a descending two tone blurp which cannot be s uppr es sed (see Section 3.1.3).

m OPERATION

To access the k eypad sound adjustment f unction press [SPECIAL] and select <7Intern>, <2sound>.

Select between <2lo>, <3mid> or <4hi> to adjust the valid key press tone frequency.

Select <1none> to suppress the valid key press s ound.

The sound function only affects the va lid key press tone.

RPM3/HPMS A30000/ A6000- AF Operation and Mai ntenance Man ual

3.4.7.3 Time

m PURPOSE

To view and edit the RPM 3 internal time and date settings.

m OPERATION

To access the time function press [SPECIAL] and select <7Intern>, <3time>. The display is:

Select <1time> to edit the time. Edit hours, then minutes, then am/pm by pressing [ENTER] at each ent ry. Seconds go to z er o when m inutes are entered.

Select <2date> to edit the date. The date must be specified in YYYYMMDD format.

3.4.7.4 ID

m PURPOSE

To view the RPM3 serial number (SN) and to view or edit the ID number.

m PRINCIPLE

RPM3 has a factor y programmed serial number that is included on the product label on the bottom of the case and can be viewed in the I D m enu.

Edit: 1time 2date

The RPM3 d ate and time a re set to United States M ountain Stand ard Time in the final test and inspection pr ocess at the fa ctory. If desired, used the date function to set your local time and date.

RPM3 also allows the user to store a unique alpha numeric ID number. This feature is frequently used to assign an or ganizational contr ol ID such as an asset number, t ool number , st andard number , et c. T he ID funct ion allows t he ID number to be viewed and edited.

m OPERATION

To access the I D func tion pr ess [SPECIAL] and selec t <7Intern>, <4Keypad>. Select <1view> to view the current ID and serial number (SN).

Select <2edit> to edit the ID.

RPM3/HPMS A30000/ A6000- AF Operation and Mai ntenance Man ual

The ID has twelve c haract ers. When t he edit sc reen is enter ed, the cur sor is on the first c haracter. Numerical values can be ent ered directly from the keypad. In addition, the [ available alpha numeric characters. Holding the key slews through the characters. Character order going up ([ case letters, upper case let ters, num bers. Press [ENTER] t o select a character and move to the next c haracter.

When a character is s elec ted the cursor moves to the next charac ter. T o leave a blank character, [ENTER] with t he field f or that charac ter blank . Use this f or the trailing characters if the ID being ent er ed is les s than 12 characters.

After the las t of the t welve charact ers has been enter ed, the < Save ID?> option is offered. Select <1no> t o return t o the ID edit screen. Selec t <2yes> to save the edited ID.

The ID can also be set remotely from a computer which is quite a bit more convenient than writing it from the keyboard (see Section 4.4 .2 .8 ). ID ca nnot b e cleared or reset by user commands.

←←←←] and [→→→→] keys can be used to toggle through a list of

→→→→]) is: blank space, symbols, lower

3.4.8 LEVEL

m PURPOSE

To set user protection levels to restrict access to certain functions and to edit the password required for c hanging us er lev els .

m PRINCIPLE

RPM3’s front panel user interface provides the means to access all RPM3 user defined data, settings and functions including calibration data. Inadvertent, uninformed or unauthorized altering or deleting of data, sett ings and functions could require extens ive reconfiguration by the user and might cause invalid readings or damage t o the system. For these reasons , depending upon the applicat ion in which RPM3 is being used, it m ay be desirable to restrict access to certain functions for certain users. The user level function provides a m eans of rest rict ing access to cer tain f unctions . F our diff erent lev els of security are available.

Access to changing s ec ur ity levels can be left open, or be protected by a pas s wor d.

Security Levels

The security lev els ar e s tructured to s uppor t typical operating envir onm ents as follows: None This level is intended for use only by the system manager and/or

calibration facility. It allows access and editing in all areas including critical metrological inform ation.

Low This level of security is designed to protect the specific metrological

information and system diagnostic and maintenance f unctions of the system. It is intended for an advanced operator performing many different tasks.

RPM3/HPMS A30000/ A6000- AF Operation and Mai ntenance Man ual

Medium This level of security is des igned to protect specific metr ological infor mation in

the system and to assure that the RPM3 is operated using consistent operational parameter s .

High This level of security is designed to protect all operating parameters. It is

intended to minimize operator choices, for example to perform repeated identical tests under c ons is tent conditions.

RPM3 is delivered with the security level set at low to avoid inadvertent altering of critical internal settings but w ith access to changing security levels unrestricted. It is recommended tha t the low security level b e maintained a t all times. If there is a risk of unauthorized changing of the security level, changing authority should be password protected (see Section 3.4. 8 ).

The high security level disables remote com municatio ns and returns a n error mes sage to all remote commands. All other security levels have NO effect on remote communications.

The security levels are structured to support typical levels of operation and to prevent execution of the X ’d f unc tions as shown in Table 6.

Table 6. Functions - Security Levels

FUNCTION LOW MEDIUM HIGH

[RANGE] [UNIT] [MODE] [UPPER LIMIT] ( c hange set t ing) [RES] [RES] (change sett ing) [DISPLAY] [HEAD] [SDS] [AutoZ] (in absolute mode) [ENTER], <1QukSeq> or <2Fi l eSeq> ) [ENTER], <1QukSeq> or <2Fi l eSeq> ( m ake changes) [SETUP], <1Head> [SETUP], <2PresU> [SETUP], <3ReadRt> (change stat us) [SETUP], <4Stab> (change set ting) [SETUP], <6Seq> [SPECIAL], <1AutoZ> [SPECIAL], <1AutoZ>, <1on/OFF> [SPECIAL], <1AutoZ>, <3edit> [SPECIAL], <2SDS> [SPECIAL], <3Atm> [SPECIAL], <4Remote> ( access) [SPECIAL], <4Remote> ( m ake changes) [SPECIAL], <5Reset>

XX XX XX XX XX XX

XX XX XX

XX XX

X X X X X

X X X

X X

RPM3/HPMS A30000/ A6000- AF Operation and Mai ntenance Man ual

Table 6. Functions - Security Levels (Continued)

FUNCTION LOW MEDIUM HIGH

[SPECIAL], <5Reset>, <3com> [SPECIAL], <5Reset>, <4cal> [SPECIAL], <5Reset>, <5all> [SPECIAL], <6Cal> [SPECIAL], <6Cal>, <1RPT>, <2edit> [SPECIAL], <6Cal>, <1RPT>, <3run ZNATERR> [SPECIAL], <6Cal>, <2barometer>, <2edit> [SPECIAL], <7Intern> [SPECIAL], <7Intern>, <3Time> (make changes) [SPECIAL], <7Intern>, <4ID>, <2edit> [SPECIAL], <9Log> (v ie w) [SPECIAL], <9Log> (clear log) [SPECIAL], <9Log> (clear r un t im e)

Remote communications disabled X

m OPERATION

XXX XXX XXX

XX XXX XXX XXX

X XXX XXX

RPM3 is delivered with NO active password so access to t he User Level menu is open. The user level is set to <1Low>. User levels can be changed freely unt il a password has been created.

To access the User Level function, press [SPECIAL] and select <8Level>. If NO password yet exists or if the cor r ec t password has been entered.

The display is:

Selecting <1change> user level brings up the

1change user level

Restriction: 1none

restriction m enu. The display is: You can then select the current restriction level, or [ESCAPE] back to the main

run screen. Selecting <2edit password> displays the user

password and allows it to be edited. Pass words c an

Password:

pppppp

be up to six numbers in lengt h and cannot st art with a zero.

Once a password has been entered, the user level cannot be changed without reentering the password.

If 0 (zero) is ent ered, then the password is made inac tive and a password will NOT be required to access the user level menu. This is the factory def ault with a security level of <2low>.

RPM3/HPMS A30000/ A6000- AF Operation and Mai ntenance Man ual

If there is an active password, the RPM3

password entry screen appears. The user must enter the user defined password or the factory secondary passwor d to proceed any furt her :

The first field <nnnn> is the s erial number of t he RPM3, followed by a s econd field <xx> that represents the number of times that a secondary password has been used. This second field increments each time a secondary password is used. T he third field, <pppppp>, is for nor m al pas s wor d entry.

The factory secondary password is available in case the user’s password has been misplaced or forgotten. It can be obtained by contacting a DHI Authorized Service Center. The factory secondary passwo rd is different for all RPM3’s and changes each time it is used.

3.4.9 LOG

m PURPOSE

To view and/or clear the RPM3 event log; to view the RPM3 run-time clock.

m PRINCIPLE

RPM3 SN

nnnn-xx pppppp

RPM3 records t o a log eac h time one of the following events occurs:

• Pmax! is exceeded (see Section 3.2. 5.1).

• A memory fault occurs.

The log may be viewed. The information can be useful in diagnosing an overpressure event. RPM3 accumulat es power -on time.

RPM3 also maintains a run-time clock. The clock accumulates time that the RPM3 is under line power. Soft OFF tim e c ounts as run time (s ee S ec tion 3.1.4).

m OPERATION

To view the event log or run-time clock pres s [SPECIAL] and select <9Log>. Select <1log> to view the event log. The oldest logged event appears. P ressing [ENTER] steps thr ough the logged events

from the oldest to the most recent and ending with the option to clear the log. Select <YES> or <NO>. If NO ev ents have been logged, <End of log> displays.

RPM3 suppo rts a d uplica te facto ry lo g that cannot b e viewed or cleared by the user.

Select <2runtime> to view the run-time clock. The total accumulated run-time is displayed. The unit of measure is hours with

0.1 hour resolution.

RPM3/HPMS A30000/ A6000- AF Operation and Mai ntenance Man ual

4. REMOTE OPE RATION

4.1 OVERVIEW

Most of the RP M3 front panel functions can also be executed by c om m ands from a remote computer . The host computer can communicate to the RPM3 using the RPM3 COM1 RS-232 port or the IEEE-488 port.

4.2 INTERFACING

Sending a message to the RP M3 places it in rem ote mode. T he remot e indicator t o the bott om right of the display lights when the RPM3 is in remote mode. It will also flicker when a message is received. The menus usually accessed from the front panel are locked out while in remote. [ESCAPE] returns the RPM3 to local operation unless the SYST EM:KLO CL O N command was us ed to lock out keypad oper ation.

4.2.1 RS-232 INTERFACE

4.2.1.1 COM1

The RPM3 COM1 RS- 232 interf ace is loc ated on t he r ear panel. It is a 9- pin f emale DB-9F connector configured as a DCE device. Data is transmitted out of RPM3 using pin 2 and is received on pin 3. This allows a norm al pin-to-pin DB-9M to DB- 9F RS-232 cable to be used to connect to a DTE host. Handshaking is NOT required or supported.

Table 7. RPM3 COM1 DB-9F Pin Designations

PIN # FUNCTION DESCRIPTION

2 TxD This pin transmits serial data from t he RPM3 t o t he host. 3 RxD This pin accepts serial data from the host computer. 5 Grn This pin is the common return for the TxD and RxD signals.

Table 8. IBM PC/XT DB-9F, DB-9M Connections

IBM PC/XT DB-9F CONNECTIONS

DB-25M DB-9F DB-9M DB-9F

2333 3222 7555

IBM PC/XT DB-9M TO RPM 3 DB9F

CONNECTION

RPM3/HPMS A30000/ A6000- AF Operation and Mai ntenance Man ual

4.2.1.2 COM2

The RPM3 COM2 RS-232 interface is located on the rear panel. It is a 9-pin male DB-9M connector configured as a DTE devic e. Data is t ransmitt ed out of the RP M3 using pin 3 and is received on pin 2. This allows a normal pin-to-pin DB-9F to DB-9M RS-232 cable to be used to connect to a DCE slave. Handshaking is NOT required or supported. COM2 can be used to allow c ommunication to other RPM3s by connecting the Host port to the first RPM3’s COM1 port, and then connecting COM1 of the sec ond RP M 3 to the COM2 port of the first RP M 3. This method can be used to chain multiple RPM3s together using t he SYS:COMM:THRU command.

Table 9. RPM3 COM2 DB-9M Pin Designations

PIN # FUNCTION DESCRIPTION

2 RxD This pin accepts ser ial data f r om anot her RPM3 or anot her device. 3 TxD This pin transmits serial data from the RPM3 to another RPM3 or

another device.

5 Grn This pin is the common return for t he TxD and RxD signals.

4.2.2 IEEE-488 (GPIB)

The RPM3 IEEE-488 interface is located on the rear panel. The physical and electrical interface conforms to IEEE Std 488.1-1987 Subset E2 and IEEE Std. 488.2-1992. You should NOT attempt to communicate with the IEEE-488 interface while using the COM1 interface. The IEEE-488 receive buffer is 250 bytes deep. The RPM3 will hold off release of the NRFD handshake line until it can service and empty the receive buffer. This keeps the buffer from overflowing.

4.3 REMOTE COMMAND SYNTAX AND STYLE

4.3.1 LOCAL AND REMOTE SETTING

When in local mode, each of the three ranges of each of t he (up to) two RPTs has it s own settings (unit , mode, resolution, stabilit y) (see Section 3.2.2) t hat are set range specifically and remain with the range. When ranges are changed, the settings change to those that were last set in t hat range. Sett ings c hange as r anges are changed. In r emote, each RPT is treated as a channel and the settings are common to all t he ranges of one RPT. The only range specific set tings are calibr ation and AutoZ settings. When you change ranges on one RPT the sett ings rem ain the sam e. Changes m ade t o the set tings while in remot e mode will remain when operation is swit c hed bac k to local mode.

RPM3/HPMS A30000/ A6000- AF Operation and Mai ntenance Man ual

4.3.2 COMMAND SYNTAX

The remote command set for the RPM3 uses SCPI, 1992.0 (Standard Communications Protocol for Instruments) syntax and f ormat. Commands are grouped into subsyst ems that contain related keywords in a hierarchic al str uctur e in a comm and tree. These keywor ds are strung together to c reate a c ommand. A colon (:) is a header separ ator that separates eac h keyword as you move down eac h level or node of the command tree. The beginning of a command message does NOT require a colon (:), but one is allowed.

Each keyword has a long form and a short form. The short form is always shown in uppercase, while the remaining lower case letter s indicat e the long f orm. Either long or shor t form use is allowed and the RP M 3 is c as e ins ens itive to these com m ands . Brackets ([ ]) ar e used to identify optional keywords that ar e the default keyword for a particular node.

4.3.3 QUERIES AND REPLIES

Many commands require additional parameters, some r equire NO additional param eters , and many also have a query form. Some commands are only queries. A question mark (?) immediately following a command spec ifies a query. Commands for t he COM1 port and the IEEE-488 port use the same style and syntax, but differ slightly in their responses from RPM3. When using the IEEE-488 port , only queries generate a reply from the RPM3. When using the COM1 port, every command gener ates a reply, and the user mus t wait for the reply before sending another com mand. For COM1 non-query c ommands, t he RPM3 replies with an <OK> or <ERROR>. This maintains s y nc between the host and the RP M 3.

4.3.4 MULTIPLE COMMANDS

Multiple commands may be sent within a single message to the RPM3 if desired. These commands m us t be separated by a semicolon (;) and t he tot al mess age length cannot exceed 80 characters. E ach command mus t be preceded by a colon (:) ( unless you wish to reference the previous command node (discussed later)). Query replies to such messages are returned in a single reply message with eac h reply separated by a semic olon (;). If you send multiple commands in a single message to the COM1 port, each query generates a reply and each non-query command generates an <OK> response, with a semicolon (;) separating each reply within the reply message.

Example:

PC RPM3 PC → RPM3 (COM1): “SYST:VER?;:DISP:BLAN 10;:ABOR” RPM3

→ RPM3 (GPIB): “SYST:VER?;:DISP:BLAN 10;:ABOR” → PC (GPIB): “1992.2”

→ PC (COM1): “1992.2;OK;OK”

RPM3/HPMS A30000/ A6000- AF Operation and Mai ntenance Man ual

When using multiple commands, you may reference the previous command level by NOT preceding the command with a colon (:). RPM3 interprets the command starting at the command level defined by the preceding command in the message. This level must be established by the f ir s t command of a mess age.

Example:

To set the RPM 3 COM1 port to 2 400 baud, even parity, 7 bit word length and one stop bit, you c ould s end:

“COMM:SERIAL:TRAN:BAUD 2400;PAR EVEN;BITS 7;STOP 1”

Because this mess age actually cont ains four com mands, the r eply from t he RPM3 if using the RPM3 COM1 por t would be:

“OK;OK;OK;OK”

4.3.5 COMMAND PARAMETERS

Command parameters can be required or optional. There must be at least one space preceding the first parameter. Additional parameters are preceded by a comma (,). Parameters which depend on a unit of measure (e.g., pressure or head height) are interpreted in the c urrent def ault unit unless a unit suf fix f ollows t he paramet er separ ated by at least a space. Wher e indicat ed, spec ific k eywords c an be used in place of paramet ers f or MIN, MAX and DEFAULT paramet er v alues that are det er m ined by the RPM3. B r ac k ets ([ ]) are used to identify optional parameters. In some cases, quer ies m ay allow par am eters.

4.3.6 SUFFIXES

In some cases, a numeric suffix can follow a keyword t o differentiate between the Hi RPT and the Lo RPT. 1 accesses the Hi RPT , and is the ass umed RPT if a suff ix is NOT given. 2 accesses t he Lo RP T (if present) . The comm and descriptions indicate an optional suffix by the use of [n] where n can be 1 or 2.

4.3.7 PROGRAMMING TIPS

4.3.7.1 SCPI AND IEEE-488.2

The RPM3 uses a rem ote command syntax and format based on the S CP I (Standard Commands for Programmable Ins truments) language (see Section 4. 3). SCPI has been adopted because it provides the benefits of a standardiz ed logical st r uc ture and common command syntax for users of programm able test instruments . Those that have developed programs for other SCPI c ompliant instruments will find t he RPM3 command set familiar and eas y to understand. Firs t time SCPI users need to take some time to becom e familiar with the hierar chical SCPI commands . At f irst, these will seem complex, espec ially when compared with the simple linear command set used with older DHI products. In fact, they offer gr eater versatilit y and commonality with other program m able test instrum ents.

RPM3/HPMS A30000/ A6000- AF Operation and Mai ntenance Man ual

RPM3 also supports IEEE-488.2 common and stat us commands.

LabVIEW® drivers are available for the RPM3. These drivers allow users of the

National Instruments’ LabVIEW more RPM3s using LabVIEW commands directly. The RPM3 LabVIE W

environment to create systems that include one or

virtual instruments instead of using the remote

drivers are an abstraction of the remote commands into a consistent set of common and specific instrument functions. The drivers can be obtained at NO charge from the DHI web site www.dhinstruments.com.

4.3.7.2 PROGRAMMING TECHNIQUE

The following six step procedure can be used to create a program which acquires pressure data over the RPM3’s remote interface.

 Establish communications with the RPM3 via RS-232 or IEEE488:

RS-232 (COM1): To establish serial communicat ions, the PC and RPM3 must be configured to have mat ching baud rates , parity, data bits, and st op bits. The PC’s COM port must be connected to the RPM3’s CO M1 port using a straightthrough DB9M-to- DB9F cable (see Section 4.2.1). The RPM3 COM1 port can be configured locally from the f ront panel by pressing [SPECIAL] and select ing <4Remote> (see Section 3.4.4).

RPM3 supports an independent RS-232 self test to verify that the RPM3 RS-232 p orts a re op erating correctly a nd the interface cab le being used is va lid. Use this self test to trouble sheet if you are having difficulty establishing communications over RP M 3 C OM1 (see Section 3.4.4 ).

IEEE-488: To establish IEEE-488 communications, the PC must have an IEEE-488 card and the RPM3 must be correctly addressed (see Section 4.2.2). The RPM3’s IEEE-488 address can be set locally from the front panel by pressing [SPECIAL] and selecting <4Remote> (see Section 3.4.4). An IEEE- 488 interface cable must be used.

Send the command “*IDN?” and read the response (see Section 4.4.2.1). Scan the response for the string “RPM3”. This verifies that communications have been successfully established and t hat t he instr ument connect ed is act ually an RPM3.

When in high security user level (see Section 3.4.8), remote commands are locked out. This mode is set from the front panel. Any attempt to communicate remotely when locked out by the user level results in an error. The error query remote command (see Section 4.4.2.8) is the only remote command that will function when remote co m m a nd s a re lo ck ed o ut b y the us er level.

RPM3/HPMS A30000/ A6000- AF Operation and Mai ntenance Man ual

 Set the pressure units for the desired RPT:

Send the command “UNIT[n] P

RESUNIT” (where n equals 1 to select the Hi RPT

and 2 to select t he Lo RPT). F or example, to set t he measurement unit s on the lo RPT to psi, send the command “UNIT:PRESsure2 PSI”. Note that the keyword “PRESsure” is optional for this command, so the command “UNIT2 PSI” would have the same effect (see Section 4.4.2.9).

 Set the pressure measurem ent mode for the desir ed RP T:

Send the command “UNIT[n]:P RPT and 2 to select t he Lo RPT . W here P

RESMODE” (where n equals 1 to select the Hi

RESMODE equals A to select absolute

and G to select gauge. For ex ample, to set the measur ement mode on the Lo RPT to gauge, send the command “UNIT:PRESsure:MODE G” (see Section

4.4.2.9).

 Star t and get a new pressure meas ur em ent:

Send the command “MEASure[n]? Lo|Mid|Hi” (where n equals 1 to select the Hi RPT and 2 to select the Lo RPT). This com mand allows the RPT range and resolution for a pressur e measurement to be def ined. For example, to read the pressure using Range 2 (the Mid range) of the Lo RPT send the command “MEASure2:PRESsure? MID”. Note that the resolution is an optional parameter and was NO T sent in this example ( s ee S ec tion 4.4.2.2).

 Obtain information related to the last measurement cycle:

Use the “FETCh[n]?” command. The “FETCh[n]?” command does NOT initiate a new pressure reading cycle and therefore can be used to quickly obtain previously initiated pr essur e readings. For ex ample, t o read the pr essure rat e of change that was associated with the measurement cycle of Step

 above, send

the command “FETCh2:Rate?” (see Section 4.4.2.).

 Read the pres s ur e Ready status associated with the last measurement cycle:

Use the “CALCulate:STABility[n]:LIMIT:FAIL?”. This command allows the Ready/Not Ready status of the previous pressure measurement to be determined (see Section 3.1.2). For example, send the command “CALCulate:STABility2:LIMIT:FAIL?” to read the stability dependent r Ready/Not Ready value associated with the reading made in Step

 above

(<0> if Ready, <1> if Not Ready) ( s ee S ec tion 4.4.2.3).

The preceding procedure utilizing the “MEASure” command is recommended for single pressure readings. This command is simple to use since it allows the selection of RPT, range and resolution, initiates a pressure measurement cycle and reads the result all in a single command. The drawback of combining all these functions in a single command is that it takes several seconds to execute and includes functions that are NOT necessary when repeating measurements. The preferred method when taking repeated readings from a specif ic RPT and range is t o first use the “CONFigure” command to set the range and resolution and then to repeatedly use the “READ” command to start and get the pressure measur ements on the current range. The following comm ands could be used t o perform the sam e test as described above instead of using the measure command: “CONFigure2 Mid” followed by “READ2?” ( s ee S ec tion 4.4.2.2).

RPM3/HPMS A30000/ A6000- AF Operation and Mai ntenance Man ual

In fact, if RPM3 is already set up as needed for the measurements t o be made, the only command that is needed to collect data is the READ[n]? command. For the test above, the command to send to read pressure from the current range is “READ2?”.

Table 10. Quick Programming Tips

IN ORDER TO: USE COMMAND NOTES

Set the pressure units. UNIT[n] PRESUNIT Use UNIT:MODE to set gauge or

absolute measurement mode.

Read the pressure using the current range of the specified

READ[n]?] Remember to turn SDS OFF, if

present, prior to t aking a reading. RPT, in current measurement units and resolution.

Turn SDS OFF or ON for the specified RPT.

Set the RPT and range and read the pressure.

SDS[n] OFF|ON SDS is not present on RPM3

A30000/A6000-AF.

CONF[n] L o | Mid|Hi followe d by READ1[n]?

As an alternate, Meas[n]?

Lo|Mid|Hi also works but contains

redundant functions when used

repeatedly on the same range. Determine the pressure

stability rate dependent Ready/Not Ready condition

CALC:STAB[n]:LIMIT:FAIL?

Returns <0> when previous

reading was Ready (within

stability criterion). for a pressure reading.

Read the pressure rate of change associated with a prior

FETC[n]:RATE? Fetch can also be used to reread

the last pressure. pressure reading.

Set the head height. CALC:HEAD:HEIGht HEIGHT Send UNIT:HEIGht IN|CM pr ior to

setting the head height. Turn ON AutoZ for the

specified RPT.

CAL[n]:ZERO:STATe ON This enables AutoZ on t he current

range. The setting applies to

other ranges on the same RPT

when the range is changed. Run AutoZ on a specified RPT

and range to specify the value

CAL[n]:ZERO:AUTO

NCE,ZSTD]

[O of ZSTD and determine a new ZOFFSET for a given range and measurement mode.

Check if the upper limit was

SENS[n]:PROT:TRIP? SENS[n]:PROT:CLE is used to exceeded.

See if any errors have

SYST:ERR? occurred.

Have the RPM3 screen

CONF[n]:R correspond to a specific RPT and range.

Prior to executing this command the range must be selected using the CONF command and the measurement mode must be selected using the UNIT:MODE command.

clear this flag.

ANGE This command affects the

display. READ and MEAS commands do NOT.

RPM3/HPMS A30000/ A6000- AF Operation and Mai ntenance Man ual

4.4 COMMANDS

Table 11. Com mand Summary

Items inside brackets [ ] are optional. A ‘|’ character signifies a logical ‘or’.

[n] specifies the RPT channel (‘1’ Hi, ‘2’ Lo. Default is ‘1’).

[nn] specifies the optional RPT range from 1 to 3 (default is ‘1’).

COMMAND PARAMETERS NOTES

*CLS

*ESE *ESR? *IDN? *OPC *OPT? *RSE *RSR? *RST *SRE *STB? *TST?

Command only

0..255 Query only Query only None Query only

0..255 Query only Command only

0..255

0..255 Query only

Clears the queues and status registers Event status enable register Event status register Identify software ver sion and hardwar e Operation complete Operation identification RPT ready status enable register RPT ready status event register Reset to default settings Service request register Status byte System self test results

:ABORt

:CALCulat e

:HEAD

:HEIGht :MEDium :DENSity

:STABility[ n]

:LIMIT :FAIL?

:CALibra tion[n]

:AMBient [:PRESsure]

:DATE

:RPT[nn]

:DATE

:ZERO

:STATe :AUTO :OFFSet[nn]

:ABSolute :GAUGe

:NATerr[nn]

:CONFigure[n]

[:PRESsure]

Halt current measurement cycle

HeadHeight N2|He|Air|Oil|H20|User Density

Stability Query only

Adder, Multiplier YYYY,MM,DD Adder, Multiplier YYYY,MM,DD

0 |1 |OFF|ON ONCE

Absolute ZOFFSET Gauge ZOFFSET ZNATERR

range, resolution Configure RPT for range and resolution.

Height difference of RPM3 and DUT The pressure medium The user defined pressure medium density

Stability limit Stability limit Ready status

Baromet er PA/PM Barometer calibration date RPT range PA/PM RPT range calibration date

AutoZ on/OFF Run AutoZ

ZOFFSET for absolute mode ZOFFSET for gauge mode ZNATERR (absolute mode only)

:DISPlay

BLANking PAGE RPT?

:FETCh[n]

:[PRESsure]? :RATE?

…...

0..99 min

1..7 Query only

……

Query only Query only

…... Screen saver period Changes the DISPLAY function Gets all 3 of the RPT range values

…... Press result from a previous measur em ent Rate result from a previous measur em ent

COMMAND PARAMETERS NOTES

:INITiate[ n]

[:IMMediat e] :CONTinuous

RPM3/HPMS A30000/ A6000- AF Operation and Mai ntenance Man ual

Table 11. Com mand Summary (Cont inued)

Items inside brackets [ ] are optional. A ‘|’ character signifies a logical ‘or’.

[n] specifies the RPT channel (‘1’ Hi, ‘2’ Lo. Default is ‘1’).

[nn] specifies the optional RPT range from 1 to 3 (default is ‘1’).

…... Command only 0|1|OFF|ON

…... Starts a new single measurement cycle Disable/Enable continuous measurement

:MEASure[ n]

[:PRESsure]? :RATE?

SENSe[n]

[:PRESsure]

:PROTection

:LEVel

:TRIPped? :CLEar

:AVERage

:COUNt :AUTO

:READ[n]

[:PRESsure]? :RATE?

:STATus

:OPERatio n

:CONDition? :NTRAnsition :PTRAnsition [:EVENt] :ENABle :INSTrument

:CONDition? :NTRAnsition :PTRAnsition [:EVENt] :ENABle :ISUMmary[n]

:ABSolute :GAUGe

:CONDition? :NTRAnsition :PTRAnsition [:EVENt] :ENABle

…... range, resolution range, resolution

…...

Upper Limit Upper Limit Query only Command only

0..10 0 |1|OFF|ON

…... Query only Query only

Query Only

0..32767

0..32767 Query Only

0..32767

0..32767 Query Only

0..32767

…... Start and get new pressure m easur em ent Start and get new rate m easur em ent

......

The absolute mode upper limit (UL) alarm The gauge mode limit (UL) alarm Check if UL has been exceeded Clears the “TRIPped” flag

The # of measurements t o aver age Disable/enable the auto read rate

…... Start and get new pressure m easur em ent Start and get new rate m easur em ent

Read the condition register Reads or sets the negative transition f ilter Reads or sets the positive transition filter Reads or sets the event register Reads or sets the event enable

Fluke HPMS A30000, HPMS A6000-AF, RPM3 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

TABLE OF CONTENTS ................................................................................i

1. INTRODUCTION

1.1 PRODUCT OVERVIEW

1.2 SPECIFICATIONS

2. INSTALLATION

2.1 UNPACKING AND INSPECTION

2.2 SITE REQUIREMENTS

2.3 INITIAL SETUP

2.4 POWER UP AND VERIFICATION

2.5 SHORT TERM STORAGE

3. OPERATION

3.1 GENERAL/MANUAL OPERATION

3.2 DIRECT FUNCTION KEYS

3.3 [SETUP] MENU KEY

3.4 [SPECIAL] MENU KEY

4. REMOTE OPE RATION

4.3 REMOTE COMMAND SYNTAX AND STYLE

4.4 COMMANDS