Druck PACE5000, PACE6000 Operating Manual

Digital Solutions

Pressure Automated Calibration Equipment

User manual - K0443 Revision A

PACE5000

PACE6000

© 2008 General Electric Company. All Rights Reserved. Specifications are subject to change without notice. GE is a registered trademark of General Electric Company. Other company or product names mentioned in this document may be trademarks or registered trademarks of their respective companies, which are not affiliated with GE.

PACE Pressure Controller User Manual

Introduction

This manual contains Installation and operating instructions for PACE Pneumatic Pressure Controllers.

Safety

The manufacturer has designed this equipment to be safe when operated using the procedures detailed in this manual. Do not use this equipment for any other purpose than that stated, the protection provided by the equipment may be impaired. This publication contains operating and safety instructions that must be followed to make sure of safe operation and to maintain the equipment in a safe condition. The safety instructions are either warnings or cautions issued to protect the user and the equipment from injury or damage. Use qualified * technicians and good engineering practice for all procedures in this publication.

Pressure

Do not apply pressures greater than the maximum working pressure to the equipment.

Toxic Materials

There are no known toxic materials used in construction of this equipment.

Maintenance

The equipment must be maintained using the procedures in this publication. Further manufacturer’s procedures should be carried out by authorized service agents or the manufacturer’s service departments.

Technical Advice

For technical advice contact the manufacturer. * A qualified technician must have the necessary technical knowledge, documentation,

special test equipment and tools to carry out the required work on this equipment.

General Specification

Display LCD: Colour display with touch screen

EMC EN61326

Electrical safety EN 61010-1, UL61010-1, CSA 22.2, No. 61010-1 and IEC 61010-1

PACE 5000: Input range: 100-240V (50/60Hz) 2A, Installation Catergory II, Fuse

Power Supply

Pressure safety Pressure equipment Directive - class: sound engineering practice (SEP)

T2AH250V

PACE 6000: Input range: 100-120/200-240V (50/60Hz) 5A, Installation Catergory II, Fuse T5AH250V

[EN] English i K0443 Revision A

Environmental Conditions

Operating Environment Indoor use only Operating temperature 10°C to 50°C (50° to 122°F) Storage temperature -20°C to 70°C (-4° to 158°F) Ingress protection IP20 (EN60529) Operating humidity 5% to 95% RH (non-condensing) Vibration MIL-PRF-28800 Type 2 class 5 Style E/F Operating altitude Maximum 2000 metres (6560ft) Pollution degree 2

Abbreviations

The following abbreviations are used in this manual; the abbreviations are the same in the singular and plural.

a Absolute min Minute or minimum a.c Alternating current mm millimetre ALT Altitude mV millivolts ASCII American Standard Code for Information Interchange MWP Maximum working pressure BSP British pipe thread No Number CAS Calibrated airspeed NPT National Pipe Thread

CSK Countersunk PACE

d.c. Direct current Para. Paragraph DPI Digital Pressure Instrument PDCR Pressure transducer etc. And so on PED Pressure equipment directive e.g. For example psi Pounds per square inch Fig. Figure PTX Pressure transmitter ft Foot ROC Rate of climb (vertical speed) g Gauge RS232 Serial communications standard GPIB General purpose interface bus Rt CAS Rate of Calibrated airspeed Hg Mercury Rt MACH Rate of MACH Hz Hertz Rx Receive data

IAS Indicated airspeed SCPI

IDOS Intelligent digital output sensor (GE product) SDS Sales data sheet

i.e. That is SELV

IEEE 488

in Inch UUT Unit under test kg kilogram V Volts

kts knots +ve Positive m Metre -ve Negative mA milliampere °C Degrees Celsius max Maximum °F Degrees Fahrenheit mbar Millibar

Institute of Electrical and Electronic Engineers standard 488 (for programmable devices with a digital interface)

Tx Transmit data

Pressure automated calibration equipment

Standard commands for programmable instruments

Separated (or Safety) extra low voltage

K0443 Revision A ii [EN] English

PACE Pressure Controller User Manual

Related publications

K0447 PACE 5000/6000 User Guide and Safety Instructions

K0450 PACE Series Calibration Manual

K0476 Pressure Control Module User Guide and Safety Instructions

K0472 Remote Communications Manual

K0469 Heritage Communications Manual - Instrument Emulation

Symbols

This equipment meets the requirements of all relevant European safety directives. The equipment carries the CE mark.

This symbol, on the equipment, indicates that the user should read the user manual.

This symbol, on the equipment, indicates a warning and that the user should refer to the user manual.

Ce symbole, sur l’instrument, indique que l’utilisateur doit consulter le manuel d’utilisation. Ce symbole, dans le manuel, indique une situation dangereuse.

This symbol warns the user of the danger of electric shock. Ce symbole alerte l’utilisateur sur le danger de choc électrique.

Do not dispose of this product as household waste. Use an approved organisation that collects and/or recycles waste electrical and electronic equipment. For more information, contact one of these:

- Our customer service department: www.gemeasurement.com

- Your local government office.

[EN] English iii K0443 Revision A

WARNINGS

TURN OFF THE SOURCE PRESSURE(S) AND CAREFULLY VENT THE PRESSURE LINES BEFORE DISCONNECTING OR CONNECTING THE PRESSURE LINES. PROCEED WITH CARE.

ONLY USE EQUIPMENT WITH THE CORRECT PRESSURE RATING.

BEFORE APPLYING PRESSURE, EXAMINE ALL FITTINGS AND EQUIPMENT FOR DAMAGE. REPLACE ALL DAMAGED FITTINGS AND EQUIPMENT. DO NOT USE ANY DAMAGED FITTINGS AND EQUIPMENT.

DO NOT EXCEED THE MAXIMUM WORKING PRESSURE OF THE INSTRUMENT.

THIS EQUIPMENT IS NOT RATED FOR OXYGEN USE.

THE GROUND LEAD OF THE INSTRUMENT MUST BE CONNECTED TO THE AC SUPPLY PROTECTIVE SAFETY GROUND.

ISOLATE THE POWER SUPPLY BEFORE MAKING ANY ELECTRICAL CONNECTIONS TO THE REAR PANEL.

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PACE Pressure Controller User Manual

Pressure units and conversion factors

Pressure units Factor (hPa) Pressure units Factor (hPa)

mbar 1.0

bar 1000.0

cmH

O @ 20°C

0.978903642

97.8903642

Pa (N/m

)

hPa 1.0

0.01

kg/m

kg/cm

0.0980665

980.665

kPa 10.0 torr 1.333223684

MPa 10000.0 atm 1013.25

mmHg @ 0°C 1.333223874 psi 68.94757293

cmHg @ 0°C 13.33223874

mHg @ 0°C 1333.223874

inHg @ 0°C 33.86388640341

mmH

cmH

mmH

O @ 4°C

O @ 20°C

0.0980665

0.980665

98.0665

0.097890364

inH

inH20 @ 60°F

ftH2O @ 4°C

ftH2O @ 20°C

ftH20 @ 60°F

lb/ft

O @ 4°C

O @ 20°C

0.4788025898

2.4908891

2.486413

2.487641558

29.8906692

29.836983

29.8516987

Unit Conversion

Convert FROM pressure VALUE 1 in pressure UNITS 1 TO pressure VALUE 2 in pressure UNITS 2, calculate as follows:

VALUE 2 = VALUE 1 x FACTOR 1

FACTOR 2

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Section Title Page

1 Description 1-1

1.1 Introduction 1-1

2 Installation 2-1

2.1 Packaging 2-1

2.2 Packaging for Storage and Transportation 2-1

2.3 Preparation for Use 2-1

2.4 Pneumatic connections 2-2

2.5 Rack-mount option 2-8

2.6 Electrical connections 2-9

3 OPERATION 3-1

3.1 Preparation 3-1

3.2 Power-up Sequence 3-2

3.3 Measure Mode 3-3

3.4 Control Mode 3-6

3.5 Operation and Example Procedures 3-10

3.6 Global Set-up Selections 3-14

3.7 Barometric Reference Option 3-15

3.8 Supervisor Set-up 3-16

3.9 Instrument Status 3-17

4 MAINTENANCE 4-1

4.1 Introduction 4-1

4.2 Visual inspection 4-1

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PACE Pressure Controller User Manual

4.3 Cleaning 4-1

4.4 Test 4-1

4.5 Calibration 4-2

4.6 Replacement parts 4-2

4.7 Fuse replacement 4-2

4.8 Filter replacement 4-4

4.9 Pressure module replacement 4-5

5 TESTING AND FAULT FINDING 5-1

5.1 Introduction 5-1

5.2 Standard Serviceability Test 5-1

5.3 Fault Finding 5-3

5.4 Approved Service Agents 5-3

6 REFERENCE AND SPECIFICATION 6-1

6.1 Installation notes 6-1

6.2 Operational Requirements 6-4

6.3 Icons 6-6

6.4 Measure Set-up 6-9

6.5 Control Set-up 6-10

6.6 Global Set-up 6-11

6.7 Supervisor Set-up 6-12

6.8 Options 6-24

6.9 Calibration 6-41

6.10 Communications - Instrument Emulation 6-41

6.11 Specification 6-41

6.12 Return Goods/Material Procedure 6-41

6.13 Packaging Procedure 6-42

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6.14 Vacuum System Parts 6-43

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PACE Pressure Controller User Manual

1Description

1.1 Introduction

The PACE5000 single-channel and PACE6000 single/dual-channel, Pressure Automated Calibration Equipment measures and controls pneumatic pressures and displays, on a touch-screen, the pressure measurement and controller status. The touch-screen enables selections and settings in both measure and control modes. The instrument can be operated remotely through communication interfaces.

Figure 1-1 PACE5000 General view

Figure 1-2 PACE6000 General view

The rear of the instrument houses all the electrical and pneumatic output and input connections. The electrical connections provide an a.c. power supply, serial and parallel communication interfaces, d.c. output and logic input and output. The system pneumatic controller module contains a positive and negative pressure supply port, an output port, vent port and reference port.

The instrument can be mounted in a standard 19 inch rack system (rack-mount option).

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1 Description

Figure 1-3 PACE5000 Rear view

Figure 1-4 PACE6000 Rear view

Options available are detailed in the product datasheet.

Information and notes on applications (Ref: Reference and Specification, Section 6) or

www.gemeasurement.com

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PACE Pressure Controller User Manual

2 Installation

2.1 Packaging

Check the contents of the PACE5000/6000 packaging with the list that follows:

Packaging List

i) PACE5000 or PACE6000 Pressure Controller. ii) Cable, power supply. iii) User guide and CD (UD-0001) containing the full documentation suite. iv) Pneumatic Control Module blanking plate (keep this plate for future use).

CAUTIONS

After removing a control module, use a blanking plate to keep the flow of cooling air.

After unpacking an instrument that has been in cold conditions allow time to stabilise and any condensation to evaporate.

2.2 Packaging for Storage or Transportation

To store or return the instrument for calibration/repair do the procedures that follow:

1. Pack the instrument (Ref: Reference and Specification, Section 6.8).

2. Return the instrument for calibration/repair complete the return goods procedure (Ref:

Reference and Specification, Section 6.8).

Note: The procedure above applies to the pressure control module as a separate item.

2.3 Preparation for Use

The instrument can be used as a:

• Free-standing instrument positioned on a horizontal surface.

• Rack-mounted in a standard 19 inch rack using the rack-mount option kit (Ref: Section

2.5, Rack-mount option).

For free-standing instruments, the feet on the front of the base can be used elevate the instrument to a better viewing angle.

Note: Do not obstruct the air cooling outlet on the underside of the instrument and allow a free

flow of air around the instrument, especially at high ambient temperatures.

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2 Installation

Parallel threads must be used. Female thread type is parallel thread to ISO228/1 (DIN ISO228/1, JIS B0202) G1/8

Tapered threads NOT allowed.

PACE pressure port

PACE rear panel

PACE pressure port

2.4 Pneumatic connections

WARNINGS TURN OFF THE SOURCE PRESSURE(S) AND CAREFULLY VENT THE PRESSURE LINES BEFORE

DISCONNECTING OR CONNECTING THE PRESSURE LINES. PROCEED WITH CARE.

ONLY USE EQUIPMENT WITH THE CORRECT PRESSURE RATING.

BEFORE APPLYING PRESSURE, EXAMINE ALL FITTINGS AND EQUIPMENT FOR DAMAGE. REPLACE ALL DAMAGED FITTINGS AND EQUIPMENT. DO NOT USE ANY DAMAGED FITTINGS AND EQUIPMENT.

DO NOT EXCEED THE MAXIMUM WORKING PRESSURE OF THE INSTRUMENT.

THIS EQUIPMENT IS NOT RATED FOR OXYGEN USE.

PARALLEL THREADS MUST BE USED. FEMALE THREAD TYPE IS PARALLEL THREAD TO ISO228/1 (DIN ISO228/1, JIS B0202) G1/8.

TAPERED THREADS NOT ALLOWED.

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PACE Pressure Controller User Manual

1 Connector 2 Bonded seal

Connection Port

Input

Output

Refer to the data sheet for a complete range of adaptors.

Pressure supply (Ref: Figure 2-1, Pneumatic connections)

1. The pressure supply must be clean, dry gas, nitrogen or air and at the correct pressure,

(Ref: Section 6, Reference and Specification).

2. Make sure the user systems can be isolated and vented.

3. Connect pressure and vacuum supplies to the SUPPLY + and SUPPLY - connection ports.

4. Connect the Unit Under Test (UUT) to the required output connection port.

supply + supply Output

Reference

ISO228/1 G 1/8 parallel threads (DIN ISO228/1, JIS B0202)

ISO228/1 G 1/8 parallel threads (DIN ISO228/1, JIS B0202)Vent

Figure 2-1, Pneumatic Connections

Note: For systems requiring NPT connections, please order optional NPT adaptors.

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2 Installation

Installation

The safety of any system incorporating the equipment is the responsibility of the assembler of the system.

The instrument requires a positive pressure supply, instruments operating in an absolute range or negative pressure range require a vacuum supply.

A vacuum supply should be used for a fast response for instruments operating near atmospheric pressure.

For dual channel operation two independent pressure and vacuum supplies can be used.

Figure 2-2, Pressure module rear view

Note: When using two pressure modules (Ref: Section 4.9, Pressure module replacement)

make sure that:

• The module with the highest pressure rating is fitted to the right hand side

Module 1 position as viewed from the rear of the product refer to (Ref: Fig 2-2)

• If two modules have the same pressure rating, make sure that the module with

the higher serial number is fitted to the right hand side Module 1 position as viewed from the rear of the product.

Note: All pneumatic connections must comply with the Pressure Equipment Directive (PED)

or other regional pressure standards.

Note: When connecting the output ports of two pressure modules together make sure both

are either:

• below 70 bar

• between 100 to 210 bar.

To prevent over-pressurisation of pneumatic parts and maintain compliance with the PED do not mix categories.

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PACE Pressure Controller User Manual

OUTPUT

SUPPLY

VENT REF

Supply equipment

Pneumatic supplies should have isolation valves and, where necessary, conditioning equipment.

The positive pressure supply should be regulated to between 110% of the full-scale pressure range and MWP stated on the control module.

To protect the instrument from over-pressure a suitable protection device (such as a relief valve or bursting disc) must be fitted to prevent over pressurization.

On instruments without a negative supply, the positive pressure discharges from the system to atmosphere through the negative supply port. Pipe the negative port to a safe discharge area or fit a diffuser to the negative port.

During system pressure vent operations, the pressure discharges from the system to atmosphere through the negative and vent ports. Pipe both ports to a safe discharge area or fit a diffuser to the negative port.

Pneumatic Connection Examples (Ref: Figures 2-3, 2-4 and 2-5)

The examples that follow show a single channel connection detail, using supply equipment described above.

Figure 2-3, Pneumatic Connections without vacuum supply

1) Pressure source 2) Conditioner 3) Filter

4) Regulate to between 110% full-scale and MWP 5) Diffuser*

6) Unit under test 7) Optional reservoir † 8) Protection device 

9) Optional differential connection  14) Manual external vent valves

a) Atmosphere

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2 Installation

OUTPUT

SUPPLY

VENT REF

Note: (Ref: Section 6, Reference and Specification) for details of other system components.

Figure 2-4, Pneumatic Connections with vacuum supply

1) Pressure source 2) Conditioner 3) Filter

4) Regulate to between 110% full-scale and MWP 5) Diffuser*

6) Unit under test 7) Optional reservoir † 8) Protection device 

9) Optional differential connection  10) Oil mist trap

11) Vacuum source 12) Normally open electrical release valve 13) Check valve **

14) Manual external vent valves a) Atmosphere

Note: The PACE option IO-VAC-SYS Vacuum System Check Valve Kit should be used in the

vacuum line mounted near the PACE CM -ve port to exhaust most HP gas directly to atmosphere. The vacuum buffer volume needs to be rated at least to the highest system pressure.

Note: (Ref: Section 6, Reference and Specification) for details of other system components

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PACE Pressure Controller User Manual

SUPPLY

OUTPUT

Figure 2-5, Pneumatic Connections with negative gauge pressure generator

1) Pressure source 2) Conditioner 3) Filter

4) Regulate to between 110% full-scale and MWP 5) Diffuser *

6) Unit under test 7) Optional reservoir †

9) Optional differential connection



10) Vacuum generator ‡ 11) Source pressure (regulated compressed air supply)

12) Exhaust to atmosphere 13) Check valve ** 14) Manual external vent valves

8) Protection device

a) Atmosphere

VENT REF



Notes: (Ref: Section 6 Reference and Specification) for details of other system components.

* High pressure gas exhaust - depending on pressure range. ** Optional vacuum system kit, allows the -ve port gas to be directly discharged to

atmosphere, by-passing the vacuum pump.

† Optimum controller transient response and minimum time to set-point may be

degraded if either the pneumatic supply or vacuum system has restricted flow. Installing a reservoir volume, which has larger capacity than the load volume, located in close proximity to the controller supply ports can improve the controller response.

‡ Optional negative gauge pressure generator kit.

 To protect the control module, for ranges of 70 bar and above from over-pressure a

suitable protection device (such as a relief valve or bursting disc) must be fitted to limit the applied supply pressure to below the MWP.

 Optional differential connection kit.

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2 Installation

2.5 Rack-mount option (Ref: Figure 2-6)

General

There must be enough space at the rear of the instrument for all the cables and pipes. The length of the cables and pipes must allow for the removal and fitment of the instrument. The cooling air of the instrument must not be obstructed. Allow a free flow of air through the equipment rack and around the instrument, especially at high ambient temperatures.

Figure 2-6 Rack-mounting

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PACE Pressure Controller User Manual

Procedure

1. Locate bracket in rack assembly

2. Remove the four M3x10mm countersunk screws from each of the instrument side panels.

3. Locate the two brackets

4. Secure with the four countersunk screws.

5. Support the instrument and connect the cables and pipes.

6. Refer to the electrical connections below before fitting the instrument into the rack.

7. Temporarily locate the two spigots * to each side of the equipment rack.

8. Locate and slide the instrument into the rack.

9. Locate the instrument on the spigots*.

10. Secure the instrument in the equipment rack with two of the screws and washers (supplied).

11. Remove the two spigots* and replace with the remaining two screws and washers (supplied).

2.6 Electrical connections

WARNINGS

THE GROUND LEAD OF THE INSTRUMENT MUST BE CONNECTED TO THE AC SUPPLY PROTECTIVE SAFETY GROUND.

 on each side of the instrument.

.

ISOLATE THE POWER SUPPLY BEFORE MAKING ANY ELECTRICAL CONNECTIONS TO THE REAR PANEL.

Connecting (Ref: Figure 2.7 Electrical connections)

1. Install an accessible power isolator to use as the disconnecting device in the power supply circuit.

2. For the power input power supply range, Installation Category and VA (Ref:

Introduction, General specification table).

Note: The power must be supplied by a fused or overload-protected power supply.

3. Connect the power supply to the instrument.

4. Switch the power supply on.

5. Check that the front panel display shows the power-up sequence (Ref: section 3.2,

Power-up sequence).

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2 Installation

1 IEC power connector 2 Fuse carrier 3 Fuse

Figure 2-7 Electrical Connections

Pressure Control Module Input and Output Connectors

24V DC Output @ 100mA maximum

4-way connector: pin “+” = +24 Vdc

pin “-” = 0 Vdc

An integral self-resetting fuse protects this output.

Logic (switch) Input

4-way connector: Input

Output

This facility can be used to trigger the instrument from a pressure switch contact during the Pressure Switch Task (Ref Section 3.4, Control Mode).

Connections are not polarised and can be connected either way. Integral opto-isolators protect this input circuit.

This facility can be energised by external SELV compliant equipment.

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PACE Pressure Controller User Manual

Communication Connections (Ref: Fig 2-8 Communication Connectors)

Connect the applicable connectors into the rear panel communications ports and, if appropriate, secure with the captive screws.

Note: Refer to the data sheet for a list of optional communication ports. Refer to the data sheet for a list of standard shipped communication ports. Set the required parameters in Supervisor Setup/communications menu, (Ref: Section 3.8,

Supervisor set-up).

Figure 2-8, Communication Connectors

1 RS232 3 IEEE488 4 USB B 5 USB A 6 Ethernet

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2 Installation

RS232 Interface

When using the RS232 interface, a cable must be connected directly from the instrument to a suitable port on the computer in a ‘point to point’ link. The pin connections for the 9-pin Dtype, RS232 connector and the relationship between the instrument and the RS232 control signals, together with device interconnection interface is shown in Table 2-1. The instrument is configured as Data Circuit Terminating Equipment (DCE).

Instrument Control Line Computer/Printer

Instrument

Function

RxD (I/P) 3  TxD 3 2

TxD (O/P) 2  RxD 2 3

GND 5  GND 5 7

CTS (I/P) 7  RTS 7 4

RTS (O/P) 8  CTS 8 5

Pulled

high

internally

Not

connected

Pulled

high

internally

Equipment

chassis

Connector

9-way

D-type

Pin No.

1 

4  DTR 4 20

6 

Connector

shell

Signal

Direction

 Cable Screen - 1

RS232

Terminology

RLSD (DCD)

DSR

DCE Ready

9-way D-type Pin No.

Table 2-1, RS232 Connections

Handshaking connections

Connector Type

25-way

D-type Pin No.

Software handshaking use: TXD, RXD and GND. Hardware handshaking use: TXD, RXD, GND, CTS, RTS and DTR.

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PACE Pressure Controller User Manual

IEEE 488 Interface

The interface complies with IEEE 488 standard. The IEEE 488 parallel interface connects a computer/controller to one or more PACE

instruments and other instruments. Up to 30 instruments can be connected through a high-speed data bus to the computer/

controller.

Note: The length of each IEEE 488 cable must be less than 3 metres to comply with the EMC requirements (Ref: Section 6,

Single Unit Installation (Ref: Figure 2-9)

1. Connect an IEEE 488 connector/cable assembly to the rear panel of the instrument.

2. Connect the other end of the connector/cable assembly to the IEEE 488 connector on the controller/computer.

3. Change the IEEE 488 communication parameters (Ref: Section 6.7, Supervisor set-up).

Multiple Unit Installation (Ref: Figure 2-9)

Reference and Specification).

To install multiple units use stacking plugs to

link the first instrument and second instrument as follows.

1 Connector to rear panel of first

instrument (Ref Illustration).

2 Connector from controller/computer

(Ref Illustration).

3 Connector to rear panel of second

instrument (Ref Illustration).

4. Connect the IEEE 488 connector on the controller/computer and the other connector into the next instrument.

5. Repeat this procedure for all the instruments in the system.

6. Use the Supervisor set-up (communications) menu on each instrument to set-up the required communication parameters (Ref: Section 3.8, Supervisor set-up).

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2 Installation

IEEE 488

ADDRESS 1

ADDRESS 2

ADDRESS N

(30 maximum)

678

DAV (DATA VALID)

NRFD (NOT READY FOR DATA)

NDAC (NO DATA ACCEPTED)

59101117

EOI (END OF IDENTIFY)

IFC (INTERFACE CLEAR)

SRQ (SERVICE REQUEST)

ATN (ATTENTION)

REN (REMOTE ENABLE)

123413

DIO1

DIO2

DIO3

DIO4

DIO5

141516

DIO6

DIO7

DIO8

1819202122

GND (6)

GND (7)

GND (8)

GND (9)

GND (10)

GND (11)

GND

12 CHASSIS/FRAMECHASSIS/FRAME

DATA /

STATUS

BAR

0V (GND)

Figure 2-9 - IEEE 488 Connection

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PACE Pressure Controller User Manual

3Operation

This section contains quick reference charts detailing all the available functions and the setup menu.

3.1 Preparation

Make sure the electrical cables and pneumatic pipes comply with the installation requirements (Ref: Section 2, Installation). Before use do the following:

1. If necessary, do the maintenance task (Ref: Section 4, Maintenance).

2. For bench-top, single instrument operation do the following:

a. Connect the instrument to the electrical supply.

b. Inspect the pneumatic hoses for damage, ingress of dirt and moisture.

3. Before use, the instrument should be tested.

4. Review and become familiar with the procedure before starting a process on a component or system.

Note: The touch-screen can be permanently damaged by sharp objects.

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3 Operation

3.2 Power-up sequence

The following sequences of operation shows the instrument display. Note: The following sequence is an example, the values and selections displayed depend on

the range(s) and options enabled in the instrument (Ref: Touch screen areas).

1. Set the power supply to ON:

2. The display shows the power-up sequence.

3. The instrument carries out a self-test. If the test finds a fault, the display shows an

error (Ref: Fault Finding and Testing, Section

5).

4. If the self-test is successful the system enables the touch screen and changes to measure mode.

5. The touch screen shows the measured pressure in the parameters selected in set-up.

6. The instrument is now ready for use.

Note: The PACE 6000 shows a single display

(default) this is the left hand pressure control module. Change to dual display in Global Setup/Display.

Touch screen areas

Measure set-up

Status (touch to enter control set-up

Control/Measure

Nudge down

Nudge up

Set-point entry

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PACE Pressure Controller User Manual

PACE5000

PACE6000

3.3 Measure mode

Pressure measurement of current selected sensor in current selected pressure measurement units

Current enabled functions

Nudge up, changed in control set-up

Nudge down, changed in control set-up

Control/measure selection

Current set-point value, change with numeric keys

Status area, changed in global set-up

Display Icons

Auto zero Control mode with overshoot Percentage

Reference level difference (gas head correction)

Control mode with no overshoot

Timed zero

Control mode active Filter pressure reading Tare enabled

Control mode passive Linear rate Zero

Control mode gauge Maximum rate

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3 Operation

current pressure reading to zero, offset stored for current range.

allows selection of available pressure ranges. Ê

PACE5000

PACE6000

select from list of available pressure measurement units.

Absolute range selection available when barometric option installed. Auto-range only available with two-channel instruments.

% Filter pressure reading Tare

Pressure zero

Range

Process

Task

Units

Global set-up

Set-up zero

Status

Measure set-up

Timed Auto Tare

Next page of menu options. Loops from last page to first page.

Stores settings and exits set-up.

see 3.6:-

next page:-

Exit set-up.

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PACE Pressure Controller User Manual

AUTO-RANGE (only available with two-channel instruments) Note: Not all Auto-Range and task functions are available using the remote

communications, this allows more flexibility to the remote programmer.

Controller Off – Increasing Set-point

With both controllers in Measure mode, if a set-point within the range of the lower ranged controller is entered and Control is then selected the lower ranged controller controls to the entered set-point.

With both controllers in Measure mode, if a set-point above the range of the lower ranged controller is entered and Control is then selected, then the range is changed to the higher ranged controller and this then controls to the entered set-point.

Controller Off – Decreasing Set-point

With both controllers in Measure mode, if a set-point within the range of the higher ranged controller is entered and Control is then selected the higher ranged controller controls to the entered set-point.

With both controllers in Measure mode, if a set-point above the range of the lower ranged controller is entered and Control is then selected, then the higher ranged controller will control to this set-point. When the controller is in limits then the range is changed to the lower ranged controller and this then controls to the entered set-point .

Controller On – Increasing Set-point

With the lower ranged controller in Control mode, if a set-point within the range of the lower ranged controller is entered then the lower ranged controller controls to the entered set-point.

If the set-point is increased to above the lower range but still within the higher range then the lower range controller switches off and that the higher range controller switches on and controls to the entered set-point.

Controller On – Decreasing Set-point

With the higher ranged controller in Control mode, if a set-point within the range of the higher ranged controller is entered then the higher ranged controller controls to the entered set-point.

If the set-point is decreased to within the lower range then the higher range controller will control to this set-point. When the controller is in limits then the range is changed to the lower ranged controller and this then controls to the entered set-point .

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3 Operation

SUPPLY

OUTLET VENT REF

Module 2

SUPPLY

OUTLET VENT REF

Module 1

Pressure

output

Pressure

source

Pressure regulator

Rear view of PACE6000 instrument

Control

Measure

3.4 Control Mode

In measure mode, press and the instrument changes to control mode.

Press and the instrument stops controlling pressure and changes to measure mode:

Key to display:

1 Current measured pressure value (in limits green, out of limits blue). 2 In active control mode.

Pressure reading filter ON. Head (pressure) value applied. Control mode with overshoot.

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Control

Tare enabled. 3 Press to switch between controlled pressure and measured pressure. 4 Nudge up. 5 Set-point, press and the display changes to numeric keys. 6 Nudge down. 7 Status area shows effort meter set in global set-up, press to enter control set-up.

Notes:

Active mode - control active, except in measure mode.

Passive mode - when the controller achieves inlimits condition, measure mode is automatically selected.

Gauge mode - when the controller achieves zero gauge inlimits condition, measure mode is automatically selected and the zero valve opens.

Controlling to a new set-point

1. To change the set-point value, touch the set-point area of the screen and the display shows the numeric keys.

2. Set the new set-point value.

3. If necessary, use the key to remove the last digit in the set-point value display.

4. To save the new set-point, touch the set-point area of the screen. This returns the display to the measured pressure screen and showing the new set-point.

5. Touch the escape to leave the numeric setting unchanged.

6. To control pressure to the new set-point value press the key.

7. The display shows the pressure value changing as the instrument controls to the new set-point, at the set rate of change.

Note: When changing from measured to controlled mode the displayed pressure digits

change from black (measured pressure) to blue (controlled pressure out of limits) to green (controlled pressure in-limits).

8. If enabled, the effort meter shows the effort the controller exerts to achieve the set-

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3 Operation

Control

Measure

point.

9. The status area can be changed to various displays showing pressure and controller performance.

Effort meter Note: In normal controlled pressure conditions the effort meter stays within the band (green).

If the status indicator moves outside the band there may be a leak into or out of the system.

Controlling to ambient/zero pressure

1. Use the numeric key display and set the new set-point value to ambient or zero gauge pressure.

2. When the display shows the new set-point value, press the key.

3. The display shows the pressure value changing as the instrument controls to the new set-point, at the set rate of change.

4. When the display shows ambient or zero pressure, press the key to switch off the controller and return to measure mode.

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PACE Pressure Controller User Manual

Vent

Nudge resolution

Set-point limits

Slew rate

Control mode

Global set-up

Control set-up

Status

Vent set-up

Replaced by Go to Ground when in aeronautical option.

Exit set-up.

Upper Lower Enable/disable

Yes/No Ê

Sets set-point nudge resoultion.

to 7th digit.

Linear - Enter units/second Maximum rate Toggle between: fast/no overshoot

Active - Continuous control to set-point Passive - Controls outside user defined band Gauge - Controls from zero gauge to set-point

see 3.6:-

see 3.9:-

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3 Operation

Selecting a task exits the menu and changes the display to the task selected.

Exit set-up.



Option refer to 6.8.

Enable

Set-up

Basic

Leak test

Switch test

Test program

Divider

Preset

Task

Start program Set-up Step

Stop

Enable

Set-up

Select program

Enable

Set-up - select a preset and store new values.



3.5 Operation and Example Procedures Introduction

Before operation, the instrument must be connected to the correct electrical and pneumatic supplies (Ref: Section 2, Installation).

Switch the instrument ON, the display shows measured pressure mode (except when regulator mode is selected) and the task set before the power-off.

Measure and Control Modes

The instrument operates in the two modes that follow:

• Measure mode, the instrument works as a precision pressure indicator and shows the

pressure measured at the output port.

• Control mode, the instrument works as a precision pressure controller and shows the

controlled pressure measured at the output port. Pressing Task enables various predetermined functions:

Task

The display shows the task screen. When selected, e.g. Basic, the screen changes to show the selected task.

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PACE Pressure Controller User Manual

Control

Measure

Task

To control pressure in the task do the following:

1. Select the required units of pressure measurement from the measure set-up menu.

2. Press the status area and enter control set-up.

3. Select the required slew rate. Note: The display changes to show the type of slew rate selected.

4. Select the required vent slew rate in vent set-up.

Caution Use the vent set-up to prevent damage to rate-sensitive equipment connected to

this controller. The vent slew rate setting is independent of the controller slew rate settings.

5. Return to the task screen. In basic task, use the numeric keys to enter a set-point.

6. Press the status area and enter control set-up, select the required slew rate.

7. Press the key to start controlling pressure.

8. The screen display changes as follows:

• The current pressure reading changes from black to blue.

• If enabled, the effort meter indicates the amount of work done (effort) by the controller.

9. When the controller achieves the selected pressure set-point, the screen display changes as follows:

• The current pressure reading changes from blue to green.

• If enabled, the effort meter shows the controller effort to keep the pressure at

the set-point.

10. On completion of testing, select control set-up and select Vent to reduce the system pressure to near atmospheric pressure.

Note: This feature should be used to reduce system pressure to a safe value before

disconnecting the Unit Under Test. The vent valve opens and remains open until a key press or receipt of a

communications command. Always use the vent function before disconnecting pressure equipment from the

output port.

11. Press the key to return to measure mode. The screen display changes as follows:

• The current pressure reading changes from blue/green to black.

• If enabled, the effort meter indicates the controller at rest.

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3 Operation

Divider

High

Low

Number of points

Divider

Divider parameters

Set-point

Divide as set-up.

Start control mode.

32451

R ÷ 4

nopq

Divider

Select and set-up the divider task by pressing Divider from the task screen. The divider menu specifies high set-point, low set-point and then divides the span into a number of equal test points (min 2, max 25).

Divider menu structure

Select required units, Rate, etc. in the set-up menus. When Divider is then entered from the Task menu, these test point pressures and number of test points can be set.

By entering control mode, this allows the Divider sequence of test pressures (and controlled at the selected rate).

Example:

High set-point = 2 bar Low set-point = 0 bar Number of points = 5 Test pressures = 0, 0.5, 1, 1.5 and 2 bar

pressure

* controlled pressure to each set-point

Number of points

range between low set-point (1) and high set-point (5)

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PACE Pressure Controller User Manual

Preset

Preset Preset as set-up

Set-up

Value

n o p q r

-250

-150

-50 0

+50

-250

250

150

100

-50

-150

-100

-200

200

Preset

The Preset function allows individual set-point values can be defined for each of 25 set-points.

The set-up function displays a preset number.

Pressing the soft key for that number assigns a pressure value to the key.

After setting all the 25 preset pressures, enter control mode.

Press a soft key to change to the pressure assigned to that key (and *controlled at the selected rate).

P = pressure T = time

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3 Operation

Supervisor set-up

Calibration

Global set-up

Save/recall user set-up

Save current user set-up

Recall current user set-up

Display

- % brightness

- Timer (time-out) setting

Resolution - Measure display resolution

Back light

Audio volume - % of full volume Satus area Dual/single display PACE6000 only

3.6 Global Set-up Selections

Global set-up selections provide access to the instrument‘s settings for both measure and control modes.

The set-up menu that follows provides PIN-protected access to the supervisor set-up and calibration.

Pressing Global Set-up from measure or control set-up menu changes the touch-screen display to show the following selections:

• Supervisor Set-up

• Calibration

• Save/Recall User Set-up

• Display

1 Selections 2 Escape Key

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PACE Pressure Controller User Manual

Status area examples

Full-scale

In-Limits meter

Effort meter

Vent and +ve FS

Zero and +ve FS

Barometric

Status area settings

Enables the user to view an operating condition or parameter of the instrument:

Full-scale - pressure in current selected units of the pressure range. Source Effort meter In Limits meter Module logic I/P Vent and +ve FS Zero and +ve FS Rate Barometric Tare

Analogue Output - If option installed P1 - P2 - Displays Module1 pressure minus Module2 pressure (P2-P1)

- positive and negative source pressure values in current selected units.

- indicates controller effort.

- indicates controller in-limits condition and time to in-limits.

- indicates status condition of logic input of control module.

- enables vent selection and shows full-scale pressure in current selected units.

- enables zero selection and shows full-scale pressure in current selected units.

- indicates slew rate set.

- displays barometric pressure.

- indicates tare condition and value.

3.7 Barometric Reference Option

If installed, this option allows absolute or gauge pressure range selection. To obtain absolute pressure the instrument uses a summation of gauge pressure and barometric pressure (measured by the barometric sensor). (Ref: Section 6.8

Options) and the data sheets for the

performance of barometric reference and precision of absolute ranges.

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3 Operation

enter four digit code (0268)

Enable/disable

Protective Vent

In Limits

Alarms

Communications

Time out

Restore last settings

Supervisor

next page:-

Pressing the escape key stores settings and returns to global set-up.

High source pressure Low source pressure Enable/disable high pressure Enable/disable low pressure

IEEE488 RS232 USB Ethernet

% full-scale

Time period - time to stay in limits before trigger indication

Idle time out - Enable/disable

Gas head correction

Enable/

disable

Head - in or m Local gravity - m/s

Barometric - mbar Reference port medium* Test port medium* Temperature (gas) Humidity (gas)

*air or nitrogen

Power-up

Normal

Regulator - Power-on set-point

Lock

Lock/unlock individual tasks

Lock/unlock all tasks

Lock tasks

Change PIN

Enter new PIN

Re-enter new PIN

Enter new supervisor PIN

User defined units

Enter the name of the defined units

Enter the equivalent value in Pascals

User defined units user unit 1

Instrument alias name

Language

next page:-

Restore previous defaults Y/N?

3.8 Supervisor set-up

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PACE Pressure Controller User Manual

Instrument

Software build

Hardware build

Instrument Status

IEEE488*

Instrument Main Code Instrument OS Build Instrument Boot ROM Module (1) Main Code Module (1) Boot ROM Analogue O/P Main Code Analogue O/P Boot ROM VFC Main Code VFC Boot ROM Module (2) Main Code Module (2) Boot ROM

Additions to the standard instrument

Pressing the escape key stores settings and returns to global set-up.

History

Calibration Valve correction Zero Software Message

Communications

RS232*

* current settings, see 6.7

Current set-up

Zero In Limits High Alarm Low Alarm Slew Rate

Power Up

Use log

Operation time*

Control time*

* days, hours and minutes

PACE5000

Use log

next page:-

3.9 Instrument Status

The control set-up menu provides access to the status of the instrument:

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3 Operation

Example

Next page of menu options. Loops from last page to first page.

Exit set-up.

Instrument Main Code

Software history

next page:-

Analogue O/P Main Code

Instrument OS Build

Instrument Boot ROM

Module (1) Main Code

Module (1) Boot ROM

Analogue O/P Boot ROM

VFC Main Code

VFC Boot ROM

Module (2) Main Code

Module (2) Boot ROM

Software

Software history, in the status menu, provides read only information on the current software in the instrument.

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PACE Pressure Controller User Manual

4 Maintenance

4.1 Introduction

This section contains the routine maintenance and procedures to replace components (Ref:

Section 5, Testing and Fault Finding) and listed (Ref: Table 4.2).

Table 4.1 - Maintenance Tasks

Task Period

Visual Inspection Before use

Cleaning Weekly*

Test Before use

Calibration 12 months †

Pressure Module filters Determined by usage.

Replace Pressure Module

* may change depends on usage (e.g., rack mounted, bench top) and environment (e.g., humidity, dust).

† may change depends on the required accuracy.

4.2 Visual Inspection

Inspect for obvious signs of damage and dirt on the following: a.External of the instrument.

b.Power supply connector and power lead. c.Associated equipment. Damaged parts must be replaced contact GE Service.

4.3 Cleaning

Caution Do not use solvents for cleaning.

Clean the front panel with a damp lint-free cloth and mild detergent.

4.4 Test

Do a standard serviceability test (Ref: Standard Serviceability Test, Section 5.2).

Pressure controller operating hours.

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4 Maintenance

4.5 Calibration

The instrument should be returned to the manufacturer or calibration facility, (Ref: Return

Goods /Material Procedure, Section 6.12).

To find the date of the last calibration, press Measure set-up/Status/Calibration history.

4.6 Replacement Parts

Use only the replacement parts listed (Ref: Table 4.2, Replacement Parts List).

WARNINGS

TURN OFF THE SOURCE PRESSURE AND CAREFULLY VENT THE PRESSURE LINES BEFORE DISCONNECTING THE PRESSURE LINES FOR MAINTENANCE. PROCEED WITH CARE.

ISOLATE THE INSTRUMENT POWER SUPPLIES BEFORE REPLACING PARTS, WITH POWER APPLIED THE INSTRUMENT CONTAINS LETHAL VOLTAGES.

Table 4.2 - Replacement Parts List

Part number Description

- Fuse T2AH250V (PACE5000)

- Fuse T5AH250V (PACE6000) IO-FILTER-KIT Kit, filter CMX-XXXX † Module, pressure control

† refer to data sheet

4.7 Fuse Replacement (

Ref: Figure 4.1

Fuse Replacement)

(Ref: Testing and Fault Finding, Section 5) when to replace the fuse.

Remove

1. Set the power switch to OFF (if not rack-mounted got to step 3).

2. For access to rack-mounted instruments, the following actions maybe required: a) Partially or completely withdraw the instrument. b) Isolate pneumatic supplies. c) De-pressurise all pressure supply inlet and output lines.

Isolate the power supply to the instrument and disconnect the IEC power supply connector (1).

4. Remove the fuse carrier (2) from the power supply input socket assembly.

5. Remove the fuse cartridge (3).

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PACE Pressure Controller User Manual

Replace

1. Check for the correct type of fuse (Ref: Table 4.2 Replacement Parts List).

2. Replace the fuse.

3. Refit the fuse carrier (2) in the power supply inlet socket assembly.

4. Refit and reconnect rack-mounted units (Ref: Installation, Section 2).

5. Switch on the power supply and set the power supply switch to ON.

6. If the fuse blows immediately with power-on, contact the manufacturer or Service Agent.

1 - IEC connector 2 - Fuse carrier 3 - Fuse

Figure 4-1, Fuse Replacement

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4 Maintenance

4.8 Filter replacement (Ref: Figure 4-2, Pressure module filters)

Remove

1. Set the power switch to OFF (if not rack-mounted got to step 3).

2. For access to rack-mounted instruments, completely withdraw the instrument from the rack.

3. Depressurize the system and isolate the pneumatic supplies.

4. Set to off and then disconnect the electrical power supply.

5. Disconnect the pneumatic pipes to the pressure module.

6. Release the four cross-head screws (drive size 2) securing the pressure module in the instrument case.

7. Remove the pressure module to access to the filters.

8. Use a 5 mm hexagonal key, to release the filter retainer (1).

9. Remove the five filters (2), if necessary, invert the pressure module to aid removal.

1 - Retainer 2 - Filter

Figure 4-2 Pressure module filters

Replace

1. Insert a new filter in each of the pressure connection.

2. Use a 5 mm hexagonal key, to secure each filter retainer (Do not over tighten).

3. (Ref: Installation, Section 2).

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PACE Pressure Controller User Manual

4.9 Pressure module replacement (Ref: Figure 4-3, Pressure module)

WARNING

TURN OFF THE SOURCE PRESSURE AND VENT THE PRESSURE LINES BEFORE DISCONNECTING OR CONNECTING THE PRESSURE LINES. PROCEED WITH CARE.

1 - Pressure module 2 - Instrument case 3 - Blanking plate

Figure 4-3 Pressure module

Remove

1. (Ref: Filter replacement, Remove, Section 4.8).

2. Fit the blanking plate (supplied) to protect the internal components.

Replace

1. Fit a fully compatible pressure module (1) into the instrument case (2).

2. (Ref: Installation, Section 2).

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4 Maintenance

Intentionally Blank

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PACE Pressure Controller User Manual

Control

5 Testing and Fault Finding

5.1 Introduction

This section details the standard serviceability test. (Ref: Fault Diagnosis, Table 5.1) for possible faults, and the response.

The PACE instrument contains a self-test and diagnosis system that continuously monitors the performance of the unit. At power-up, the system performs a self-test.

5.2 Standard Serviceability Test

The following procedure shows if the unit is serviceable and checks functions and facilities of the PACE instrument.

Procedure

1. Connect the instrument (Ref: Installation, Section 2) Connect a pressure measurement

device to the output port.

2. After power-up, select measure set-up.

a. Select the required units of pressure measurement from the measure set-up

menu. b. Press the status area to enter control set-up. c. Select the effort meter. d. Select the required control slew rate and vent rate. e. Press set-point and, using the numeric keys, set a value within the pressure

range of the instrument. f. Check the screen display shows the following:

• Selected units of pressure measurement

• Selected type of slew rate

• Set-point

g. Press the key to start

3. The screen display changes as follows:

a. The measured pressure digits change from black to blue and indicates the

pressure value changing towards the set-point. b. If enabled, the effort meter indicates the work effort of the controller.

[EN] English 5 - 1 K0443 Revision A

5 Testing and Fault Finding

4. When the controller achieves the selected pressure set-point, the screen display changes as follows:

a. The colour of the displayed pressure value changes from blue to green

indicating that the controller is within the in-limits tolerance.

b. If enabled, the effort meter shows the controller effort to keep the pressure at

the set-point.

c. Check the pressure measurement device indicates the approximate pressures

generated by the PACE controller.

5. Select vent and the pressure reduces to atmospheric pressure at a controlled rate (vent rate).

6. The test is completed when the controller is at atmospheric pressure.

Notes:

• The vent valve opens and remains open until OK is pressed.

• Always use the vent function before disconnecting pressure equipment from the output

port.

• The instrument automatically returns to measure mode.

• The colour of the displayed pressure value changes to black.

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PACE Pressure Controller User Manual

5.3 Fault Finding

Check the faults and responses (Ref: Fault Diagnosis, Table 5.1) before contacting

www.gemeasurement.com or a GE recommended Service Agent

Fault Response

Power supply connected, display not lit. Check rear panel switch set to on.

Check fuse and, if necessary, replace Check electrical power supply fuse or circuit breaker.

24 V DC output intermittent. Over-load internal self-resetting fuse operating.

Reduce load current to specified value.

Instruments functions, but does not reach all set-points.

In measure mode with output port sealed, the pressure continues to increase or decrease.

Display pressure reading in red Over-range, use vent de-pressurize or vent manually. Instrument enters measure mode without user

request or command. Instrument will not zero. Blocked vent port.

Instrument controlling to set-point, no pneumatic output

Erratic or inaccurate zero Leaking isolation valve.

Increased gas consumption. Unstable control at set-point or does not achieve set-point.

If the controlled pressure stays within the tolerance band and the pressure at the output is within limits. If the controller status indicator is outside the tolerance band,

Table 5.1 - Fault Diagnosis

Check pneumatic supplies for correct pressures. Check system for leaks.

Increasing pressure, leaking Apply control valve. Decreasing pressure, leaking Release control valve. Confirm by isolating pressure supplies. Contact GE approved service agent.

Idle time-out enabled but timeout period setting too short.

Check for blockage. Contact approved service agent for repair.

Blocked isolation valve. Contact approved service agent for repair.

Reference port restrictor not fitted. Contact approved service agent for repair.

System leak. Carry out leak test. Contact approved service agent for repair. Reference port restrictor not fitted.

Leak in the system or the supply pressure differs from the pressure for which the control valves have been characterised.

5.4 Approved Service Agents

For the list of service centres logon to www.gemeasurement.com

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5 Testing and Fault Finding

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6 Reference and Specification

6.1 Installation notes

The PACE instrument pressure controller/calibrator requires an independent pressure supply and set of connections. The exception is the reference connection, this provides a reference to atmosphere for gauge sensors and barometric sensors.

The instrument must have the correct supply pressure and a suitable supply medium (Ref: Data sheet, specification).

The type and density of the supply gas does not affect the accuracy of pressure measurement, assuming that the Unit Under Test (UUT) is at the same height as the controller or gas head correction is accurately set.

Gas supply

For normal operation the instrument requires a positive supply of at least 110% of range but less than the MWP, with a gas regulator.

For absolute operation, negative gauge operation or, if the installation requires a fast response around atmospheric pressure, a vacuum source must be connected to the negative supply. For recommended configurations (Ref:, Installation, Section 2, figures 2-4, 2-

5 and 2-6).

To achieve control performance the source pressure must be maintained at 10% full-scale above the required set-point.

Controller performance is maintained during slow variations in source pressure down to a source pressure of 20% full-scale range.

Supply conditioning equipment

Supplies should be provided with an isolation valve and any other necessary conditioning equipment.

Note: To protect the control module

above 100 bar,

protection device (such as a relief valve or bursting disc) must be fitted to limit the applied supply pressure to below the MWP.

Maximum Working Pressure

If the measured +ve source pressure exceeds the limits below then display a persistent message box as shown. Clear this message by selecting “OK”.

[EN] English 6 - 1 K0443 Revision A

from over-pressure a suitable

, for ranges

6 Reference and Specification

Supply contamination

Supplies may need the removal of water, oil or particulate contamination. Any water in the compressed gas supply will be in vapour form, i.e. non-condensing and must be removed using a mist filter.

Oil must be completely removed performance.

The compressed gas supply must not contain particulates and must be removed using a particulate filter. Do not use a compressed gas supply containing corrosive material.

Systems without a negative supply

Without a negative supply (vacuum pump), release the positive pressure from the system to atmosphere through the negative supply port.

The release from the negative port must be piped away to where the discharge causes no disturbance or hazard. A diffuser may be fitted to the negative supply port to diffuse air flow.

The need for a negative supply (for optimum performance)

General Supply pressures (at least 110% of range but less than the MWP) there must be a difference

of 10% of full-scale between the supply pressure and the maximum output pressure. When operating at positive or negative full-scale, there must be a pressure difference between supply and output to cause a gas flow.

Operating near atmospheric pressure or below Any controller operating near atmospheric pressure or below requires a vacuum pump or

other negative supply connected to the negative supply port for optimum performance. Without a vacuum supply, as the output pressure approaches atmospheric pressure, the differential pressure approaches zero resulting in a reduced flow to the output. Reduced flow causes an increase in the time to control to atmosphere, especially with large user volumes, and an increased overshoot at low pressures, (Ref: Installation, Section 2,

figures 2-4, 2-5 and 2-6).

Vacuum Pump Each PACE Control Module has a vacuum sensor. Connect a vacuum pump to the -ve supply

port. The higher the flow rate of the vacuum pump the better the PACE control performance. Low pressure ranges <700mbar require vacuum regulation or the use of the negative gauge pressure generator IO-NEG-G-GEN-1 option.

as this causes a rapid deterioration of the control valve

Conclusion

Use a vacuum supply for: A vacuum supply improves:

Absolute ranges.

Negative gauge ranges. Control stability near atmospheric pressure.

K0443 Revision A 6 - 2 [EN] English

Time to reduce system pressure at pressures below 2 bar (30 psi), full-scale.

Overshoot at low pressures. To improve performance at or near gauge zero.

PACE Pressure Controller User Manual

Table 6-1 Air Density Values

Values of air density (kg m-3) for air of relative humidity 50% and containing 0.04% carbon dioxide by volume.

Air

pressure

(kPa)

87 88 89 90 91 92 93 94 95 96 97 98

99 100 101 102 103 104 105 106

Air temperature (°C)

14 16 18 20 22 24 26

1.052 1.045 1.037 1.029 1.021 1.014 1,006

1.064 1.057 1.049 1.041 1.033 1.025 1.018

1.077 1.069 1.061 1.053 1.045 1.037 1.029

1.089 1.081 1.073 1.065 1.057 1.049 1.041

1.101 1.093 1.085 1.077 1.069 1.061 1.053

1.113 1.105 1.097 1.089 1.080 1.072 1.064

1.125 1.117 1.109 1.100 1.092 1.084 1.076

1.137 1.129 1.121 1.112 1.104 1.096 1.088

1.149 1.141 1.133 1.124 1.116 1.108 1.099

1.162 1.153 1.145 1.136 1.128 1.119 1.111

1.174 1.165 1.156 1.148 1.139 1.131 1.123

1.186 1.177 1.168 1.160 1.151 1.143 1.134

1.198 1.189 1.180 1.172 1.163 1.154 1.146

1.210 1.201 1.192 1.184 1.175 1.166 1.158

1.222 1.213 1.204 1.196 1.187 1.178 1.169

1.234 1.225 1.216 1.207 1.199 1.190 1.181

1.247 1.237 1.228 1.219 1.210 1.201 1.193

1.259 1.249 1.240 1.231 1.222 1.213 1.204

1.271 1.261 1.252 1.243 1.234 1.225 1.216

1.283 1.274 1.264 1.255 1.246 1.237 1.228

Note: 100 kPa = 1 bar

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6 Reference and Specification

6.2 Operational Requirements

Caution

A contaminated UUT must have additional in-line filters connected between the output port and the UUT to prevent contamination of the instrument.

Negative or Vacuum Supply

The negative supply for absolute control does not need to be regulated. Any variation between this and absolute zero will affect instrument operation if controlling at low absolute pressures.

Oil Contamination

Precautions must be taken against oil transfer to the instrument. Recommended

1. A normally-open venting solenoid connected to atmosphere and the pump. When the pump supply is switched off, the valve opens allowing atmospheric pressure to enter the pump directly rather than through the pipe to the instrument.

2. If the above is not done, oil may progressively move up the supply pipe and into the instrument.

Pump Performance

Recommended for ranges above 2 bar (30 psi) gauge, positive full-scale

1. When installing a vacuum supply protect the vacuum pump against the discharge of positive pressure by the controller into the vacuum pump. This may result in reducing vacuum pump performance.

2. Use a check valve in the negative supply to vent excess pressure to atmosphere if the vacuum pressure rises above atmospheric pressure. The check valve should be installed on the instrument side of a volume which is approximately equal to the system volume. The volume slows any rapid pressure rise giving the vacuum pump time to reduce the pressure.

Note: A wide bore vacuum pipe can have enough volume and, used with a check valve,

could provide the necessary overpressure protection.

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Venting

Either a zero or vent operation uses the vent port. Vent The system gas at the output pressure can be released from the vent port. Unrestricted gas

flow occurs in this operation. Recommended Use a controlled method to reduce the system pressure, at a controlled rate, to near

atmospheric pressure then select vent. Zero During a zero operation only the internal volume of the instrument vents to atmosphere. Recommended Do not obstruct the vent port. To diffuse gas exhaust, a diffuser may be fitted to the vent

port.

Output Port

The output port provides the controlled test pressure to the UUT.

Reference Port

The reference port provides the negative pressure to the gauge sensor and to the barometric reference (option). Gauge sensors use this port identified as “REF”. For gauge sensors (without a barometric reference) small pressures can be applied (Ref: MWP stated on the rear panel of the control module). All other pressure measurement requires the port to be opened to atmosphere.

When in gauge mode, the instrument shows and controls the pressure difference between the reference port and the output port.

Note: This is not a true differential operation as there is no true differential calibration of the

sensor.

The transducer of the barometric reference option senses atmospheric pressure through the reference port, when enabled the port must be open to atmosphere.

The reference connection should be used (differential connection option) for precision low pressure measurement. The instrument controls pressure relative to the pressure at the reference port. An atmospheric pressure change causes the controller to adjust the pressure and appears at the pressure output as apparent instability. To keep a stable controlled pressure, the reference port should be restricted. Using a reference port restrictor, short term ambient pressure variations can be prevented from affecting controller performance.

The controller and UUT references should be connected together (using the optional differential connection kit ) to provide a common reference to atmosphere.

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6.3 Icons Display Icons in Set-up Menus

Icon Function Icon Function Icon Function

Active Aero mode Airspeed range

Alarm Altitude range Area of use

Asterisk Auto range Audio volume

Auto zero Backlight Calibration

Calibration history

Communications Contrast Control mode

Copy

Correction sensor

Current set-up Date & time Delete

Diagnostic analogue output

Diagnostic control sensor

Diagnostic RS232

Correction analogue output

Correction source sensor

Diagnostic barometric option

Diagnostic controller

Diagnostic source sensor

Change supervisor PIN

Correction SCM

Correction valve

Diagnostic general

Diagnostic vacuum sensor

Diagnostic voltfree

Divider Error Escape

Diagnostics Display

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Icon Function Icon Function Icon Function

Exclamation Fault history Gas head pressure

Gauge mode Global set-up Go-to-ground

Hardware build Home Idle time-out

IEEE488 Information In limits

Instrument

Language Leak test Lock

Lock tasks Logic output Max-min

Max peak Min peak Nudge

Passive mode Percentage PIN

Power-up Preset Pressure

Pressure filter Process Protective vent

Question Range Recall user set-up

Instrument accuracy

Instrument alias name

Reset use log Resolution Re-try

Roughing RS232

Restore to as shipped settings

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Icon Function Icon Function Icon Function

Restore settings 2 Run Save as shipped

Save recall user set-up settings

Screen saver SCM filter SCM zero

Select range

Set-point higher limit

Set serial number Set time Set-up zero

Slew rate linear Slew rate max rate Software build

Software upgrade history

Status area Step (single) Stop

Save user set-up Screen mode

Set-point disable/ enable

Set-point lower limit

Software upgrade Status

Set-point limits

Set date

Supervisor set-up Switch test Tare

Task Test program Test program copy

Test program delete

Timed zero Units User defined units

Use log Use log history Vent

Timing Time out

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Icon Function Icon Function Icon Function

Vent time out Vent Yes/No Vent set-up

Warning

Zero

Zero analogue output

Zero history

6.4 Measure Set-up

Pressure zero

During use, the instrument pressure sensor can show small zero shifts caused by time and temperature changes. Regular “zeroing” increases measuring precision.

Process

Selects display processing features that change the reading, as follows: %: Pressure can be expressed as a percentage of full-scale or as a percentage of a

specified span.

Filter: The reading can be filtered by a custom low pass filter or the filter can be disabled

(default disabled). The controller works at a speed independent of the filter time

constant.

Tare: A specific tare value can be selected or the current displayed pressure reading can

be “captured” as the tare value. The display shows the selected tare value in the pressure window.

Task

Selecting Task enables a set of pre-determined functions and software enabled optional functions.

Units

Select the new units from the list of pressure measurement units. Special units can also be defined (Ref: Global set-up,

Section 6.6, supervisor set-up).

Global set-up

(Ref: Global set-up,

Section 6.6).

Set-up zero

Mode = off/auto/timed Interval = 00.00.00 Isolation status = isolated/non-isolated.

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6.5 Control Set-up

Vent

Select Vent to reduce the system pressure to near atmospheric pressure. Use this feature to reduce system pressure to a safe value before disconnecting the UUT. Use vent set-up to adjust the slew rate of venting.

Note: The vent key can be selected in the control set-up menu or programmed as an on-

screen selection in the status area from the global set-up/ display/status area menu.

Nudge

Sets the incremental resolution of the nudge control for trimming the set-point digits.

Set-point Limits

Defines the limits of pressure that can be entered as a set-point (used for protecting sensitive UUT).

Slew rate

Sets how the controller achieves a set-point.

Max Rate Setpoint step changes to new setpoint Linear: Controller changing pressure linearly to set-point at a rate set by user. Rate: Either maximum rate or at a rate (value) set by user. Overshoot: Fast changing pressure may go beyond set-point. No overshoot: Changing pressure at an exponential rate but remaining within limits. Note: This function should be used for UUT that have hysteresis errors.

Control mode

Selects one of the three modes that follow: Active Control In this mode, the controller continuously maintains the set-point, compensating for small

pressure leaks and thermal affects. Passive Control In this mode, the user can define a band either side of the set-point, the default band equals

to the instrument’s precision. When the controlled pressure enters this band, the controller automatically shuts-off. If the measured pressure exits the band, the controller automatically re-establishes the pressure, without instability, the controlled pressure re-enters the band.

Note: If passive mode is in use with a leak free and thermally stable system then the control

stability contribution can be discounted from the uncertainty calculation. Zero Gauge Control The controller switches off once stable at zero gauge and the zero valve opened. Entering a

new set-point causes the zero valve to close and the controller starts to control to the new set-point.

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Global set-up

PIN protected menu (Ref: Supervisor set-up, Section 6.7).

Status

The display shows the following:

a. Instrument

• Module 1 (Module2 if fitted)

• Control sensor

• +ve source sensor

• -ve source sensor

• Barometric sensor (Optional) b. Software build - read only data c. Hardware build - read only data d. History - read only data e. Communications f. Current set-up - read only data g. Use log - read only data h. Software options - read only data i. Summary - read only data.

Vent set-up

Use the vent set-up to prevent damage to rate-sensitive equipment connected to this controller. The vent slew rate setting is independent of the controller slew rate settings.

6.6 Global set-up Supervisor set-up

PIN protected menu (Ref: Supervisor set-up, Section 6.7).

Calibration

PIN protected menu.

Save/recall user set-up

Save user set-up Recall user set-up

Display

Resolution Backlight Audio volume Status area Screen mode (PACE 6000 only)

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6.7 Supervisor Set-up

The Supervisor menu provides facilities for programming settings. These are made during

installation as follows:

Important Note:

A PIN protects the Supervisor menu against unauthorised use. Each instrument on delivery contains the factory set PIN (0268). To continue protecting the supervisor set-up menu the PIN should be changed as soon as possible.

Protective Vent

The protective vent can be enabled or disabled and causes the discharge of pressure at a controlled rate if the measured pressure exceeds 110% full-scale. This protects the pressure sensor from over-range.

The Power-up trapped pressure vent can be enabled or disabled from the protective vent menu.

In Limits

A tolerance value can be set at the set-point. When the controller achieves the set-point, the instrument controls within this set tolerance value. It does not affect controller stability or precision. The instrument uses the ‘in limits’ flag when performing a control task such as Leak Test or Switch Test.

Note: In remote control, the control computer can be used to interrogate the ‘in limits’

Alarms

An alarm can be set to trigger when the pressure exceeds the high alarm or falls below the low alarm. A buzzer sounds when the alarm triggers and the alarm symbol (bell) appears on the display.

Comms

Selects a communication port parameter. Simultaneous operation of both the RS232 and the IEEE 488 interfaces is fitted as standard.

The user can select appropriate settings for communicating with the control computer (PC) and the required command protocol. (Ref: K0472, SCPI Remote Communications Manual or K0469 Heritage Communications Manual).

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RS232 Located on the rear panel an external RS232 connection requires the following:

Connector 9-way ‘D’ female wired as per Table 2-1 Communications RS232 point-to-point only

(DPI 520 daisy chain is not supported) Baud Rate power-up default 9600, no parity & handshake = xon/xoff Baud rates selectable ** 2400, 4800, 9600, 19k2, 38k4, 57k6 & 115k2 Parity None, Odd & Even Flow control None, Hardware & xon/xoff Protocols † SCPI, DPI 500, DPI 510, DPI 515, DPI 520 New data up-date rate refer to data sheet Built-in EMC Filtering and Transient voltage protection ** Selectable through the user interface † Not all protocols available on all models.

IEEE 488 Located on the rear panel an external IEEE 488 connection requires: the following:

Connector 24-way ‘D’ female wired as IEEE 488 standard Communications IEEE 488 GPIB Default Address 16 Protocols † SCPI, DPI 500, DPI 510, DPI 515, DPI 520 New data up-date rate refer to data sheet Built-in EMC filtering and transient voltage protection. † Not all protocols available on all models.

Ethernet Located on the rear panel an external Ethernet connection requires the following:

Connector Ethernet RJ45 Protocol SCPI Terminator CR/LF Default Address Auto IP (0.0.0.0) Host name PACExxxxxx (where xxxxxx = serial number) Web Password 0268 Access control Open Reset LAN Settings Selected in Supervisor set-up menu

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Ethernet Firewall A firewall protects the Ethernet connection. The firewall is always turned on. The following ports are unfiltered to allow remote communication and control.

Port Description

80/tcp http (Web server) 111/tcp rpcbind (RPC for VXI) 111/udp rpcbind (RPC for VXI) 443/tcp https (Web server) 5025/tcp SCPI socket *****/tcp VXI-11 communication (dynamic port allocated)

Ethernet Parameters Range Setup

1. Touch any of the three horizontal Measure touch pads on the home screen to open the CONTROL SET UP screen

2. On the CONTROL SETUP screen, select GLOBAL SETUP.

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3. Select SUPERVISOR SET UP.

4. Enter the Supervisor PIN and press ENTER SUPERVISOR PIN. Use the back arrow in the top right corner of the screen to delete any incorrect data entries.

Note: The factory set Supervisor PIN is 0268. If the Supervisor PIN has been locally changed,

make sure that the new PIN is kept in a safe place. If the new PIN is lost, it can only reset at a GE Service Centre.

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5. Press COMMUNICATIONS STATUS to open the COMMUNICATIONS STATUS screen.

6. Select ETHERNET to open the ETHERNET PARAMETER screen.

7. To change the ADDRESS parameter, complete the following:

a. On the ETHERNET PARAMETER screen, use the UP and DOWN arrows to highlight

the ADDRESS field.

b. Press the top touch pad on the screen to enter the ADDRESS TYPE screen.

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c. Use the UP and Down arrows to highlight the desired address type (either AUTO IP

or STATIC).

d. Press the top touch pad on the screen to set the new address type. The screen

automatically returns to the ETHERNET PARAMETERS screen.

8. To change the host name, complete the following:

a. On the ETHERNET PARAMETER screen, use the UP and DOWN arrows on the right of

the screen to highlight the HOST NAME field.

b. Press the top touch pad on the screen to enter the HOST NAME screen. c. Use the keyboard to input the new host name and then press the top button on the

screen to set the host name. The screen automatically returns to the ETHERNET PARAMETERS screen.

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9. To change the web password, complete the following:

a. On the ETHERNET PARAMETER screen, use the UP and DOWN arrows on the right of

the screen to highlight the WEB PASWORD field.

b. Press the top touch pad on the screen to enter the WEB PASSWORD screen. The

keyboard screen opens.

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c. Use the keyboard to input the new web password and then press the top touch

area on the screen to set the new password. The screen automatically returns to the ETHERNET PARAMETERS screen.

10. To reset the LAN settings, complete the following:

a. On the ETHERNET PARAMETER screen, use the UP and DOWN arrows on the right of

the screen to highlight the RESET LAN SETTINGS field. b. Press the RESET THE LAN SETTINGS touch pad on the top touch pad of the screen. c. The RESET LAN SETTINGS sub-screen asking for confirmation of the reset. Press YES

to confirm reset of the LAN settings.

11. To turn the LAN status indicator on or off, complete the following:

a. On the ETHERNET PARAMETER screen, use the UP and DOWN arrows on the right of

the screen to highlight the SHOW LAN STATUS field.

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USB Located on the rear panel a USB connection requires the following:

Connector USB ‘B’ Protocol SCPI Terminator CR, LR or CR/LF

Communications mode is selected for serial communications using the SCPI protocol. Mass storage device is selected to mount an external USB ‘A’ connected mass storage

device or the internal memory SD card, from a PC connected to the USB ‘B’ port . External USB device has priority masking the internal memory SD card.

Note: When upgrading software make sure USB ‘B’ connection is disconnected.

Timeout

Presets the times for automatically changing from control to measure mode. Note: Controller timeouts can save supply gas, extending control valve life and minimising

acoustic noise.

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Reference

Level

Idle Timeout

Starts when the controller achieves the set-point after the set time, if new set-points are not entered the timer will time-out and return to measure mode.

Gas Head Correction

Corrects pressure output for the height difference between instrument and UUT:

• For UUT positioned higher than the reference level of the PACE instrument enter a positive height correction.

• For UUT positioned lower than the reference level of the PACE instrument enter a negative height correction.

• When calibrating the PACE instrument disable the gas head correction and correct the actual applied pressures for height.

Power Up

With Normal mode selected, the instrument powers up in Measure mode. With regulator mode selected, the instrument powers-up in Control mode at a pre-selected

set-point value.

Note: When using regulator mode, disable the Idle Timeout feature. Lock Tasks

Individual tasks Allows any combination of individual tasks to be disabled. Note: Restricts operation of the instrument to specific tasks or functions, use for production

procedures.

All

Disables all tasks.

Change PIN

Changes the Supervisor PIN: enter the existing PIN, then the new PIN and confirmation of the new PIN.

Note: Confirmation of the new PIN permanently replaces the old PIN. Record this new PIN

and keep in a safe place. If new PIN is lost it can only be reset by returning the instrument to a GE service centre.

User defined units

Permits the user to define a set of pressure conversion units. Following the on-screen prompts special units may be set by selecting a Pascal multiplier and assigning a five character name.

Instrument alias name

Permits the user to define a 20 character alias name for the instrument. The instrument returns this name through the communications interfaces.

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Language

Operation in any of the following languages can be selected:

•English (default)

•French

•German

•Italian

• Portuguese

• Spanish

• Russian

• Chinese

• Japanese More languages can be added.

Adding a Language

Languages can be added as follows (Ref: Figure 1, Language Setting)

1 Create a language file by translating from the English language file.

2 Check the pixel width of each translated word by using the PACE language check file,

(download from GE Support Central PACE).

3 Create an empty DPI folder on a USB stick.

4 Create an empty “LANGUAGES” sub-folder.

5 The language file naming conventions is “Language<<language name>>.lng”.

6 Save the language file into the languages sub-folder.

7 Use the PACE instrument software upgrade procedure to upload the language file

from the USB stick into the PACE instrument.

Note: An English and French language file name would be: LanguageEnglish.lng and

LanguageFrench.lng.

Language files named “Language.lng” or in any other format will be ignored by PACE.

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Figure 1 Language Setting

Restore as shipped settings

Restores instrument settings to factory default, but does not affect PIN settings.

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Serial number

6.8 Options Option enable process

To enable soft options on a PACE instrument, use the following:

1. Touch the top Measure area of the

screen.

2. Select Global Setup.

3. Select Calibration.

4. Enter a Calibration PIN 1234.

5. Enter new option key xxxxxxxxxx (10

digits).

6. After entry of this key PACE confirms

the options have been enabled.

Options in the Task Menu

The following software enabled options can be selected from the task menu:

Leak Test option

This task applies one or two test pressures to either an external system to find any leaks in a system connected to the instrument or an internal leak check. This task sets the test pressure, control dwell time at the test pressure and the leak test time (measure dwell time).

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Example set-up parameter

Example leak rate results

Start

Test pressure 1

Leak test

Set-up

Test pressure 2

Edit pressure

Control dwell time

Measure dwell time

Leak rate

/second

/minute

TP 1

TP 2

Control

Dwell

Measure

Dwell

Control

Dwell

Measure

Dwell

End

Pressure

Note: If only one test pressure is required set

TP1 = TP2. At the start of the test, the

instrument applies a test pressure to the user system. A control dwell time allows the user system to thermally stabilise. The instrument changes to measured mode and then records the pressure change during measure dwell time. On completion, the display shows the leak rate results with leak rates per second or per minute in the current pressure units selected in measure set-up.

lk = leak P = pressure T = Time (second) TP = test pressure

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Example of setting a parameter

Switch test

Stop

Release pressure

Switch Test Parameter

Selection

Start

SUPPLY

OUTLET VENT REF

Pressure Module

Pressure Switch

24V-0V

DC Output

Logic input

(24V max)

PACE

30Vmax

Switch Test option

This function automates the testing of pressure switch devices. Connect the pressure port of the switch to be tested to the output port. Connect the switch contacts in series with the 24V dc output and the Logic Input.

Note: The volt-free logic input connections require a switching potential (24V max) to be applied. If necessary, this can be an external d.c. source. Common mode must be kept within 30V maximum.

Start

Controls pressure at a fast slew rate to a set-point just below expected switch operating point. De-bounce time can be increased for slower test slew rates.

Test

Controls pressure between two set-points and can repeat (loop). Auto-reverse can be selected.

End

Controls pressure to a safe condition to disconnect switch under test.

Procedure

Select the switch test parameters in the switch test menu, including the start pressure, end pressure and test rate of change. Slower rates give more accurate results. The de-bounce time can be set between 0 and 200 ms. After the test, the display shows the pressures at which the contacts open and close and the switch hysteresis (the difference between the two switching pressures). Before disconnecting the switch under test,

press Release pressure to release any residual pressure. Note: This switch test procedure can be repeated to “exercise” the switch unit. Logic input is opto-isolated. An external supply (5V to 24V dc) can be used provided its’ common mode voltage remains with 30V max with respect to chassis.

Example Switch Test Connections

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Run

Test program

<...new...> File name

Stop

Start

single step

Copy

Delete

Edit

Select a test program from list

Test Program option

The test program task provides a facility for writing and executing test procedures. Selecting a test program from the Task menu displays all the task programs currently stored, together with the ability to write new ones.

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Program

To start a test program do the following:

1. Select the test programs listed on the screen.

2. The step function moves down the list of available test programs.

3. To start a test program, press run.

4. When the program starts, a stop legend replaces the run legend.

5. Press the stop key at any time to stop the test program. To write a test program do the following:

1. Press Set-up.

2. Select New. Note: A new test always contains a START and END command (first and last line instructions),

these lines cannot be deleted.

To edit an existing program do the following:

1. Press Edit. To enter a name for the program do the following:

1. Use g the text editor keys to select letter range to select the letter within the range.

2. Use the right arrow key to move to the next character position.

3. Press enter on completion. The display shows the line instruction with insert and delete selections. Pressing insert

changes the display to a list of the available programming commands. Test programs can be saved to or uploaded from a USB stick. Test programs can also be edited or written on a PC.

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Table 6-2 - Test Program Commands

Command Description

BEEP Beep on/off.

BREAK

CONTROL Selects Control mode. COUNT Used in a loop to count the number of loop cycles. DWELL Specifies dwell time (seconds). GOTO Used to set-up a loop. Enter program line number to go to. IN_LIMITS In_Limits band setting (% full-scale).

IN_LIMITS_TIME

IP_LOGIC Specifies change of state for external contacts as a halt condition. MEASURE Selects Measure mode. PAUSE Causes test program to pause for user input (Resume) RANGE Specifies instrument range RATE_MAX Sets controller rate to maximum. RATE_VALUE Specifies controller rate. RESOLUTION Sets display resolution. SETPOINT Allows set-point to be entered. SETTLING_FAST Used to specify overshoot requirements. SETTLING_N_O Used to specify no overshoot. STOP_COUNT Used to stop loop program after a number of loops. TEXT Sets screen message. UNITS Selects required display units. VENT Instructs instrument to vent. VFC OFF Sets VFC allocation test program off. VFC ON Sets VFC allocation test program on. WAIT_IN_ LIMITS Waits until pressure is within the limits. ZERO Output zeroed

Breaks to this point when stop count command or STOP icon is selected, then executing code to the end.

Waits, within In_Limits for this time period, before setting a valid In_Limits condition.

To select a command, use the command on the display and press insert key to write it into the program. Place the UNITS, RATE, SETTLING and RESOLUTION commands at the start of the program this protects pressure-sensitive UUT.

When selected, certain commands require a value or selection to be set (e.g.) RANGE, RATE, TEXT the display shows a screen prompt for the appropriate setting.

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Example Program

Note: Changes to instrument settings made in a test program remain valid only for the test

program.

The instrument reverts to the pre-test settings on completion.

Step Command Argument Action

START Program start

UNITS mbar Select units, mbar

RATE 100 Select rate, 100 mbar/min

IN LIMITS TIME 10 (00:00:10) secs

IN LIMITS Set In Limits Band

RESOLUTION 5 Display resolution, 5 digits

SETTLING No overshoot

TEXT Operator instruction, e.g.”Connect UUT”

ZERO

SET-POINT 400 Set-point, 400 mbar

CONTROL Controller ON

WAIT IN LIMITS Wait for In Limits Condition

BEEP Beep on, approx. 1 sec, Beep off

MEASURE Switch to Measure (controller off)

DWELL 30 Wait for 30 sec (00:00:30)

SET-POINT 800 Set-point, 800 mbar

CONTROL Controller on

WAIT IN LIMITS Wait for In Limits Condition

BEEP ON Beep on, approx. 1sec, Beep off

MEASURE Switch to Measure (controller off)

TEXT

DWELL 30 Wait for 30 sec

BEEP Beep on, approx. 1 sec, Beep off

TEXT Operator instruction, e.g. “Min pressure allowed 785 mbar”

PAUSE WAIT, (for operator input to touch single step)

VENT Vent END Program end

Operator instruction, e.g. (Wait for beep, record pressure)

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Programming Loops

To program a loop, use the GOTO command. Include the COUNT command in the loop for counting the number of loop cycles.

Note: The test program commands do not include tests for conditional jumps. To stop a test program from looping, STOP must be selected by the operator.

Example of programming a loop

Step Command Argument Action

START Program start

UNITS mbar Select units, mbar RATE_VALUE 100 Select rate 100mbar/min RESOLUTION 5 Display resolution 5 digits IN LIMITS Sets the In-limits band IN LIMITS TIME 10 (00:00:10) secs SETTLING_N_O zero No overshoot TEXT Operator instruction, e.g.“Connect UUT” ZERO Performs a sensor zero SET-POINT 400 Set-point, 400 mbar CONTROL Controller ON WAIT IN LIMITS Wait for In-limits condition BEEP ON Beep on, approx. 1sec, Beep off MEASURE Switch to measure (controller off) DWELL 30 Wait, 30 sec SET-POINT 800 Set-point, 800 mbar CONTROL Controller on WAIT IN LIMITS Wait for In-limits condition BEEP ON Beep on, approx. 1sec, Beep off MEASURE Switch to measure, controller off COUNT Increment loop counter VENT Vent GOTO 9 Loop back to program line 9 END Program end

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Barometric Pressure

2bar abs +1bar g

-1bar g

11bar abs

+10bar g

1350mbar abs

650mbar abs

0bar abs (Absolute Zero Pressure)

+350mbar g

-350mbar g

1070mbar abs

930mbar abs

+70mbar g

-70mbar g

Gauge reference pressure

70mbar Control Module with Barometric Option

Gauge Range = ±70mbar g

Pseudo Absolute Range = 930mbar abs to 1070mbar abs

350mbar Control Module with Barometric Option

Gauge Range = ±350mbar g

Pseudo Absolute Range = 650mbar abs to 1350mbar abs

10bar Control Module with Barometric Option

Gauge Range = -1bar g to +10bar g

Pseudo Absolute Range = 0bar abs to 11bar abs

1bar Control Module with Barometric Option

Gauge Range = ±1bar g

Pseudo Absolute Range = 0bar abs to 2bar abs

Barometric Reference Option

The barometric reference option measures the barometric pressure at the reference port. When installed, this option allows absolute or gauge pressure range selection. To obtain

absolute pressure the instrument uses a summation of gauge pressure and barometric pressure (measured by the barometric sensor).

Ref: Data sheet 920-561 for the barometric reference and precision of absolute ranges.

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Aeronautical option

The aeronautical option is a specialised application of the PACE instrument. Special application note: The PACE instrument must be set-up very carefully so that the

aeronautical pressures applied do not exceed maximum pressure values and rates of change.

Leak testing

Cautions Do not exceed the maximum pressures stated in the appropriate Component

Maintenance Manual for the unit under test. Carefully de-pressurize all pipes to atmospheric pressure before disconnecting and

connecting to the unit under test.

Before testing an aeronautical component do a leak test. This task sets the test pressure, dwell time at the test pressure and the leak test time. At the start of the test, the instrument applies a test pressure to the user system. A dwell time allows the user system to stabilise.

Aeronautical testing

The aeronautical task enables control and measurement of the following:

• Altitude (feet/metres)

• Airspeed (knots, mph, km/h) This task utilises dual pressure displays to show the parameter and the rate of change of the

following:

•Altitude

•Airspeed

• Mach and Airspeed with Mach number The aeronautical task enables the testing and calibration checking of aeronautical

indicators and system components by controlling and displaying values and rates in aeronautical units.

When using a single instrument, the pressure supply must be changed when changing from

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6 Reference and Specification

SUPPLY

OUTLET VENT REF

Module 2

SUPPLY

OUTLET VENT REF

Module 1

Rear view of instrument

SUPPLY

OUTLET VENT REF

Module 2

SUPPLY

OUTLET VENT REF

Module 1

Altimeter ASI/Mach

Pt Ps

Rear view of instrument

Pitot Static

Open to Atmosphere

Altitude to Airspeed.

Example of Altitude and Airspeed Testing

This example shows how two-channel PACE instruments can be used to generate altitude and airspeed.

Cautions Before testing, set the rates of change for both Pitot and Static to a safe value. A high

rate of change can damage sensitive aeronautical components. Refer to the appropriate Component Maintenance Manual for the unit under test.

In this example configuration, negative airspeed can be generated this can damage an airspeed indicator. To prevent negative airspeed, apply the Static pressure before the Pitot pressure for increasing and decreasing airspeed values.

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PACE Pressure Controller User Manual

SUPPLY

OUTLET VENT REF

Module 2

SUPPLY

OUTLET VENT REF

Module 1

Pressure

source

Pressure regulator

Rear view of PACE instrument

Vacuum

source

Altimeter

ASI/Mach

Static Static

Pitot

Pitot Static (Altitude)

Units

The units can be either the aeronautical or pressure units. The units can be changed any time between pressure and pressure converted to aeronautical units. The display shows the output pressure converted to Altitude, CAS or Mach using BS 2G 199:1984* conversions and assuming standard atmospheric conditions.

*Based on tables from ICAO Standard Atmosphere 1964. Reference Pressure

Select the required reference pressure, this can be either the barometric pressure (from the instrument’s internal barometric sensor), or any numeric value (e.g.) 1013.25 mbar.

Go to ground

Returns the instrument and any UUT, connected to it, safely to ground pressure at a controlled rate.

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Control of Aeronautical parameters

The aeronautical control is an intergrated controller. The two modules work together as a dual channel pressure controller (Ref: Figure 1, Screen Layout).

In aeronautical mode, the display goes to the last selected parameter:

•Altitude

•Airspeed

•Mach

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PACE Pressure Controller User Manual

Figure 1 Screen Layout

In dual screen mode both altitude and airspeed controllers are set to control mode, by selecting the Enter Control key (Ref: Figure 1, Screen Layout).

The Enter Measure key sets both controllers to measure mode. (Ref: Figure 1, Screen Layout).

(Ref: Figure 1, Item 1,Screen Layout) if this is selected both controllers will go to ground.

Figure 2 Measurement mode

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6 Reference and Specification

(Ref: Figure 2, measurement mode) both controllers in measurement mode.

Figure 3 Control mode

(Ref: Figure 3, Control mode) both controllers in control mode.

In control mode each control can have an individual set-point. If Hold is selected (Ref: Figure 3, Item 1, Control mode) a set altitude or speed will be held. Note: The altitude and airspeed controllers are still actively ON, but held at the selected

range.

Figure 4 Set-points

If Resume is selected (Ref: Figure 4, Item 1, Set-points) the altitude and speed will continue to the set-points.

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PACE Pressure Controller User Manual

Selects Analogue Output Range

On/Off

Update rate of Analogue Output option from the control module.

Analogue Output Bandwidth = 0.5 x Update Rate (Hz)

analogue connections

30V maximum with respect to chassis. Rated output = 24V

30Vmax

To maintain PACE product safety, external circuits connected to the instrument must meet Safety Extra-Low Voltage (SELV) requirements.

15-way female D connector

Front view of Analogue Option PCB connector

123

15 14 13 12 11 10 9

30Vmax

Analogue Output Option

The analogue output option provides a selectable output of voltage or current.

Pin number Function Pin number Function

1 not used 9 not used

2 not used 10 0V return

3 not used 11 +24V DC OUT @ 100mA

4 not used 12 SW IN 1

5 not used 13 SW IN 2

6 not used 14 analogue +

7 not used 15 analogue -

8not used

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Each selection has three Volts-free Contacts.

Selection of trigger conditions.

volts-free connections

30V maximum with respect to chassis. Rated output = 24V

30Vmax

To maintain PACE product safety, external circuits connected to the instrument must meet Safety Extra-Low Voltage (SELV) requirements.

event

trigger

24 Vdc maximum 30 Vdc wrt chassis 1 A resistive maximum

Typical Volts-free schematic

Relay contacts rated at 30 Vdc, 1 A resistive, 200 mA inductive.

Volts-free Contact Option

The Volts-free Contact option provides a selectable output of voltage or current.

Pin number Function Pin number Function

1 Relay 1 normally CLOSED 9 Relay 3 common

2 Relay 1 normally OPEN 10 0V return

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3 Relay 1 common 11 +24V DC OUT @ 100mA

4 Relay 2 normally CLOSED 12 SW IN 1

5 Relay 2 normally OPEN 13 SW IN 2

6 Relay 2 common 14 not used

7 Relay 3 normally CLOSED 15 not used

8 Relay 3 normally OPEN

PACE Pressure Controller User Manual

6.9 Calibration

The calibration menu provides facilities for programming settings for maintenance as follows:

Note: A PIN protects the Calibration menu against unauthorised use. Each instrument, on

delivery, contains the factory set PIN (4321). To continue protecting the supervisor setup menu, the PIN should be changed as soon as possible.

+ve source zero

-ve source zero sensor correction Selects the range for a three-point calibration routine. valve correction source PDCR correction three-point calibration of both source pressure sensors screen calibration Time & Date Sets instrument clock and calendar. Change PIN Changes the Calibration PIN. Enter the existing PIN, the new PIN and

confirmation of the new PIN. Should this new PIN become lost it can only be reset by returning the instrument to a GE service centre.

6.10 Communications - Instrument Emulation

(Ref: K0469 - PACE Communications Manual - Instrument Emulation).

6.11 Specification

(Ref: PACE Module Pressure Controller data sheet).

Note: Data sheet 920-561 is contained in the CD shipped with the product.

6.12 Return Goods/Material Procedure

If the unit requires calibration or is unserviceable return it to the nearest GE Service Centre listed at www.gemeasurement.com.

Contact the Service Department, by 'phone, fax or E-mail to obtain a Return Goods Authorisation (RGA) (Worldwide excluding USA).

In the USA obtain a Return Material Authorization [RMA].

• Product (i.e. PACE5000)

• Serial number

• Details of defect/work to be undertaken

• Calibration traceability requirements

• Operating conditions

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Safety Precautions

You must inform GE if the product has been in contact with any hazardous or toxic substance.

The relevant COSHH or in the USA, MSDS, references and precautions to be taken when handling.

Important notice

Service or calibration by unauthorized sources will affect the warranty and may not guarantee further performance.

6.13 Packaging Procedure

1 The instrument should be at zero/ambient pressure.

2. Switch off and isolate the electrical power supply to the instrument.

3. Shut off the pneumatic pressure and vacuum supplies to the instrument.

4. Remove the instrument from the equipment rack to access the rear panel.

5. Disconnect the power supply cable and the pneumatic supply hose assemblies.

6. Stow the power supply cable in the packaging below.

7. Remove any pressure adaptors, diffusers and restrictors.

If available, use the original packing material. When using packing materials other than the original, do the following:

8. Fit protection to all the ports to prevent ingress of moisture and dirt. Note: Use the original red plastic plugs or low tack masking tape.

9. Wrap unit in polyethylene sheeting.

10. Select a double-wall cardboard container.

• Inside dimensions must be at least 15 cm (6”) greater than the equipment

• The carton must meet test strength requirements of >

11. Protect all sides with shock-absorbing material to prevent equipment movement

within the container.

12. Seal carton with approved sealing tape.

13. Mark carton “FRAGILE” on all sides, top, and bottom of shipping container.

Environment

The following conditions apply for both shipping and storage:

• Temperature range: -20° to +70°C (-4° to +158°F)

125 kg (275 lbs).

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6.14 Vacuum System Parts

The parts list below lists a typical system to supply vacuum, enabling the control of subatmospheric pressures by the PACE instrument. Part numbers quoted in the table are taken from the BOC Edwards Vacuum Products Catalogue. For more information, go to: www.bocedwards.com.

Description Part Number Quantity

RV5 115/230Vac Vacuum Pump, 91 litre/min

EMF10 Mist Filter

NW25/NW10 Reducer fitting

NW10 T-Piece Fitting

IPVA10EK Air Admittance Valve, Normally Open

NW10 Flexible Pipeline 1m, S/S

NW10 Clamping Ring

NW10 Centering Ring

NW25 Clamping Ring

NW25 Centering Ring

NW16/10 Centering Ring

NW16 to ¼NPT Male Adapter, S/S

FL20K Foreline Trap

A653-01-903 1

A462-26-000 1

C105-14-436 2

C105-11-411 1

C417-21-000 1

C105-11-287 4

C105-12-401 5

C105-11-398 5

C105-14-401 3

C105-14-398 3

C105-12-349 1

C105-01-103 1

FL-20-K 1

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Intentionally Blank

K0443 Revision A 6 - 44 [EN] English

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Specifications and Main Features

Frequently Asked Questions

User Manual

Pressure Automated Calibration Equipment

User manual - K0443 Revision A

Introduction

Safety

Pressure

Toxic Materials

Maintenance

Technical Advice

General Specification

Environmental Conditions

Abbreviations

Related publications

Symbols

Unit Conversion

CONTENTS

1Description

1.1 Introduction

2 Installation

2.1 Packaging

Packaging List

2.2 Packaging for Storage or Transportation

2.3 Preparation for Use

2.4 Pneumatic connections

Pressure supply (Ref: Figure 2-1, Pneumatic connections)

Installation

Supply equipment

Pneumatic Connection Examples (Ref: Figures 2-3, 2-4 and 2-5)

2.5 Rack-mount option (Ref: Figure 2-6)

General

Procedure

2.6 Electrical connections

Connecting (Ref: Figure 2.7 Electrical connections)

24V DC Output @ 100mA maximum

Logic (switch) Input

Handshaking connections

IEEE 488 Interface

Single Unit Installation (Ref: Figure 2-9)

Multiple Unit Installation (Ref: Figure 2-9)

3Operation

3.1 Preparation

3.2 Power-up sequence

3.3 Measure mode

Controller Off – Increasing Set-point

Controller Off – Decreasing Set-point

Controller On – Increasing Set-point

Controller On – Decreasing Set-point

3.4 Control Mode

Controlling to a new set-point

Controlling to ambient/zero pressure

1. Use the numeric key display and set the new set-point value to ambient or zero gauge pressure.

2. When the display shows the new set-point value, press the key.

3. The display shows the pressure value changing as the instrument controls to the new set-point, at the set rate of change.

4. When the display shows ambient or zero pressure, press the key to switch off the controller and return to measure mode.

Task

3.5 Operation and Example Procedures Introduction

Before operation, the instrument must be connected to the correct electrical and pneumatic supplies (Ref: Section 2, Installation).

Switch the instrument ON, the display shows measured pressure mode (except when regulator mode is selected) and the task set before the power-off.

Measure and Control Modes

Divider menu structure

3.6 Global Set-up Selections

Status area settings

3.7 Barometric Reference Option

3.8 Supervisor set-up

3.9 Instrument Status

4 Maintenance

4.1 Introduction

4.2 Visual Inspection

4.3 Cleaning

4.4 Test

4.5 Calibration

4.6 Replacement Parts

Remove

Replace

4.8 Filter replacement (Ref: Figure 4-2, Pressure module filters)

Remove

Replace