Fluke 9011 User Manual

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Page 1

Hart Scientific

9011

High-Accuracy Dual-Well Calibrator

User’s Guide

Rev. 612501

Page 2

Fluke Corporation, Hart Scientific Division

799 E. Utah Valley Drive • American Fork, UT 84003-9775 • USA Phone: +1.801.763.1600 • Telefax: +1.801.763.1010 E-mail: support@hartscientific.com

www.hartscientific.com

Rev. 612501

Page 3

1 Before You Start . . . . . . . . . . . . . . . . . . . . . . . . . . 1

1.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

1.2 Symbols Used . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

1.3 Safety Information . . . . . . . . . . . . . . . . . . . . . . . . . . 3

1.3.1 WARNINGS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

1.3.2 CAUTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

1.4 Authorized Service Centers. . . . . . . . . . . . . . . . . . . . . . 6

2 Specifications and Environmental Conditions . . . . . . . . . . 9

2.1 Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

2.2 Environmental Conditions . . . . . . . . . . . . . . . . . . . . . . 9

2.3 Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

3 Quick Start . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

3.1 Unpacking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

3.2 Set-up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

3.3 Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

3.4 Setting the Temperature . . . . . . . . . . . . . . . . . . . . . . . 12

4 Parts and Controls . . . . . . . . . . . . . . . . . . . . . . . . 13

4.1 Rear Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

4.2 Front Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

4.3 Top Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

4.4 Constant Temperature Block Assembly . . . . . . . . . . . . . . . 15

5 General Operation . . . . . . . . . . . . . . . . . . . . . . . . 17

5.1 Setting the Temperature . . . . . . . . . . . . . . . . . . . . . . . 17

5.2 Changing Display Units . . . . . . . . . . . . . . . . . . . . . . . 17

6 Controller Operation . . . . . . . . . . . . . . . . . . . . . . . 19

6.1 Well Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . 19

6.2 Temperature Set-point . . . . . . . . . . . . . . . . . . . . . . . . 19

6.2.1 Programmable Set-points . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

6.2.2 Set-point Value . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

6.2.3 Temperature Scale Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

6.3 Scan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Page 4

6.3.1 Scan Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

6.3.2 Scan Rate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

6.4 Temperature Display Hold . . . . . . . . . . . . . . . . . . . . . 22

6.4.1 Switch Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

6.4.2 Scan Hold . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

6.5 Ramp and Soak Program Menu . . . . . . . . . . . . . . . . . . . 24

6.5.1 Number of Program Set-points . . . . . . . . . . . . . . . . . . . . . . . . . 24

6.5.2 Set-points . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

6.5.3 Program Soak Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

6.5.4 Program Function Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

6.5.5 Program Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

6.6 Set-point Resistance . . . . . . . . . . . . . . . . . . . . . . . . . 26

6.7 Secondary Menu. . . . . . . . . . . . . . . . . . . . . . . . . . . 27

6.8 Heater Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

6.9 Proportional Band . . . . . . . . . . . . . . . . . . . . . . . . . . 28

6.10 Controller Configuration . . . . . . . . . . . . . . . . . . . . . . 29

6.11 Operating Parameters . . . . . . . . . . . . . . . . . . . . . . . . 29

6.12 High Limit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

6.13 Serial Interface Parameters . . . . . . . . . . . . . . . . . . . . . 30

6.13.1 Baud Rate (cold side only) . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

6.13.2 Sample Period (hot and cold sides) . . . . . . . . . . . . . . . . . . . . . . . 31

6.13.3 Duplex Mode (cold side only) . . . . . . . . . . . . . . . . . . . . . . . . . 31

6.13.4 Linefeed (cold side only) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

6.14 Calibration Parameters . . . . . . . . . . . . . . . . . . . . . . . 32

6.14.1 Hard Cutout (hot side only). . . . . . . . . . . . . . . . . . . . . . . . . . . 33

6.14.2 R0 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

6.14.3 ALPHA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

6.14.4 DELTA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

6.14.5 BETA (cold side only) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

7 Digital Communication Interface . . . . . . . . . . . . . . . . 37

7.1 Serial Communications . . . . . . . . . . . . . . . . . . . . . . . 37

7.1.1 Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

7.1.2 Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

7.1.2.1 Baud Rate (Cold Side Only) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

7.1.2.2 Sample Period. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

7.1.2.3 Duplex Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

7.1.2.4 Linefeed. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

7.1.3 Serial Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

7.2 Interface Commands . . . . . . . . . . . . . . . . . . . . . . . . 39

8 Test Probe Calibration . . . . . . . . . . . . . . . . . . . . . . 43

8.1 Calibrating a Single Probe. . . . . . . . . . . . . . . . . . . . . . 43

8.2 Dry-well Characteristics. . . . . . . . . . . . . . . . . . . . . . . 43

8.2.1 Stabilization and Accuracy . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

Page 5

9 Calibration Procedure . . . . . . . . . . . . . . . . . . . . . . 45

9.1 Calibration Procedure . . . . . . . . . . . . . . . . . . . . . . . . 45

9.1.1 Calibration Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

9.1.2 Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

10 Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

11 Troubleshooting. . . . . . . . . . . . . . . . . . . . . . . . . . 49

11.1 Troubleshooting Problems, Possible Causes, and Solutions . . . . 49

11.2 CE Comments . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

11.2.1 EMC Directive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

11.2.2 Low Voltage Directive (Safety). . . . . . . . . . . . . . . . . . . . . . . . . 50

iii

Page 6

Figures and Tables

Table1 International Electrical Symbols . . . . . . . . . . . . . . . . . . . . . 2

Figure 1 Back Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Figure 2 Front Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Figure 3 Interchangeable Insert Options . . . . . . . . . . . . . . . . . . . . . 16

Figure 4 Controller Operation Flow Chart. . . . . . . . . . . . . . . . . . . . . 20

Figure 5 Temperature fluctuations at various proportional band settings. . . . . 28

Figure 6 Serial Cable Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

Table 2 Controller Communications Commands . . . . . . . . . . . . . . . . . 40

Table 2 Controller Communications Commands continued . . . . . . . . . . . 41

Table 2 Controller Communications Commands continued . . . . . . . . . . . 42

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1 Before You Start

1.1 Introduction

The Hart Scientific 9011 High-Accuracy Dual-Well Calibrator may be used as a portable instrument or bench top temperature calibrator for calibrating ther mocouple and RTD temperature probes. Calibrations may be done over a range of –30°C to 670°C (–22°F to 1238°F). Temperature display and setability reso lution is 0.1 degrees.

The instrument features:

Rapid heating and cooling

•

Hot and cold blocks in a single unit

•

RS-232 interface capability

•

Switch hold test

•

Built in programmable features include:

• Temperature scan rate control

• Eight set-point memory

• Adjustable readout in °C or °F

The temperature is accurately controlled by Hart’s digital controller. The controller uses a precision platinum RTD as a sensor that controls the well temperature with a triac driven heater or thermoelectric devices (TED).

The LED front panel continuously shows the current well temperature of both hot and cold blocks. The temperature may be set, using the control buttons, to any desired temperature within the instrument's range. Multiple fault protection devices insure user and instrument safety and protection.

This dry-well calibrator was designed for portability, low cost, and ease of op eration. Through proper use, the instrument will provide continued accurate calibration of temperature sensors and devices. The user should be familiar with the safety guidelines and operating procedures of the calibrator as de scribed in the instruction manual.

1 Before You Start

Introduction

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9011 Dual-Well Calibrator

User’s Guide

1.2 Symbols Used

Table 1 lists the International Electrical Symbols. Some or all of these symbols may be used on the instrument or in this manual.

Table1 International Electrical Symbols

Symbol Description

AC (Alternating Current)

AC-DC

Battery

Complies with European Union directives

Double Insulated

Electric Shock

Fuse

PE Ground

Hot Surface (Burn Hazard)

Read the User’s Manual (Important Information)

Off

Canadian Standards Association

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Symbol Description

OVERVOLTAGE (Installation) CATEGORY II, Pollution Degree 2 per IEC1010-1 re fers to the level of Impulse Withstand Voltage protection provided. Equipment of OVERVOLTAGE CATEGORY II is energy-consuming equipment to be supplied from the fixed installation. Examples include household, office, and laboratory appliances.

C-TIC Australian EMC Mark

The European Waste Electrical and Electronic Equipment (WEEE) Directive (2002/96/EC) mark.

1.3 Safety Information

Use this instrument only as specified in this manual. Otherwise, the protection provided by the instrument may be impaired. Refer to the safety information in the Warnings and Cautions sections below.

The following definitions apply to the terms “WARNING” and “CAUTION”.

• “Warning” identifies conditions and actions that may pose hazards to the user.

• “Caution” identifies conditions and actions that may damage the instrument being used.

1 Before You Start

Safety Information

1.3.1

WARNINGS

To avoid personal injury, follow these guidelines.

GENERAL

•

DO NOT use this instrument in environments other than those listed in the User’s Guide.

•

Inspect the instrument for damage before each use. DO NOT use the in strument if it appears damaged or operates abnormally.

•

Follow all safety guidelines listed in the user’s manual.

•

Calibration Equipment should only be used by Trained Personnel.

•

If this equipment is used in a manner not specified by the manufacturer, the protection provided by the equipment may be impaired.

•

Before initial use, or after transport, or after storage in humid or semi-hu mid environments, or anytime the dry-well has not been energized for more than 10 days, the instrument needs to be energized for a "dry-out" period of 2 hours before it can be assumed to meet all of the safety re quirements of the IEC 1010-1. If the product is wet or has been in a wet environment, take necessary measures to remove moisture prior to apply ing power such as storage in a low humidity temperature chamber operat ing at 50°C for 4 hours or more.

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9011 Dual-Well Calibrator

User’s Guide

•

BURN HAZARDS

•

• Use of this instrument at HIGH TEMPERATURES for extended periods

• DO NOT touch the well access surface of the instrument.

• The block vent may be very hot due to the fan blowing across the heater

• The temperature of the well access is the same as the actual display tem-

• For top loading dry-wells, the top sheet metal of the dry-well may exhibit

•

DO NOT use this instrument for any application other than calibration work. The instrument was designed for temperature calibration. Any other use of the instrument may cause unknown hazards to the user.

Completely unattended operation is not recommended.

Overhead clearance is required. DO NOT place the instrument under a cabinet or other structure. Always leave enough clearance to allow for safe and easy insertion and removal of probes.

If the instrument is used in a manner not in accordance with the equip

ment design, the operation of the dry-well may be impaired or safety haz ards may arise.

This instrument is intended for indoor use only.

DO NOT turn the instrument upside down with the inserts in place; the inserts will fall out.

DO NOT operate near flammable materials.

of time requires caution.

block of the dry-well.

perature, e.g. if the instrument is set to 375°C and the display reads 375°C, the well is at 375°C.

extreme temperatures for areas close to the well access.

The air over the well can reach temperatures greater that 200°C for high temperature (400°C and higher) dry-wells. Note: Probes and inserts may be hot and should only be inserted and removed from the instrument when the instrument is set at temperatures less than 50°C. Use extreme care when removing hot inserts.

DO NOT turn off the instrument at temperatures higher than 100°C. This could create a hazardous situation. Select a set-point less than 100°C and allow the instrument to cool before turning it off.

The high temperatures present in dry-wells designed for operation at 300°C and higher may result in fires and severe burns if safety precau

tions are not observed.

ELECTRICAL SHOCK

•

These guidelines must be followed to ensure that the safety mechanisms in this instrument will operate properly. This instrument must be plugged into a 115 VAC, 60Hz (230 VAC, 50Hz optional), AC only electric outlet. The power cord of the instrument is equipped with a three-pronged

Page 11

1 Before You Start

Safety Information

grounding plug for your protection against electrical shock hazards. It must be plugged directly into a properly grounded three-prong receptacle. The receptacle must be installed in accordance with local codes and ordi nances. Consult a qualified electrician. DO NOT use an extension cord or adapter plug.

If supplied with user accessible fuses, always replace the fuse with one of

•

the same rating, voltage, and type.

Always replace the power cord with an approved cord of the correct rat

•

ing and type.

HIGH VOLTAGE is used in the operation of this equipment. SEVERE

•

INJURY or DEATH may result if personnel fail to observe safety precau tions. Before working inside the equipment, turn power off and discon nect power cord.

1.3.2

CAUTIONS

Always operate this instrument at room temperature between 41°F and

•

122°F (5°C to 50°C). Allow sufficient air circulation by leaving at least 6 inches (15 cm) of clearance around the instrument.

• Component lifetime can be shortened by continuous high temperature op -

eration.

• DO NOT apply any type of voltage to the display hold terminals. Apply-

ing a voltage to the terminals may cause damage to the controller.

• DO NOT use fluids to clean out the well. Fluids could leak into electron-

ics and damage the instrument.

• Never introduce any foreign material into the probe hole of the insert.

Fluids, etc. can leak into the instrument causing damage.

•

DO NOT change the values of the calibration constants from the factory set values. The correct setting of these parameters is important to the safety and proper operation of the calibrator.

•

DO NOT slam the probe sheath in to the well. This type of action can cause a shock to the sensor and affect the calibration.

•

The instrument and any thermometer probes used with it are sensitive in struments that can be easily damaged. Always handle these devices with care. DO NOT allow them to be dropped, struck, stressed, or overheated.

•

The Factory Reset Sequence (see Section , Troubleshooting) should be performed only by authorized personnel if no other action is successful in correcting a malfunction. You must have a copy of the most recent Report of Calibration to restore the calibration parameters.

•

DO NOT operate this instrument in an excessively wet, oily, dusty, or dirty environment. Always keep the well and inserts clean and clear of foreign material.

•

The dry-well is a precision instrument. Although it has been designed for optimum durability and trouble free operation, it must be handled with

Page 12

9011 Dual-Well Calibrator

User’s Guide

•

1.4 Authorized Service Centers

Please contact one of the following authorized Service Centers to coordinate service on your Hart product:

Fluke Corporation, Hart Scientific Division

care. Always carry the instrument in an upright position to prevent the probe sleeves from dropping out. The convenient handle allows for hand carrying the instrument.

If a mains supply power fluctuation occurs, immediately turn off the in

strument. Power bumps from brown-outs could damage the instrument. Wait until the power has stabilized before re-energizing the instrument.

Allow for probe expansion inside the well as the block heats.

Most probes have handle temperature limits. Be sure that the probe handle temperature limit is not exceeded in the air above the instrument.

799 E. Utah Valley Drive

American Fork, UT 84003-9775

USA

Phone: +1.801.763.1600

Telefax: +1.801.763.1010

E-mail: support@hartscientific.com

Fluke Nederland B.V.

Customer Support Services

Science Park Eindhoven 5108

5692 EC Son

NETHERLANDS

Phone: +31-402-675300

Telefax: +31-402-675321

E-mail: ServiceDesk@fluke.nl

Fluke Int'l Corporation

Service Center - Instrimpex

Room 2301 Sciteck Tower

22 Jianguomenwai Dajie

Chao Yang District

Beijing 100004, PRC

Page 13

1 Before You Start

Authorized Service Centers

CHINA

Phone: +86-10-6-512-3436

Telefax: +86-10-6-512-3437

E-mail: xingye.han@fluke.com.cn

Fluke South East Asia Pte Ltd.

Fluke ASEAN Regional Office

Service Center

60 Alexandra Terrace #03-16

The Comtech (Lobby D)

118502

SINGAPORE

Phone: +65 6799-5588

Telefax: +65 6799-5588

E-mail: antng@singa.fluke.com

When contacting these Service Centers for support, please have the following information available:

• Model Number

• Serial Number

• Voltage

•

Complete description of the problem

Page 14

2 Specifications and Environmental Conditions

2 Specifications and Environmental

Conditions

2.1 Specifications

Hot Block Cold Block

Range 50°C to 670°C (122°F to 1238°F) –30°C to 140°C (–22°F to 284°F)

Accuracy ±0.2°C at 50°C

Stability ±0.02°C at 100°C

Uniformity ±0.2°C (±0.05°C typical) ±0.05°C (insert wells)

Well Depth 6" (152 mm) 4.875" (124 mm)

HeatingTimetoMax. 30 minutes 15 minutes

Cooling Times 120 minutes from 660°C to 100°C 30 minutes from 140°C to –30°C

Well Inserts 1 interchangeable well accommodates

Computer Interface RS-232 interface included with Model 9930 Interface

Power 115 VAC (±10%), 8.8 A or 230 VAC (±10%), 4.4 A, switchable, 50/60 Hz, 1150

Size 11.5" H x 15.5" W x 10.5" D (292 x 394 x 267 mm)

Weight 36 lb. (16.4 kg)

NIST-Traceable Certificate (8 points)

Safety OVERVOLTAGE (Installation) CATEGORY II, Pollution Degree 2 per

Fault Protection Sensor burnout protection, over-temperature cutout, and electrical fuses

Fuses 115 V: 10 A F (Hot), 4 A T (Cold), 250 VAC

†

Using same type of probes

±0.4°C at 400°C

±0.65°C at 600°C

±0.06°C at 600°C

multi-hole insert

Data at 50°C, 100°C, 200°C, 300°C,

400°C, 500°C, 600°C, and 660°C

IEC1010-1

230 V: 5 A F (Hot), 3.15 A T (Cold), 250 VAC

±0.25°C (insert wells)

±0.65°C (fixed wells)

±0.25°C (fixed wells)

1 interchangeable well accommodates

multi-hole insert, plus four outer wells,

1/4", 1/4", 3/16", and 1/8"

Data at –30°C, 0°C, 25°C, 50°C, 75°C, 100°C, 125°C, and 140°C

Specifications

±0.02°C at –30°C ±0.04°C at 140°C

-it

control software

2.2 Environmental Conditions

Although the instrument has been designed for optimum durability and trou ble-free operation, it must be handled with care. The instrument should not be operated in an excessively dusty or dirty environment. Maintenance and clean ing recommendations can be found in the Maintenance Section of this manual.

The instrument operates safely under the following conditions:

•

temperature range: 5–50°C (41–122°F)

Page 15

9011 Dual-Well Calibrator

User’s Guide

•

2.3 Warranty

Fluke Corporation, Hart Scientific Division (Hart) warrants this product to be free from defects in material and workmanship under normal use and service for a period as stated in our current product catalog from the date of shipment. This warranty extends only to the original purchaser and shall not apply to any product which, in Hart’s sole opinion, has been subject to misuse, alteration, abuse or abnormal conditions of operation or handling.

Software is warranted to operate in accordance with its programmed instructions on appropriate Hart products. It is not warranted to be error free.

Hart’s obligation under this warranty is limited to repair or replacement of a product which is returned to Hart within the warranty period and is determined, upon examination by Hart, to be defective. If Hart determines that the defect or malfunction has been caused by misuse, alteration, abuse or abnormal conditions or operation or handling, Hart will repair the product and bill the purchaser for the reasonable cost of repair.

To exercise this warranty, the purchaser must forward the product after calling or writing an Authorized Service Center (see Section 1.4). The Service Centers assume NO risk for in-transit damage.

THE FOREGOING WARRANTY IS PURCHASER’S SOLE AND EXCLU SIVE REMEDY AND IS IN LIEU OF ALL OTHER WARRANTIES, EX PRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO ANY IMPLIED WARRANTY OR MERCHANTABILITY, OR FITNESS FOR ANY PARTICULAR PURPOSE OR USE. HART SHALL NOT BE LIABLE FOR ANY SPECIAL, INDIRECT, INCIDENTAL, OR CONSEQUENTIAL DAM AGES OR LOSS WHETHER IN CONTRACT, TORT, OR OTHERWISE.

ambient relative humidity: 15–50%

pressure: 75kPa–106kPa

mains voltage within ±10% of nominal

vibrations in the calibration environment should be minimized

altitudes less than 2000 meters

indoor use only

Page 16

3 Quick Start

3.1 Unpacking

3 Quick Start

Unpacking

Unpack the dry-well carefully and inspect it for any damage that may have oc curred during shipment. If there is shipping damage, notify the carrier immediately.

Verify that the following components are present:

9011 Dry-well

•

Power Cord

•

User's Guide with Report of Calibration

•

2 inserts

•

Insert removal tool

•

RS-232 Cable

•

• 9930 Interface-it Software

3.2 Set-up

Place the calibrator on a flat surface with at least 6 inches of free space around the instrument. Always leave enough clearance in front of the instrument to allow for safe and easy insertion and removal of probes. Plug the power cord into a grounded mains outlet. Observe that the nominal voltage corresponds to that indicated on the calibrator.

3.3 Power

Plug the instrument power cord into a mains outlet of the proper voltage, fre quency, and current capability. Refer to Section 2.1, Specifications, for the power details.

Turn on the power to the calibrator by toggling both power switches on within three seconds of each other. The fans should begin blowing air through the in strument and both controller displays should illuminate after 3 seconds. After a brief self-test the controller should begin normal operation. If the unit fails to operate please check the power connection.

NOTE: If more than three seconds elapse,

pears on the display. Press any front control panel button to eliminate the

message. The hot block serial commands are not available unless

both power switches were turned on within three seconds of each other.

The display shows the well temperature and the well heater brings the tempera ture of the well to the set-point temperature.

(Interconnect Link) ap

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9011 Dual-Well Calibrator

User’s Guide

After using the calibrator, allow the well to cool by setting the temperature to 25°C and waiting 1/2 hour before turning the instrument off.

3.4 Setting the Temperature

Section 6.2 explains in detail how to set the temperature set-point on the cali

brator using the front panel keys. The procedure is summarized here.

(1) Press “SET” twice to access the set-point value.

(2) Press “UP” or “DOWN” to change the set-point value.

(3) Press “SET” to program in the new set-point.

(4) Press and hold “EXIT” to return to the temperature display.

When the set-point temperature is changed the controller switches the well heater on or off to raise or lower the temperature. The displayed well tempera ture gradually changes until it reaches the set-point temperature. The well may require considerable time to reach the set-point depending on the span. Addi

tional time is required to stabilize within ±0.1°C of the set-point.

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4 Parts and Controls

The user should become familiar with the dry-well calibrator and its parts (See Figures 1, 2, and 3).

4.1 Rear Panel

Power Cord - The removable power cord (not shown), attaches to the back side of the instrument. It plugs into a standard 115 VAC (optional 230 VAC) grounded socket.

4 Parts and Controls

Rear Panel

Figure 1 Back Panel

RS-232 - The RS-232 serial port provides a means for connecting the instru ment to a computer or a printer using the included serial cable.

Fan - The fans inside the instrument are controlled by the controller and vary in speed. Slots at the top and bottom of the instrument are provided for airflow.

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9011 Dual-Well Calibrator

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The area around the calibrator must be kept clear to allow adequate ventilation. The air is directed from the bottom to the top and may be hot. Allow 6 inches of open space around the calibrator to allow adequate ventilation.

Fuse Holders - On the rear panel are four user accessible fuse holders.

WARNING: Always leave enough clearance to allow for safe and easy

installation and removal of probes.

4.2 Front Panel

Power Switches - The power switches for both controllers are located on the front panel of the instrument. The switches are either on or off. The on position is for normal operation. The off position disconnects power to the entire unit.

Controller Display - The digital display is an important part of the temperature controller because it not only displays set and actual temperatures but also vari ous calibrator functions, settings, and constants. The display shows temperatures in units according to the selected scale °C or °F.

Controller Keypad - The four button keypad allows easy setting of the set-point temperature. The control buttons (SET, DOWN, UP, and EXIT) are used to set the calibrator temperature set-point, access and set other operating parameters, and access and set calibration parameters.

Figure 2 Front Panel

Setting the control temperature is done directly in degrees of the current scale. It can be set to one-tenth of a degree Celsius or Fahrenheit.

The functions of the buttons are as follows:

SET - Used to display the next parameter in the menu and to store parameters to the displayed value.

DOWN - Used to decrement the displayed value of parameters.

UP - Used to increment the displayed value.

EXIT - Used to exit a function and to skip to the next function. Any changes

made to the displayed value are ignored.

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4 Parts and Controls

4.3 Top Panel

Wel l Block - The well block openings are located on the top of both the cold and hot sides. These openings are for insertion of interchangeable inserts. The inserts are designed to accept probes of varying diameters. For insert details see Section 4.4, Constant Temperature Block Assembly.

Display Hold - One set of Display Hold connectors are available for each block. These connectors allow external switches to be connected and controlled by the instrument.

4.4 Constant Temperature Block Assembly

Top Panel

The contant temperature block assemblies provide a relatively constant and ac curate temperature environment for sensors to be calibrated. High-temperature platinum RTDs imbedded in the block assemblies senses and control the tem perature of the blocks. Inserts for use in the constant temperature block assem bliesareshowninFigure3.

Warning: The air over the constant temperature block assembly can reach

temperatures greater that 200°C for high temperature (400°C and higher) dry-wells. Probes and inserts may be hot and should only be inserted and removed from the instrument when the instrument is set at temperatures less than 50°C. Use extreme care when removing hot inserts.

Insert “A” has six holes that accept probe diameters of 1/16", 1/8, 3/16, 1/4", 3/8", and 1/2".

Insert “B” has six holes, two of each that accept probe diameters of 3/16", 1/4", and 3/8".

Insert “C” has six holes (cold) or eight holes (hot) that accept probe diameters of 1/4".

Insert “D” has six holes, two that accept probe diameter of 3 mm, two that ac cept probes of 4 mm diameter, and two that accept probes of 6 mm diameter.

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9011 Dual-Well Calibrator

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3/16"

(4.8 mm)

1/4"

(6.35 mm)

Hot Block

Removable Insert Well

1.45" (37 mm) I.D.

Cold Block

Removable Insert Well

1.25" (32 mm) I.D.

1/8" (3.2 mm)

3/16" (4.8 mm)

1/16" (1.6 mm)

1/2" (12.7 mm)

1/8" (3.2 mm)

1/4"

(6.35 mm)

Figure 3 Interchangeable Insert Options

Insert “A”

Insert “C”

1/4" (6.35 mm)

3/8" (9.5 mm)

3/16" (4.8 mm)

Cold block insert shown (Hot block “C” insert includes eight 1/4" wells)

3/16" (4.8 mm)

3/8" (9.5 mm)

1/4" (6.35 mm)

6 mm

3 mm

4 mm

Insert “B”

Insert “D”

1/4" (6.35 mm)

3/8" (9.5 mm)

3/16" (4.8 mm)

4 mm

6 mm

3 mm

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5 General Operation

5.1 Setting the Temperature

5 General Operation

Setting the Temperature

Section 6.2 explains in detail how to set the temperature set-point on the cali brator using the front panel keys. The procedure is summarized here.

(1) Press “SET” twice to access the set-point value.

(2) Press “UP” or “DOWN” to change the set-point value.

(3) Press “SET” to program in the new set-point.

(4) Press and hold “EXIT” to return to the temperature display.

When the set-point temperature is changed the controller switches the well heater on or off to raise or lower the temperature. The displayed well tempera ture gradually changes until it reaches the set-point temperature. The well re quires considerable time to reach the set-point depending on the span. Additional time is required to stabilize within ±0.1°C of the set-point.

5.2 Changing Display Units

This instrument can display temperature in Celsius or Fahrenheit. The temperature units are shipped from the factory set to Celsius.

1 - Press “SET” three times from the temperature display to show

Un= C

2 - Press “UP” or “DOWN” to change units.

3 - Press “SET” to save the setting or “EXIT” to continue without changing the setting.

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6 Controller Operation

Well Temperature

This chapter discusses in detail how to operate the dry-well temperature con troller using the front control panel. Using the front panel key-switches and LED display the user may monitor the well temperature, set the temperature set-point in degrees C or F, monitor the heater output power, adjust the control ler proportional band, and program the calibration parameters, operating pa rameters, and serial interface configuration. Operation of the functions and parameters are shown in the flowchart in Figure 4 on page 20. This chart may be copied for reference.

In the following discussion a button with the word SET, EXIT, UP, or DOWN indicates the panel button, while the dotted box indicates the display reading. Explanations of the button or display reading are to the right of each button or display value.

6.1 Well Temperature

The digital LED display on the front panel allows direct viewing of the actual well temperature. This temperature value is normally shown on the display. The units, C or F, of the temperature value are displayed at the right. For example,

100.00C Well temperature in degrees Celsius

The temperature display function may be accessed from any other function by pressing and holding the “EXIT” button.

6.2 Temperature Set-point

The temperature set-point can be set to any value within the range and with res olution as given in the specifications. Be careful not to exceed the safe upper temperature limit of any device inserted into the well.

Setting the temperature involves selecting the set-point memory and adjusting the set-point value.

6.2.1 Programmable Set-points

The controller stores 8 set-point temperatures in memory. The set-points can be quickly recalled to conveniently set the calibrator to a previously programmed temperature set-point.

To set the temperature, first select the set-point memory. This function is ac cessed from the temperature display function by pressing “SET”. The number of the set-point memory currently being used is shown at the left on the display followed by the current set-point value.

100.00C Well temperature in degrees Celsius

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9011 Dual-Well Calibrator

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Operating

Parameters

SET

Adj. HL

SET/EXIT

Enable Switch Status

Disable Switch Status

Set-Point Resistance

EXIT

SET

SET/EXIT

Program Menu

SET

Number of Setpoints

SET

Select SetpointSelect Setpoint

EXIT

Soak Time

SET

Program Function Mode

EXIT

Program Control

Display

Temperature

SET

Select Setpoint

SET/EXIT

Adjust Setpoint

SET/EXIT

Units °C/°F

SET/EXIT

Scan On/Off

SET/EXIT

Scan Rate

SET/EXIT

EXIT

Secondary Functions

SET

DOWN

SET

DOWN

SET

EXIT

Display Power

SET/EXIT

Set Proportional Band

SET/EXIT

Configuration Menu

SET

Menu Legend:

Press “SET” to step through the menu and to store the parameter value.

Press “EXIT” briefly to skip a parameter without storing the parameter value.

Hold “EXIT” ( 2 seconds) to exit the menu

and display the temperature

†

Cold side only

‡

Hot side only

DO NOT CHANGE THESE VALUES

EXIT

Cal

SET

Hard

Cutout

SET/EXIT

Select R0

Adjust R0

SET/EXIT

Select ALPHA

Adjust ALPAH

SET/EXIT

Select DELTA

Adjust DELTA

SET/EXIT

Select BETA

Adjust BETA

SET/EXIT

x 5

Hot Side Only

‡

†

Cold Side Only

†

EXIT

DOWN

EXIT

Serial

Interface

SET

Baud

Rate

Adjust

Baud Rate

SET/EXIT

Sample Period

Adj. Sample

Period

SET/EXIT

Duplex

Mode

Adj. Duplex

Mode

SET/EXIT

Linefeed

Adjust

Linefeed

SET/EXIT

DOWN

†

Cold Side Only

†

Cold Side Only

†

Figure 4 Controller Operation Flow Chart

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6 Controller Operation

Temperature Set-point

Access set-point memory

1 100. Set-point memory 1 location, 100°C currently used

To change to another set-point memory press “UP” or “DOWN”.

4 300. New set-point memory 4 location, 300°C

Press “SET” to accept the new selection and access the set-point value. Press “EXIT” to continue and to ignore any changes.

Accept selected set-point memory

6.2.2 Set-point Value

The set-point value may be adjusted after selecting the set-point memory and pressing “SET”.

4 200. Set-point 4 value in°C

If the set-point value does not need to be changed, press and hold “EXIT” to resume displaying the well temperature. To change the set-point value, press “SET” and then “UP”.

220.00 New set-point value

When the desired set-point value is reached, press “SET” to accept the new value and access the temperature scale units selection. If “EXIT” is pressed, any changes made to the set-point are ignored.

Accept new set-point value

6.2.3 Temperature Scale Units

The temperature scale units of the controller maybe set by the user to degrees Celsius (°C) or Fahrenheit (°F). The units are used in displaying the well tem perature, set-point, proportional band, and high limit.

Press “SET” after adjusting the set-point value to change display units.

Un= C Scale units currently selected

Press “UP” or “DOWN” to change the units.

Un= F New units selected

Press “SET” to accept the new units or “EXIT” to cancel.

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6.3 Scan

The scan rate can be set and enabled so that when the set-point is changed the dry-well heats or cools at a specified rate (degrees per minute) until it reaches the new set-point. With the scan disabled the dry-well heats or cools at the maximum possible rate.

6.3.1 Scan Control

The scan is controlled with the scan on/off function that appears in the main menu after the temperature scale units.

Sc=OFF Current scan setting

Press “UP” or “DOWN” to toggle the scan on or off.

Press “SET” to accept the present setting and continue.

Sc=On Scan function on

Accept scan setting

6.3.2 Scan Rate

The scan rate can be set from 0.1 to 50.0°C/min. The maximum scan rate, however, is actually limited by the natural heating or cooling rate of the instrument. This rate is often less than 50°C/min, especially when cooling.

The scan rate function appears in the main menu after the scan control function. The scan rate units are in degrees Celsius per minute, regardless of the selected units.

Sr=2.0 Current scan rate setting in °C/min

Press“UP”or“DOWN”tochangethescanrate.

Sr=3.0 New scan rate

Press “SET” to accept the new scan rate and continue.

Accept scan rate

6.4 Temperature Display Hold

There are two sets of display hold terminals located on the top of the 9011, one for the cold side and one for the hot side. The display hold terminals are used for testing thermal switches.

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6 Controller Operation

Temperature Display Hold

CAUTION: Do not apply any type of voltage to the display hold termi

nals. Applying a voltage to the terminals may cause damage to the con troller.

6.4.1 Switch Status

Connect the thermal switch to the display hold terminals on the either the hot or cold side. To enable the Switch Status while displaying the temperature, press "UP" on the hot or cold side. The letter "o" (switch open) or "c" (switch closed) appears to the left of the display and flashes when it changes states. When the Switch Status is enabled, the displayed temperature does not show the hundredth place or the units. (For example, if the switch is open and the temperature is 25°C, "o 25.0" is displayed.) To disable the Switch Status, press the "DOWN" key.

When the Switch Status is displayed, the Display Hold is also enabled, allow ing the operator to view the temperature at which the switch changed states and the status of the thermal switch.

When the thermal switch changes states the controller does the following.

1. Displays the temperature at which the switch changed states.

2. Flashes the new switch status.

3. The controller continues in the above state until either the thermal switch is returned to its original state or the set-point temperature changes.

Note: This feature is a useful to quickly monitor thermal switch state changes with a rough idea of accuracy but is not accurate when compared with the displayed temperature. Enable Scan Hold (see Section 6.4.2, Scan Hold) to improve the accuracy.

The following example demonstrates the use of Switch Status using the Display Hold terminals.

Example 1

With the instrument displaying 25°C, set the set-point to 100°C and enable the Switch Status by pressing "UP". When the thermal switch changes states at say 50°C, the displayed temperature shows 50°C and the status flashes "o or c", while the block continues to 100°C. The display remains at the switched tem perature and "o or c" continues to flash until the switch changes status or a new set-point is set.

6.4.2 Scan Hold

To enable scan hold, first enable Switch Status/Display Hold and the Scan Con trol (see Section 6.3.1, Scan Control)prior to setting the set-point temperature.

Scan Hold is similar to Switch Status/Display Hold but instead of displaying the temperature at which the thermal switch changes status, it sets a new set-point temperature to the current temperature at which the thermal switch

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9011 Dual-Well Calibrator

User’s Guide

changed states. This feature allows for minimal block temperature scanning times and improved accuracy.

Example 2:

With the instrument displaying 25°C, set the set-point to 100°C and enable the Scan Hold feature. When the thermal switch changes states at 50°C, the con troller automatically sets a new set-point of 50°C and the status flashes either "o or c".

Note: There is a delay between the displayed temperature and the actual tem perature of the thermal switch. To achieve better accuracy when the thermal switch is tripped, the scan rate should be set for a slower time. The slower the scan rate the more time required to perform a test. The operator must determine the optimal scan rate for the specific application.

6.5 Ramp and Soak Program Menu

The ramp and soak program feature allows the user to program a number of set-points and have the dry-well automatically cycle between the temperatures, holding at each for a determined length of time. The user can select one of four different cycle functions.

The program parameter menu is accessed by pressing “SET” and then “UP”.

20.00C Well temperature

S+U

ProG Program menu

Press “SET” to enter the program menu

Access program menu

Enter program menu

6.5.1 Number of Program Set-points

The first parameter in the program menu is the number of set-points to cycle through. Up to 8 set-points can be used in a ramp and soak program.

Pn=8 Number of program set-points

Use the “UP” or “DOWN” buttons to change the number from 2 to 8.

Pn=3 New number of program set-points

Press “SET” to continue. Pressing “EXIT” causes any changes made to the pa rameter to be ignored.

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6 Controller Operation

Ramp and Soak Program Menu

Save new setting

6.5.2 Set-points

The next parameters are the program set-points.

1 25 First set-point

Use the “UP” or “DOWN” buttons to select any of the set-points.

3 10 Third set-point

Press “SET” to change the set-point.

10.00 Set-point value

Use “UP” and “DOWN” to change the set-point value.

13.50 New set-point value

Press “SET” to save the new set-point value.

The other set-points can also be set in the same manner. Once the set-points are programmed as desired press “EXIT” to continue.

Continue to next menu function

6.5.3 Program Soak Time

The next parameter in the program menu is the soak time. This is the time, in minutes, for which each of the program set-points is maintained after settling before proceeding to the next set-point. The duration is counted from the time the temperature settles to within a specified stability.

Pt=15 Soak time in minutes

Use“UP”or“DOWN”tochangethetime.

Pt=5 New soak time

Press “SET” to continue.

Save new setting

6.5.4 Program Function Mode

The next parameter is the program function or cycle mode. There are four pos sible modes which determine whether the program scans up (from set-point 1

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User’s Guide

to n) only or both up and down (from set-point n to 1), and also whether the program stops after one cycle or repeat the cycle indefinitely. The table below shows the action of each of the four program mode settings.

Function Action

1 up-stop

2 up-down-stop

3 up-repeat

4 up-down-repeat

Use the “UP” or “DOWN” buttons to change the mode.

Press “SET” to continue.

Pf=1 Program mode

Pf=4 New mode

Save new setting

6.5.5 Program Control

The final parameter in the program menu is the control parameter. Three options are available for controlling the ramp and soak program. The options are “GO” (start the program from the beginning), “Cont” (continue the program from where it was when it was stopped), or “OFF” stop the program.

P=OFF Program presently off

Use“UP”or“DOWN”tochangetheprogramstate.

Pr=Cont Start cycle from beginning

Press “SET” to activate the new program control command and return to the temperature display.

Activate new command.

6.6 Set-point Resistance

The set-point resistance is the resistance the instrument is trying to make the control sensor achieve and is calculated in the firmware using the set-point tem perature. This value is not directly adjustable but is recalculated when the set-point temperature is changed. The set-point resistance is used to perform a calibration adjustment using the Callendar-Van Dusen R versus T curve fit. The

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6 Controller Operation

Secondary Menu

instrument must be at temperature and stable prior to taking the set-point resis tance reading.

To display the Set-point Resistance, press “SET” and “DOWN” simultaneously when the temperature is displayed. When the “SET” and “DOWN” buttons are released the temperature is again displayed.

99.222 Current set-point resistance setting is displayed

6.7 Secondary Menu

Functions which are used less often are accessed within the secondary menu. The secondary menu is accessed by pressing “EXIT” while holding down “SET” and then releasing both. The first function in the secondary menu is the heater power display.

6.8 Heater Power

The temperature controller controls the temperature of the well by pulsing the heater on and off. The total power being applied to the heater is determined by the duty cycle or the ratio of heater on time to the pulse cycle time. By knowing the amount of heating, the user can tell if the calibrator is heating up to the set-point, cooling down, or controlling at a constant temperature. Monitoring the percent heater power, allows the user to know the stability of the well temperature. With good control stability the percent heating power should not fluctuate more than ±1% within one minute.

The heater power display is accessed in the secondary menu. Press “EXIT” while holding down “SET” and then release both. The heater power is dis played as a percentage of full power.

100.00C Well temperature

S+E

Access heater power in secondary menu

SEC Flashes SEC for secondary menu and then displays the

heater power

12.0P Heater power in percent

To exit out of the secondary menu press “EXIT”. To continue on to the propor tional band setting function press “SET”.

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6.9 Proportional Band

In a proportional controller such as this, the heater output power is proportional to the well temperature over a limited range of temperatures around the set-point. This range of temperature is called the proportional band. At the bot tom of the proportional band, the heater output is 100%. At the top of the pro portional band, the heater output is 0 to 100 (hot side) and –100 to 100 (cold side). Thus, as the temperature rises the heater power is reduced, which conse quently tends to lower the temperature back down. In this way the temperature is maintained at a fairly constant temperature.

The temperature stability of the well and response time depend on the width of the proportional band. If the band is too wide, the well temperature deviates ex cessively from the set-point due to varying external conditions. This is because the power output changes very little with temperature and the controller cannot respond very well to changing conditions or noise in the system. If the propor tional band is too narrow, the temperature may swing back and forth because the controller overreacts to temperature variations. For best control stability, the proportional band must be set for the optimum width.

The proportional band width is set at the factory and printed on the Report of

Figure 5 Temperature fluctuations at various proportional band settings

Calibration. The proportional band width may be altered by the user if desired to optimize the control characteristics for a particular application.

The proportional band width is easily adjusted from the front panel. The width may be set to discrete values in degrees C or F depending on the selected units. The proportional band adjustment is accessed within the secondary menu. Press “EXIT” while holding down “SET” and then releasing both to enter the sec ondary menu and show the heater power. Then press “SET” to access the pro portional band.

S+E

Access heater power in secondary menu

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6 Controller Operation

Controller Configuration

SEC Flashes SEC for secondary menu and then displays the

heater power

12.0P Heater power in percent

Access proportional band

ProP Flashes and then displays the setting

4.1

To change the proportional band, press “UP” or “DOWN”.

10.0

To accept the new setting press “SET”. Press “EXIT” to continue without storing the new value.

Accept the new proportional band setting

Proportional band setting

New proportional band setting

6.10 Controller Configuration

The controller has a number of configuration and operating options and calibration parameters which are programmable via the front panel. These are accessed from the secondary menu after the proportional band function by pressing “SET”. Pressing “SET” again enters the first of three sets of configuration parameters - operating parameters, serial interface parameters, and cali bration parameters. The menus are selected using “UP” or “DOWN” and then pressing “SET”.

6.11 Operating Parameters

The operating parameters menu is indicated by,

PAr Operating parameters menu

The operating parameters menu contains the High Limit parameter.

6.12 High Limit

The High Limit parameter adjusts the upper set-point temperature. The factory default and maximum are set to the instrument temperature limit. For safety, a user can adjust the High Limit down so the maximum temperature set-point is restricted.

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9011 Dual-Well Calibrator

User’s Guide

Press “UP” or “DOWN” to adjust the setting.

HL Flashes and then displays the setting

H=375 Current High Limit setting

H=300 New High Limit setting

To accept the new setting, press “SET”. Press “EXIT” to continue without stor ing the new value.

Accept the new High Limit setting

6.13 Serial Interface Parameters

Note: Both sides of the 9011 must be turned on within three seconds of one an other for the serial communications to function on the hot side. If “ICL” is displayed on either the hot or the cold side of the instrument, the serial port is not controlled by the hot side. If “ICL” is displayed and control is desired from only the front panel, press any button (“SET”, “UP”, “DOWN”, or “EXIT”) to remove “ICL” from the display and control the instrument from the front panel buttons only.

This instrument has two controllers, one for the hot side and one for the cold side. The cold side controller acts as the master for the serial communications and the hot side controller acts as the slave.

The serial RS-232 interface parameters menu is indicated by,

SErIAL Serial RS-232 interface parameters menu

Press “SET” to enter the menu. The serial interface parameters menu contains parameters which determine the operation of the serial interface. The parame ters in the menu are - BAUD rate, sample period, duplex mode, and linefeed.

6.13.1 Baud Rate (cold side only)

The baud rate is the first parameter in the menu. The baud rate setting deter mines the serial communications transmission rate.

The baud rate parameter is indicated by,

bAUd Flashes for one second and then displays the setting

2400 b Current baud rate

Page 35

The baud rate of the serial communications may be programmed to 300, 600, 1200, 2400 (default), 4800, or 9600 baud. Use “UP” or “DOWN” to change the baud rate value.

4800 b New baud rate

Press “SET” to accept the new setting or “EXIT” to abort the operation and skip to the next parameter in the menu.

6.13.2 Sample Period (hot and cold sides)

The sample period is the next parameter in the menu. The sample period is the time period in seconds between temperature measurements transmitted over the serial interface. If the sample period is set to 5, the instrument transmits the current measurement over the serial interface approximately every five seconds. The automatic sampling is disabled with a sample period of 0. The sample pe riod is indicated by,

SPEr Flashes for one second and then the serial sample period

setting is displayed

SA=1 Current sample period (seconds)

6 Controller Operation

Serial Interface Parameters

Adjust the value by using “UP” or “DOWN”.

SA=60 New sample period

Press “SET” to accept the new setting or “EXIT” to abort the operation and skip to the next parameter in the menu.

6.13.3 Duplex Mode (cold side only)

The next parameter is the duplex mode. The duplex mode may be set to full du plex or half duplex. With full duplex any commands received by the master controller via the serial interface are immediately executed and echoed or trans mitted back to the device of origin. With half duplex the commands are exe cuted but not echoed. The duplex mode parameter is indicated by,

dUPL Flashes for one second and then the serial duplex mode

setting is displayed

d=FULL Current duplex mode setting

The mode may be changed using “UP” or “DOWN”.

d=HALF New duplex mode setting

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9011 Dual-Well Calibrator

User’s Guide

Press “SET” to accept the new setting or “EXIT” to abort the operation and skip to the next parameter in the menu.

6.13.4 Linefeed (cold side only)

The final parameter in the menu is the linefeed mode. This parameter enables (on) or disables (off) transmission of a linefeed character (LF, ASCII 10) after transmission of any carriage-return. The linefeed parameter is indicated by,

The setting may be changed using “UP” or “DOWN”.

LF=OFF New linefeed setting

Press “SET” to accept the new setting or “EXIT” to abort the operation and skip to the next parameter in the menu.

6.14 Calibration Parameters

LF Flashes for one second and then the serial linefeed setting

is displayed

LF=On Current linefeed setting

The operator of the instrument controller has access to a number of the calibration constants namely the Hard Cutout, R0, ALPHA, DELTA, and BETA. These values are set at the factory and must not be altered. The correct values are important to the accuracy and proper and safe operation of the instrument. Access to these parameters is available to the user so that in the event that the controller memory fails the user may restore these values to the factory set tings. The user should have a list of these constants and their settings with the instrument manual.

CAUTION: DO NOT change the values of the instrument calibration con

stants from the factory set values. The correct setting of these parameters is important to the safety, proper operation, and performance of the in strument.

The calibration parameters menu is accessed by pressing “UP” from the serial interface menu and is indicated by the following.

CAL Calibration parameters menu

Press “SET” five times to enter the menu. The calibration parameters menu contains the parameters, Hard Cutout, R0, ALPHA, DELTA, and BETA that characterize the resistance-temperature relationship of the platinum control sen sor. These parameters may be adjusted to improve the accuracy of the calibrator.

Page 37

The calibration parameters are accessed by pressing “SET” after the name of the parameter is displayed. The value of the parameter may be changed using “UP” or “DOWN”. After the desired value is reached, press “SET” to set the parameter to the new value. Pressing “EXIT” causes the parameter to be skipped ignoring any changes that may have been made.

6.14.1 Hard Cutout (hot side only)

6 Controller Operation

Calibration Parameters

This parameter is the temperature above which the unit shuts down automati cally and is only adjustable through the hot side. The value of this parameter is set at the factory and cannot be changed by the user.

The hard cutout parameter is indicated by,

Press “EXIT” to continue to the next parameter.

6.14.2 R0

This probe parameter refers to the resistance of the control probe at 0°C. The value of this parameter is set at the factory for best instrument accuracy. The value ranges from 95 to 105. The R0 parameter is indicated by,

To change the R0 setting, press “UP” or “DOWN”.

CutOut Flashes for one second and then the hard cutout setting is

displayed

670 Current hard cutout setting

r0 Flashes for one second and then the R0 setting is displayed

100.014 Current R0 setting (100.014)

99.999 New R0 setting

To accept the new setting, press “SET”. Press “EXIT” to continue without stor ing the new value.

6.14.3 ALPHA

This probe parameter refers to the average sensitivity of the probe between 0 and 100°C. The value of this parameter is set at the factory for best instrument accuracy. (The ALPHA value is the displayed value times 10

aLpHa Flashes for one second and then the ALPHA setting is

Accept the new R0 setting

displayed

–7

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38530 Current ALPHA setting

To change the ALPHA setting, press “UP” or “DOWN”.

38600 New ALPHA setting

To accept the new setting, press “SET”. Press “EXIT” to continue without stor ing the new value.

Accept the new ALPHA setting

6.14.4 DELTA

This probe parameter characterizes the curvature of the resistance-temperature relationship of the sensor. The value of this parameter is set at the factory for best instrument accuracy.

deLta Flashes for one second and then the DELTA setting is

displayed

1.5070 Current DELTA setting

To change the DELTA setting, press “UP” or “DOWN”.

1.6320 New DELTA setting

To accept the new setting, press “SET”. Press “EXIT” to continue without storing the new value.

Accept the new DELTA setting

6.14.5 BETA (cold side only)

This probe parameter relates to the higher order nonlinearity of the sensor be low 0°C. The value is set at the factory for best instrument accuracy.

bEtA Flashes for one second and then the BETA setting is

displayed

0.111 Current BETA setting

To change the BETA setting, press “UP” or “DOWN”.

0.100 New BETA setting

To accept the new setting, press “SET”. Press “EXIT” to continue without stor ing the new value.

Page 39

6 Controller Operation

Calibration Parameters

Accept the new BETA setting

Page 40

7 Digital Communication Interface

This instrument is capable of communicating with and being controlled by other equipment through the digital serial interface.

With a digital serial interface, the instrument may be connected to a computer or other equipment. This allows the user to set the set-point temperature, moni tor the temperature, and access any of the other controller functions, all using remote communications equipment. Communications commands are summa rized in Table 2 on page 40.

7.1 Serial Communications

The RS-232 serial interface allows serial digital communications over fairly long distances (15.24 meters). With the serial interface the user may access any of the functions, parameters and settings discussed in Section 6, Controller Op eration with the exception of the BAUD rate setting. The serial interface oper ates with eight data bits, one stop bit, and no parity.

7.1.1 Wiring

The serial communications cable attaches to the calibrator through the DB-9 connector on the back of the instrument. Figure 6 shows the pin-out of this connector and suggested cable wiring. To eliminate noise, the serial cable should be shielded with low resistance between the connector (DB9) and the shield.

Serial Communications

7.1.2 Setup

Before operation the serial in terface must first be set up by programming the BAUD rate and other configuration parame ters. These parameters are pro grammed within the serial interface menu of the cold side controller. The serial interface parameters menu is outlined in Figure 4 on page 20.

To enter the serial parameter menu on the cold side control ler, press “EXIT” while holding

Figure 6 Serial Cable Wiring

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9011 Dual-Well Calibrator

User’s Guide

down “SET”, then release both buttons to enter the secondary menu. Press “SET” repeatedly until the display reads “PAr”. Press “UP” once, the serial in terface menu is indicated with “SErIAL”. Finally press “SET” to enter the se rial parameter menu. In the serial parameters menu are the baud rate, the sample period, the duplex mode, and the linefeed parameter.

7.1.2.1 Baud Rate (Cold Side Only)

The baud rate is the first parameter in the menu and is indicated by “BAUd”. Press “SET” to choose to set the baud rate. The current baud rate value is dis played. The serial communications baud rate may be programmed to 300, 600, 1200, 2400, 4800, or 9600 baud. The baud rate is pre-programmed to 2400 baud. Use “UP” or “DOWN” to change the baud rate setting. Press “SET” to accept the new setting or “EXIT” to abort the operation and skip to the next pa rameter in the menu.

7.1.2.2 Sample Period

The sample period is the next parameter in the menu and is indicated by “SPEr”. The sample period is the time period in seconds between temperature measurements transmitted from the serial interface. If the sample period is set to 5, the instrument transmits the current measurement over the serial interface approximately every five seconds. The automatic sampling is disabled with a sample period of 0. Press “SET” to choose to set the sample period. Adjust the period with “UP” or “DOWN”. Press “SET” to save the new sample rate to the displayed value or “EXIT” to abort the operation and skip to the next parameter in the menu.

7.1.2.3 Duplex Mode

The next parameter is the duplex mode indicated with “dUPL”. The duplex mode may be set to half duplex (HALF) or full duplex (FULL). With full duplex any commands received by the controller via the serial interface are immedi ately executed and echoed or transmitted back to the device of origin. With half duplex the commands are executed but not echoed. The default setting is full duplex. The mode may be changed using “UP” or “DOWN”. Press “SET” to accept the new setting or “EXIT” to abort the operation and skip to the next pa rameter in the menu.

7.1.2.4 Linefeed

The final parameter in the menu is the linefeed mode and is indicated by “LF”. This parameter enables (“On”) or disables (“OFF”) transmission of a linefeed character (LF, ASCII 10) after transmission of any carriage-return. The default setting is with linefeed on. The mode may be changed using “UP” or “DOWN”. Press “SET” to accept the new setting or “EXIT” to abort the opera tion and return to the beginning of the serial interface menu.

Page 42

7.1.3 Serial Operation

The serial communications uses 8 data bits, one stop bit, and no parity. The set-point and other commands may be sent via the serial interface to set the temperature set-point and view or program the various parameters. The inter face commands are discussed in Section 7.2. All commands are ASCII charac ter strings terminated with a carriage-return character (CR, ASCII 13).

7.2 Interface Commands

7 Digital Communication Interface

Interface Commands

The various commands for accessing the calibrator functions via the digital se rial interface are listed in this section (see Table 2 beginning on page 40). These commands are used with the RS-232 serial interface. The commands are termi nated with a carriage-return character (CR, ASCII 13). The interface makes no distinction between upper and lower case letters, hence either may be used. Commands may be abbreviated to the minimum number of letters which deter mines a unique command. A command may be used to either set a parameter or display a parameter depending on whether or not a value is sent with the com mand following a “=” character. For example, an “s” <CR> returns the current set-point and “s=50.0” <CR> sets the set-point to 50.0 degrees.

In the following list of commands, characters or data within brackets, “[” and “]”, are optional for the command. A slash, “/”, denotes alternate characters or data. Numeric data, denoted by “n”, may be entered in decimal or exponential notation. Characters are shown in lower case although upper case may be used. Spaces may be added within command strings and will simply be ignored. Backspace (BS, ASCII 8) may be used to erase the previous character. A terminating (CR, ASCII 13) is implied with all commands.

Note: Commands that are preceded by a “C:” or an “H:” access the cold or hot side respectively. If the “C:” or “H:” are not used, the command accesses the cold side. It is highly recommended to always use “C:” or “H:” prefixes to en sure setting or reading a parameter on the correct controller. Responses to com mands do not indicate which controller the setting or reading applies to or came from.

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Table 2 Controller Communications Commands

Command Description

Command

†

Format

Command

†

Example

Returned

Returned Example

Acceptable Values

Display Temperature

Read current set-point s[etpoint] s set: 9999.99 {C orF}set: 150.00 C

Set current set-point to n s[etpoint]=n s=450 Controller

Range

Read temperature unit u[nits] u u:{C or F} u:C

Set temperature units: u[nits]=c/f

CorF

Set temperature units to Celsius u[nits]=c u=c

Set temperature units to

u[nits]=f u=f

Fahrenheit

Read scan function sc[an] sc scan: {ON or OFF} scan: ON

Set scan function: sc[an]=on/of[f]

ON or OFF

Turn scan function on sc[an]=on sc=on

Turn scan function off sc[an]=of[f] sc=of

Read scan rate sr[ate] sr srat: 999.9 {C or

F}/min

Setscanrateto

degrees per

sr[ate]=

sr=5 0.1 to 50°C

srat: 10.0 C/min

minute

Read display temperature hold

hm[ode] hm hmode: AUTO hmode: AUTO

mode

Read hold status ho[ld] ho ho:{closed or

open}, 9999.9 {C or

ho: open,

75.0 C

Read temperature t[emperature] t t: 9999.9 {C or F} t: 55.69 C

Secondary Menu

Read proportional band setting pr[op-band] pr pb: 999.99999 pb: 15.9

Set proportional band to

pr[op-band]=n pr=8.83 Depends on

Configuration

Read cutout setting c[utout] c cu: 9999 {C or F} cu: 620 C, in

Read heater power

po[wer] po po: 9999.9 po: 1.0

(duty cycle)

Ramp and Soak Menu

Read number of programmable

pn pn pn: 9 pn: 2

set-points

Set number of programmable set-points to

Read programmable set-point number

Set programmable set-point num

nton

ber

pn=

psn=

pn=4 2 to 8

ps3 psn: 9999.99 {C orF}ps1: 50.00 C

ps3=50 1 to 8, Instru

ment Range

Page 44

Controller Communications Commands continued

7 Digital Communication Interface

Interface Commands

Command Description

Command

†

Format

Command

†

Example

Returned

Returned Example

Acceptable Values

Read program set-point soak time pt pt ti: 999 ti: 5

Set program set-point soak time to

minutes

pt=

pt=5 0 to 500

Read program control mode pc pc prog: {OFF or ON} prog: OFF

Set program control mode: pc=g[o]/s[top]/c[ont]

GO or STOP or CONT

Start program pc=g[o] pc=g

Stop program pc=s[top] pc=s

Continue program pc=c[ont] pc=c

Read program function pf pf pf: 9 pf: 3

Set program function to

pf=

pf=2 1to4

Configuration Menu

Operating Parameters Menu

Read high limit hl hl hl:999 hl:126

Set high limit hl=n hl=90 Hot: 25 to

670°C Cold: 25 to 140°C

Serial Interface Menu

Read serial sample setting sa[mple] sa sa: 999 sa: 1

Set serial sampling setting to

sa[mple]=

sa=0 0to999

seconds

Read serial duplex mode (cold

du[plex] du: du:{FULL of HALF} du: FULL

side only)

Set serial duplex mode: (cold

du[plex]=f[ull]/h[alf]

FULL or HALF

side only)

Set serial duplex mode to full du[plex]=f[ull] du=f

Set serial duplex mode to half du[plex]=h[alf] du=h

Read serial linefeed mode (cold

lf[eed] lf lf: ON

side only)

Set serial linefeed mode: (cold

lf[eed]=on/of[f]

ON or OFF

side only)

Set serial linefeed mode to on lf[eed]=on lf=on

Set serial linefeed mode to off lf[eed]=of[f] lf=of

Calibration Menu (WARNING – changing the following calibration values may change the accuracy of the instrument.)

Read R0 calibration parameter r[0] r r0: 999.999 r0: 100.578

Set R0 calibration parameter to

Read ALPHA calibration

r[0]=n r=100.324 95.0 to 105.0

al[pha] al al: 9.99999999 al: 0.0038573

parameter

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Controller Communications Commands continued

Command Description

Set ALPHA calibration parameter to

Command

†

Format

al[pha]=n al=0.0038433 0.0032 to

Command

†

Example

Returned

Returned Example

Acceptable Values

0.0042

Read DELTA calibration parameter de[lta] de de: 9.99999 de: 1.46126

Set DELTA calibration parameter to

Read BETA calibration parameter

de[lta]=

de=1.45 1.0 to 1.9

be[ta] be be: 9.999 be: 0.342

(cold side only)

Set BETA calibration parameter to

(cold side only)

be[ta]=

be=0.342 –25.0 to 25.0

Miscellaneous (not on menus)

Read firmware version number *ver[sion] *ver ver.9999,9.99 ver.9011,1.11

Read structure of all commands h[elp] h list of commands

Read all parameters all all list of parameters

and their values

Legend: [] Optional Command data

/ Alternate characters or data

{} Returns either information

n Numeric data supplied by user—may be entered in decimal or exponential notation

9 Numeric data returned to user

x Character data returned to user

Note: When DUPLEX is set to FULL and a command is sent to READ, the command is returned followed by

a carriage return and linefeed. Then the value is returned as indicated in the RETURNED column.

†

Note: Commands that are preceded by a “C:” or an “H:” access the cold or hot side respectively. If the “C:” or

“H:” are not used, the command accesses the cold side.

Page 46

8 Test Probe Calibration

For optimum accuracy and stability, allow the calibrator to warm up for 10 minutes after power-up and then allow adequate stabilization time after reach ing the set-point temperature. After completing the test probe calibration proce dure, allow the well to cool by setting the temperature to 25°C for one-half hour before switching the power off. Actual use of this instrument should be determined by your applicable Quality Assurance requirements. The following procedure is provided for information only.

8.1 Calibrating a Single Probe

Insert the probe to be calibrated into the test well of the instrument. The probe should fit snugly into the calibrator test well yet should not be so tight that it cannot be easily removed. Avoid any dirt or grit that may cause the probe to jam into the test well. Best results are obtained with the probe inserted to the full depth of the test well. Once the probe is inserted into the test well, allow adequate stabilization time to allow the test probe temperature to settle as described above. Once the probe has settled to the temperature of the test well, it may be compared to the calibrator display temperature.

8 Test Probe Calibration

Calibrating a Single Probe

CAUTION: Never allow foreign material into the probe holes of the

block. Fluids and other materials can damage the instrument causing binding and damage to your probe.

8.2 Dry-well Characteristics

There is a temperature gradient vertically in the test well. The heater has been applied to the block in such a way as to compensate for nominal heat losses out of the top of the dry-well. However, actual heat losses vary with design of the thermometer probes inserted into the calibrator and the temperature. For best results, insert probe to full depth of test well.

8.2.1 Stabilization and Accuracy

The stabilization time of the instrument depends on the conditions and temper atures involved. The well requires considerable time to reach the set-point de pending on the span. Additional time is required to stabilize within ±0.1°C of the set-point.

Inserting a cold probe into a test well requires another period of stabilizing de pending on the magnitude of the disturbance and the required accuracy. For ex ample, inserting a 0.25 inch diameter room temperature probe into a test well at 300°C takes 5 minutes to be within 0.1°C of its settled point and takes 10 min utes to achieve maximum stability.

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Speeding up the calibration process can be accomplished by knowing how soon to make the measurement. It is recommended that typical measurements be made at the desired temperatures with the desired test probes to establish these times.

Page 48

9 Calibration Procedure

9.1 Calibration Procedure

9 Calibration Procedure

Calibration Procedure

Calibration of this instrument should be performed at regularly scheduled inter vals by qualified authorized personnel in accordance with your company’s pol icy. The following is provided as a basis for developing your own procedure for calibrating this instrument.

9.1.1 Calibration Equipment

Calibration requires a standard thermometer that is adequately accurate and fits properly into one of the reference holes in each of the blocks. Recommended equipment includes a laboratory grade PRT with a length of 230 to 300 mm (9 to 12 inches) and a diameter of 4.76 or 6.35 mm (3/16 or 1/4 inches). The com bined accuracy of the PRT and the readout which is used to display the temper ature should be 0.025°C or better.

9.1.2 Calibration

The accuracy of the instrument over the full range is determined by the values of the calibration parameters R0, ALPHA, DELTA, and BETA (cold side). The calibration procedure involves measuring the error between the instrument and the reference thermometer at several temperature throughout the range and adjusting the calibration parameters as necessary to reduce the errors to within acceptable limits. The stated accuracy of the instrument can be found in the specification table in Section 2.1. Because of the way the calibration parameters affect the temperature the simplest way to proceed is to measure the errors at 0°C, 100°C, 140°C, and –25°C and adjust R0, ALPHA, DELTA, and BETA (cold side) at each point respectively. Follow these steps:

1. If “as found” data is required, first measure the error at various tempera tures throughout the range such as –25, 0, 25, 50, 75, 100, and 140°C. The errors are measured by setting the controller to the desired tempera ture, allowing the block to reach the temperature and stabilize, and read ing the actual temperature of the block with the standard thermometer. If the measured errors are all within acceptable limits, no further action is required and the remainder of this procedure is not necessary. If the ac curacy needs to be improved, continue with Step 2.

2. Set the set-point to 0°C and allow adequate time for the block to reach this temperature and stabilize. Adjust the R0 calibration parameter (see Section 6.14.2) to make the block temperature as measured with the stan dard thermometer match the set-point. The approximate ratio between a change in R0 and a change in temperature at 0°C is about 0.4 to 1. For example, if the block temperature is high by 0.1°C at 0°C, decrease R0 by 0.04.

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3. Set the set-point to 100°C and allow adequate time for the block to reach

4. Set the set-point to 140°C and allow adequate time for the block to reach

5. Set the set-point to –25°C and allow adequate time for the block to reach

6. Repeat Step 1 to ensure the instrument is now accurate throughout the

this temperature and stabilize. Adjust the ALPHA calibration parameter (see Section 6.14.3) to make the block temperature as measured with the standard thermometer match the set-point. The approximate ratio be

tween a change in ALPHA and a change in temperature at 100°C is about 0.00004 to 1. For example, if the block temperature is high by

0.1°C at 100°C, decrease ALPHA by 0.000004.

this temperature and stabilize. Adjust the DELTA calibration parameter (see Section 6.14.4) to make the block temperature as measured with the standard thermometer match the set-point. The approximate ratio be

tween a change in DELTA and a change in temperature at 140°C is about

-1.7 to 1. For example, if the block temperature is high by 0.1°C at 140°C, increase DELTA by 0.17.

this temperature and stabilize. Adjust the BETA calibration parameter (see Section 6.14.5) to make the block temperature as measured with the standard thermometer match the set-point. The approximate ratio between a change in BETA and a change in temperature at –25°C is about

-50 to 1. For example, if the block temperature is high by 0.1°C at –25°C, increase BETA by 5.0.

full range.

Page 50

10 Maintenance

This instrument has been designed with the utmost care. Ease of operation

•

and simplicity of maintenance have been a central theme in the product development. Therefore, with proper care the instrument should require very little maintenance. Avoid operating the instrument in an oily, wet, dirty, or dusty environment.

If the outside of the instrument becomes soiled, it may be wiped clean

•

with a damp cloth and mild detergent. Do not use harsh chemicals on the surface which may damage the paint.

It is important to keep the well of the calibrator clean and clear of any for

•

eign matter. Do not use fluid to clean out the well.

Use a commercially available plastic or felt brush, of appropriate diameter

•

for a tight fit without any fluid, to clean the well. Complete the cleaning process by using cotton swabs and air to remove any debris.

• Inserts should be cleaned periodically. For cold dry-wells operating below 0°C, you should always clean the inserts after operating the unit at or below 0°C.

• Use emery cloth or other similar material to clean the outside of the inserts. Ensure that the inserts are wiped clean of any debris loosened in the buffing process. Periodic cleaning of the outside of the inserts ensures easy insertion and removal of the inserts from the well.

• The dry-well calibrator should be handled with care. Avoid knocking or dropping the calibrator.

• Do not slam the probe stems into the well. This type of action can cause a shock to the sensor.

•

If a hazardous material is spilt on or inside the equipment, the user is re sponsible for taking the appropriate decontamination steps as outlined by the national safety council with respect to the material.

•

If the mains supply cord becomes damaged, replace it with a cord with the appropriate gauge wire for the current of the instrument. If there are any questions, call an Authorized Service Center (see Section 1.4) for more information.

•

Before using any cleaning or decontamination method except those rec ommended by Hart, users should check with an Authorized Service Cen ter (see Section 1.4) to be sure that the proposed method does not damage the equipment.

•

If the instrument is used in a manner not in accordance with the equip ment design, the operation of the dry-well may be impaired or safety haz ards may arise.

10 Maintenance

Page 51

11 Troubleshooting

This section contains information on troubleshooting, CE Comments, and a wiring diagram.

11.1 Troubleshooting Problems, Possible Causes, and Solutions

In the event that the instrument appears to function abnormally, this section may help to find and solve the problem. Several possible problem conditions are described along with likely causes and solutions. If a problem arises, please read this section carefully and attempt to understand and solve the problem. If the problem cannot otherwise be solved, contact an Authorized Service Center (see Section 1.4) for assistance. Be sure to have the instrument’s model num ber, serial number, voltage, and problem description available.

Problem Possible Causes and Solutions

Incorrect temperature reading

Incorrect R0, ALPHA, DELTA, or BETA parameters. Find the value for R0, ALPHA, DELTA, and BETA on the Report of Calibration. Reprogram the parameters into the instrument (see Section 6.14, Calibration Parameters). Allow the instrument to stabilize and verify the accuracy of the temperature reading.

The instrument heats or cools too quickly or too slowly

Unstable display

Controller locked up. The controller may have locked up due to a power surge or other aberration. Initialize the system by performing the Factory Reset Sequence.

Factory Reset Sequence. Hold “SET” and “EXIT” down at the same time while turning on the instrument. When “BUTTON” is displayed, release “SET” and “EXIT” and immediately press “SET” and “EXIT” again. The instrument displays shows ‘-init-‘, the model number, and the firmware version. Each of the controller parameters and calibration constants must be reprogrammed. The values can be found on the Re port of Calibration.

Incorrect scan and scan rate settings. The scan and scan rate settings may be set to unwanted values. Check the Scan and Scan Rate settings. The scan may be off (if the unit seems to be responding too quickly). The scan may be on with the Scan Rate set low (if unit seems to be responding too slowly).

Improper line voltage. Verify that the voltage reading in the bottom of the unit matches the source voltage.

Wait. Allow the instrument to stabilize for a few minutes.

Proportional band may be incorrect. Refer to the proportional band on the Report

of Calibration.

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Problem Possible Causes and Solutions

The display shows any error

Temperature can not be set above a certain point

“ICL” (Interconnect Link) error or

11.2 CE Comments

Controller problem. The error messages signify the following problems with the

controller.

Err 1

- a RAM error

Err 2

- a NVRAM error

Err 3

- a Structure error

Err 4

- an ADC setup error

Err 5

- an ADC ready error

Err 6

– a defective control sensor

Err 7

– a heater error

Initialize the system by performing the Factory Reset Sequence describe above.

Incorrect High Limit parameter. The High Limit parameter may be set below 150°C. Check this value as described in Section 6.11, Operating Parameters.

Power on problem. Both sides of the 9011 must be turned on within three seconds

Err

of one another for the serial communications to function on the hot side. If “ICL” is displayed on either the hot or the cold side of the instrument, the serial port does not control the hot side. If “ICL” is displayed and control is desired from only the front panel, press any button (“SET”, “UP”, “DOWN”, or “EXIT”) to remove “ICL” from the display and to control the instrument from the front panel buttons.

11.2.1 EMC Directive

Hart Scientific’s equipment has been tested to meet the European Electromagnetic Compatibility Directive (EMC Directive, 89/336/EEC). The Declaration of Conformity for your instrument lists the specific standards to which the unit was tested.

11.2.2 Low Voltage Directive (Safety)

In order to comply with the European Low Voltage Directive (73/23/EEC), Hart Scientific equipment has been designed to meet the IEC 1010-1 (EN 61010-1) and the IEC 1010-2-010 (EN 61010-2-010) standards.

Fluke 9011 User Manual

Table of Contents

Figures and Tables