Fluke 9140 User Manual

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Summary of Contents

Page 1 - User’ s Guide

9140Dry-well CalibratorUser’ s GuideRev. 5B1702Hart Scientific

Page 2 - Rev. 5B1702

ing power such as storage in a low humidity temperature chamber operat-ing at 50°C for 4 hours or more.•DO NOT use this instrument for any application

Page 3 - Table of Contents

ELECTRICAL SHOCK•These guidelines must be followed to ensure that the safety mechanismsin this instrument will operate properly. This instrument must

Page 4

•The instrument and any thermometer probes used with it are sensitive in-struments that can be easily damaged. Always handle these devices withcare. D

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Science Park Eindhoven 51085692 EC SonNETHERLANDSPhone: +31-402-675300Telefax: +31-402-675321E-mail: [email protected] Int'l CorporationS

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2 IntroductionThe Hart Scientific 9140 Mid-Range Field Calibrator may be used as a portableinstrument or bench top temperature calibrator for calibrat

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3 Specifications and EnvironmentalConditions3.1 SpecificationsThe following table lists the specifications for this instrument. Accuracy speci-ficatio

Page 8

operated in an excessively dusty or dirty environment. Maintenance and clean-ing recommendations can be found in the Maintenance Section of this manua

Page 9 - 1.2 Safety Information

4 Quick Start4.1 UnpackingUnpack the dry-well carefully and inspect it for any damage that may have oc-curred during shipment. If there is shipping da

Page 10 - Safety Information

dry-well will turn on and begin to heat to the previously programmed tempera-ture set-point. The front panel LED display will indicate the actual dry-

Page 11 - CAUTIONS

5 Parts and ControlsThe user should become familiar with the dry-well calibrator and its parts:5.1 Rear PanelFigure 1 on page 13.Power Cord - At the r

Page 12 - Authorized Service Centers

Rev. 5B1702Fluke Corporation, Hart Scientific Division799 E. Utah Valley Drive • American Fork, UT 84003-9775 • USAPhone: +1.801.763.1600 • Telefax: +

Page 13 - User’s Guide

around the two corners of the calibrator are provided for airflow. The areaaround the calibrator must be kept clear to allow adequate ventilation. The

Page 14 - 2 Introduction

EXIT – Used to exit a function and to skip to the next function. Any changesmade to the displayed value are ignored.5.3 Constant Temperature Block Ass

Page 15 - Conditions

•Insert D (comparison block): 2 each at 3 mm, 4 mm, and 6 mm9140 Dry-well CalibratorUser’s Guide16

Page 16 - 3.3 Warranty

6 General Operation6.1 Calibrator Set-UpPlace the calibrator on a flat surface with at least 6 inches of free space aroundthe instrument. Overhead cle

Page 17 - 4 Quick Start

•Using the same straight slot screwdriver, move the heater switch to dis-play “230V”. See the rear panel drawing in Figure 1 on page 13.NOTE: If the h

Page 18 - 4.4 Setting the Temperature

Using the same hole for the reference thermometer and the test probe may havebetter results. This however requires switching the probes which takes mo

Page 19 - 5 Parts and Controls

7 Controller OperationThis chapter discusses in detail how to operate the dry-well temperature con-troller using the front control panel. Using the fr

Page 20 - 5.2 Front Panel

9140 Dry-well CalibratorUser’s Guide22Figure 4 Controller Operation Flowchart

Page 21 - 5.3.2 Probe Sleeves and Tongs

100.0 CWell temperature in degrees CelsiusSAccess set-point memory1. 100.Set-point memory 1, 100°C currently usedTo change to another set-point memory

Page 22

Un= F New units selected7.3 ScanThe scan rate can be set and enabled so that when the set-point is changed thedry-well heats or cools at a specified r

Page 23 - 6 General Operation

Table of Contents1 Before You Start . . . . . . . . . . . . . . . . . . . . . . . . . . 11.1 Symbols Used . . . . . . .

Page 24 - 6.5 Calibrating Probes

7.4 Temperature Display HoldThe 9140 has a display hold function which allows action of an external switchto freeze the displayed temperature and stop

Page 25 - Calibrating Probes

sistor. The calibrator measures the voltage at the red terminal and interprets+5V as open and 0V as closed.7.4.4 Switch Test ExampleThis section descr

Page 26 - 7 Controller Operation

is. With good control stability the percent heating power should not fluctuatemore than ±1% within one minute.The heater power display is accessed in

Page 27

The temperature stability of the well and response time depend on the width ofthe proportional band. If the band is too wide the well temperature will

Page 28 - Temperature Set-point

7.6 Controller ConfigurationThe controller has a number of configuration and operating options and calibra-tion parameters which are programmable via

Page 29 - 7.3 Scan

7.6.1.2 ALPHAThis probe parameter refers to the average sensitivity of the probe between 0and 100°C. The value of this parameter is set at the factory

Page 30 - 7.4 Temperature Display Hold

4800 bNew baud ratePress “SET” to set the baud rate to the new value or “EXIT” to abort the opera-tion and skip to the next parameter in the menu.7.8.

Page 31 - 7.5 Secondary Menu

7.8.1.2 LinefeedThe final parameter in the serial interface menu is the linefeed mode. This pa-rameter enables (on) or disables (off) transmission of

Page 32 - 7.5.2 Proportional Band

8 Digital Communication InterfaceThe dry-well calibrator is capable of communicating with and being controlledby other equipment through the digital s

Page 33

rial interface parameters menu are the BAUD rate, the sample rate, the duplexmode, and the linefeed parameter.8.1.2.1 Baud RateThe baud rate is the fi

Page 34 - 7.6 Controller Configuration

7.2 Temperature Set-point . . . . . . . . . . . . . . . . . . . . . . . . 217.2.1 Programmable Set-points . . . . . . .

Page 35 - 7.7 Operating Parameters

face commands are discussed in Section. All commands are ASCII characterstrings terminated with a carriage-return character (CR, ASCII 13).8.2 Interfa

Page 36 - Serial Interface Parameters

9140 Dry-well CalibratorUser’s Guide36Command DescriptionCommandFormatCommandExample ReturnedReturnedExampleAcceptableValuesDisplay TemperatureRead cu

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378 Digital Communication InterfaceInterface CommandsCommand DescriptionCommandFormatCommandExample ReturnedReturnedExampleAcceptableValuesSet serial

Page 38 - 8.1 Serial Communications

9 Test Probe CalibrationFor optimum accuracy and stability, allow the calibrator to warm up for 10minutes after power-up and then allow adequate stabi

Page 39 - 8.1.3 Serial Operation

2. Place the probe to be calibrated, the unit under test (UUT), in anotherwell.3. With the reference inserted into one well and the probe under test i

Page 40 - 8.2 Interface Commands

WARNING: DO NOT remove inserts when heating or when the unit ishot.9.2.3 Stabilization and AccuracyThe stabilization time of the dry-well calibrator w

Page 41

timate stability will be achieved 10 to 20 minutes after reaching the settemperature.Inserting a cold probe into a well will require another period of

Page 42 - Interface Commands

10 Calibration ProcedureSometimes the user may want to calibrate the dry-well to improve the tempera-ture set-point accuracy. Calibration is done by a

Page 43 - 9 Test Probe Calibration

CTTTT=⎡⎣⎢⎤⎦⎥−⎡⎣⎢⎤⎦⎥−⎡⎣⎢⎤⎦⎥−⎡⎣⎢⎤⎦33221001100 1001100⎥DTTTT=⎡⎣⎢⎤⎦⎥−⎡⎣⎢⎤⎦⎥−⎡⎣⎢⎤⎦⎥−⎡⎣⎢⎤⎦22111001100 1001100⎥ERR=−32FRR=−21deltaAF BEDE CF=−−T1-3- Measured

Page 44 - 9.2 Dry-well Characteristics

b. Press SET then use the UP or DOWN keys until the correct numericalsetting is displayed. Press SET to accept the new value.c. Repeat step b. for ALP

Page 45 - Figure 8 Typical Cooling Rate

10 Calibration Procedure . . . . . . . . . . . . . . . . . . . . . . 4310.1 Calibration Points . . . . . . . . . . . .

Page 46

11 Maintenance•The calibration instrument has been designed with the utmost care. Easeof operation and simplicity of maintenance have been a central t

Page 47 - 10 Calibration Procedure

12 TroubleshootingIf problems arise while operating the 9140, this section provides some sugges-tions that may help you solve the problem. A wiring di

Page 48 - & ALPHA:

Problem Possible Causes and SolutionsThe display showsan error codeController problem. The error messages signify the following problems with thecontr

Page 49 - Calibration Procedure

ivFiguresFigure 1 9140 Back Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13Figure 2 9140 Front Panel .

Page 50 - 11 Maintenance

vTablesTable 1 International Electrical Symbols . . . . . . . . . . . . . . . . . . . . . 1Table 2 9140 controller communications

Page 51 - 12 Troubleshooting

1 Before You Start1.1 Symbols UsedTable 1 lists the symbols used on the instrument or in this manual and themeaning of each symbol.Symbol DescriptionA

Page 52 - 12.2 CE Comments

Symbol DescriptionCanadian Standards AssociationOVERVOLTAGE (Installation) CATEGORY II, Pollution Degree 2 per IEC1010-1 re-fers to the level of Impul

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