9105 / 9107Dry-well CalibratorUser’s GuideRev. 2A2801
9105/9107 31 Before You StartSet Down Up Exit9105123WARNING:THIS AREA IS HOTFigure 1 Top View
•DO NOT REMOVE INSERTS AT HIGH TEMPERATURES. Insertswill be the same temperature as the display temperature. Use extreme carewhen removing hot inserts
•Components and heater lifetime can be shortened by continuous hightemperature operation.•Most probes have handle temperature limits. Be sure that the
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2 IntroductionThe Hart Scientific Model 9105/9107 dry-well calibrator may be used as a por-table instrument for calibration of temperature probes. The
3 Specifications and Environmental Conditions3.1 SpecificationsThe following table lists the specifications for this instrument. Accuracy speci-ficati
•temperature range 5 - 50°C (41 - 122°F)•ambient relative humidity 15 - 50%•pressure - 75kPa - 106kPa•mains voltage within ± 10% of nominal•vibrations
4 Safety Guidelines•Operate the instrument in room temperatures between 5–50°C(41–122°F). Allow sufficient air circulation by leaving at least 6 inche
the instrument. Wait until the power has stabilized before re-energizingthe instrument.12 Hart Scientific4 Safety Guidelines
5 Quick Start5.1 UnpackingUnpack the dry-well carefully and inspect it for any damage that may have oc-curred during shipment. If there is shipping da
Rev.2A2801© Copyright,1991–2002Hart Scientific, Inc.799 E. Utah Valley DriveAmerican Fork, Utah 84003-9775Telephone: (801) 763-1600 • Fax: (801) 763-1
“POWER” switch. The dry-well will turn on and begin to heat to the previouslyprogrammed temperature set-point. The front panel LED display will indica
6 Parts and ControlsThe user should become familiar with the dry-well calibrator and its parts.6.1 Rear PanelSeeFigure2.Power Cord - At the rear of th
Power Entry Module (9107) - The power switch is located on the power entrymodule (PEM). The PEM also houses the fuses.The supply voltage for the uniti
UP–Usedtoincrementthedisplayedvalue.EXIT – Used to exit from a menu. When EXIT is pressed any changes made tothe displayed value will be ignored.Contr
Standard Insert SizesModel Number Size2168 Blank insert2169116¢¢insert217018¢¢insert2171532¢¢insert2172316¢¢insert217314¢¢insert2174516¢¢insert217538¢
insulator flush with the top of the cavity. The well insulator has a slot throughwhich a probe can be inserted.9105/9107 196 Parts and ControlsFigure
7 General Operation7.1 Calibrator Set-UpPlace the calibrator on a flat surface with at least 6 inches of free space aroundthe instrument. Overhead cle
7.3 Setting the TemperatureSection 8.3 explains in detail how to set the temperature set-point on the cali-brator using the front panel keys. The proc
8 Controller OperationThis chapter discusses in detail how to operate the dry-well temperature con-troller using the front control panel. Using the fr
24 Hart Scientific8 Controller OperationCalibrationMenuCTOAdjust CTOB0Adjust B0BGSCOAdjust BGAdjust SCOSET/EXITIEEE-488InterfaceMenuDeviceAddressAdj.
Table of Contents1 Before You Start ...11.1 Symbols Used ...11.2 Safety Information...
When the cut-out is active and the cut-out mode is set to manual (“reset”) thenthe display will flash “cut-out” until the user resets the cut-out. To
To change the set-point memory press “UP” or “DOWN”.3. -10.0New set-point memory 3, –10.0°CPress “SET” to accept the new selection and access the set
reaches the new set-point. With the scan disabled the dry-well will heat or coolat the maximum possible rate.8.4.1 Scan ControlThe scan is controlled
8.5.1 Hold Temperature DisplayWhen the hold feature is enabled you can easily switch the display between thenormal temperature display and the hold te
HoLd=OFF Hold mode set to offTo change the mode press “UP” or “DOWN”.HoLd=Aut Automatic modeHoLd=n.c. Normally closed modeHoLd=n.o. Normally open mode
soak feature (described in detail in the next section) to test the switch. Measure-ments can be made by observing the display or, preferably, by colle
8.6 Ramp and Soak Program MenuThe ramp and soak program feature allows the user to program a number ofset-points and have the dry-well automatically c
Use the “UP” or “DOWN” buttons to change the number from 2 to 8.Pn=3New number of program set-pointsPress “SET” to continue. Pressing “EXIT” will caus
Press “SET” to continue.SSave new setting8.6.4 Program Function ModeThe next parameter is the program function or cycle mode. There are four pos-sible
SActivate new command.8.7 Secondary MenuFunctions which are used less often are accessed within the secondary menu.The secondary menu is accessed by p
8 Controller Operation...238.1 Well Temperature...238.2 Reset Cut-out...
band the cooling is 100%. Thus as the temperature rises the heater power is re-duced, which consequently tends to lower the temperature back down. In
Pb= 2.01CProportional band settingTo change the proportional band press “UP” or “DOWN”.Pb=3.50CNew proportional band settingTo accept the new setting
CO= 80CCut-out set-pointTo change the cut-out set-point press “UP” or “DOWN”.CO= 70CNew cut-out set-pointTo accept the new cut-out set-point press “
8.11.1.2 ALPHAThis probe parameter refers to the average sensitivity of the probe between 0and 100°C. The value of this parameter is set at the factor
The parameter is indicated by,CtorStCut-out reset mode parameterPress “SET” to access the parameter setting. Normally the cut-out is set for au-tomati
Press “SET” to set the BAUD rate to the new value or “EXIT” to abort the op-eration and skip to the next parameter in the menu.8.11.3.2 Sample PeriodT
LFSerial linefeed parameterPress “SET” to access the linefeed parameter.LF= OnCurrent linefeed settingThe mode may be changed using “UP” or “DOWN” and
8.11.5 Calibration ParametersThe user has access to a number of the instrument calibration constants namelyCTO, B0, and BG. These values are set at th
9 Digital Communication InterfaceThe dry-well calibrator is capable of communicating with and being controlledby other equipment through the digital i
“EXIT” while pressing “SET” and release to enter the secondary menu. Press“SET” repeatedly until the display reads “ProbE”. This is the menu selection
8.11.5.3SCO ...429 Digital Communication Interface ...439.1 Serial Communications ...
9.1.3 Serial OperationOnce the cable has been attached and the interface set up properly the control-ler will immediately begin transmitting temperatu
9.3 Interface CommandsThe various commands for accessing the calibrator functions via the digital in-terfaces are listed in this section (see Table 2
9105/9107 479 Digital Communication InterfaceCommand DescriptionCommandFormatCommandExample ReturnedReturnedExampleAcceptableValuesDisplay Temperature
48 Hart Scientific9 Digital Communication InterfaceCommand DescriptionCommandFormatCommandExample ReturnedReturnedExampleAcceptableValuesSet program f
9105/9107 499 Digital Communication InterfaceCommand DescriptionCommandFormatCommandExample ReturnedReturnedExampleAcceptableValuesThese commands are
10 Test Probe CalibrationFor optimum accuracy and stability, allow the calibrator to warm up for 10minutes after power-up and then allow adequate stab
type, length, diameter, and material. Probes should be inserted to the samedepth in the well.The following procedure can be used to calibrate a probe
10.2.1 Vertical GradientThere is a temperature gradient vertically in the test well. The heater has beenapplied to the block in such a way as to compe
11 Calibration Procedure11.1 Calibration ProcedureCalibration of this instrument should be performed at regularly scheduled inter-vals by qualified au
to 1. For example, if the block temperature is high by 0.1°C at 0°C thendecrease R0 by 0.04.3. Set the set-point to 100°C and allow adequate time for
ivFiguresFigure 1 Top View...3Figure 2 Rear Panel ...15Figure 3 Front
12 Maintenance•The calibration instrument has been designed with the utmost care. Easeof operation and simplicity of maintenance have been a central t
•The over-temperature cut-out should be checked every 6 months to seethat it is working properly. In order to check the user selected cut-out, fol-low
13 Troubleshooting13.1 TroubleshootingIn the event that the dry-well appears to function abnormally, this sectionmay help to find and solve the proble
Problem Causes and SolutionsTemperature readout is not theactual temperature of the wellWith the unit stable, slowly rotate the unit. If no change occ
13.3 Wiring Diagrams9105/9107 6113 TroubleshootingCHASSISEARTHWHT/ORG/BLKWHT/YEL/BLKWHT/ORG/BLKWHT/BLK/YELGRNGRY/WHTBLK/YEL/WHTBLU/WHTBLK/GRY/WHTGRNBL
62 Hart Scientific13 Troubleshooting9107 WIRINGFGLCN1N531LCN1CN3NFG531BLK 28 AWGRED 28 AWG26 PIN RIBBONBLK 28 AWGRED 28 AWG321-211-TC543212132-2121+OU
vTablesTable 1 International Electrical Symbols ...1Table 2 Communications Commands ...47Ta
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
Symbol DescriptionCanadian Standards AssociationOVERVOLTAGE (Installation) CATEGORY II, Pollution Degree 2 per IEC1010-1 refers to thelevel of Impulse
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