9150 PortableFurnaceUser’ s GuideRev. 5B1601Hart Scientific
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2 IntroductionThe Hart Scientific 9150 thermocouple furnace can be used for calibrating ther-mocouple and RTD temperature probes. Calibrations may be
3 Specifications and EnvironmentalConditions3.1 SpecificationsTemperature Range 150–1200°C (302–2192°F)Display Resolution 0.1° to 999.9°, 1° above 100
3.3 WarrantyFluke Corporation, Hart Scientific Division (Hart) warrants this product to befree from defects in material and workmanship under normal u
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
5 Quick Start5.1 UnpackingUnpack the furnace carefully and inspect it for any damage that may have oc-curred during shipment. If there is shipping dam
5.4 Setting the TemperatureSection 8 explains in detail how to set the temperature set-point on the calibra-tor using the front panel keys. The proced
6 Parts and ControlsThe user should become familiar with the furnace back panel, front panel, andconstant temperature block assembly.6.1 Back PanelThe
Fan - The fan inside the calibrator runs continuously when the unit is being op-erated to provide cooling for the instrument. Slots at the top and sid
EXIT – Used to exit from a menu. When EXIT is pressed any changes made tothe displayed value are ignored.6.3 Constant Temperature Block AssemblyThe co
Rev. 5B1601Fluke Corporation, Hart Scientific Division799 E. Utah Valley Drive • American Fork, UT 84003-9775 • USAPhone: +1.801.763.1600 • Telefax: +
•Insert A Model 3150-2 (variety block): 1/2”, 1/4”, 3/8”, 3/16”, 1/8”, and1/16” holes•Insert B Model 3150-3 (comparison block): two each 3/8”, 1/4”,
7 General Operation7.1 Changing Display UnitsThe 9150 can display temperature in Celsius or Fahrenheit. The temperatureunits are shipped from the fact
8 Controller OperationThis section discusses in detail how to operate the furnace temperature control-ler using the front control panel. By using the
9150 Portable FurnaceUser’s Guide22Figure 4 Controller Operation Flowchart
200.0 C Well temperature in degrees CelsiusSAccess set-point memory1. 200. Set-point memory 1, 200.0°C currently usedTo change the set-point memory pr
Scale units currently selectedPress “UP” or “DOWN” to change the units.Un= F New units selectedPress “EXIT” to display the well temperature or press “
Press “SET” to accept the new scan rate and continue.SAccept scan rate8.4 Ramp and Soak ProgramThe ramp and soak program feature for the 9150 allows t
8.4.3 Program Set-PointsThe controller allows the user to adjust up to eight program points. These areaccessed by pressing “SET” after setting the num
it can be adjusted.00200 Program point 4 soak time set for 200 minutesPress “SET” to save the new soak-time value or “EXIT” to discard changesSAccept
Program modePress “SET” to adjust the program mode and the “UP” or “DOWN” buttons tochange the mode.Pf=4New modePress “SET” to continue or “EXIT” to c
Table of Contents1 Before You Start . . . . . . . . . . . . . . . . . . . . . . . . . . 11.1 Symbols Used . . . . . . .
”EXIT” simultaneously and release. The heater power is displayed as a percent-age of full power.962.4 Well temperatureS+EAccess heater power in second
troller cannot respond very well to changing conditions or noise in the system.If the proportional band is too narrow the temperature may swing back a
bration parameters. The groups are selected using the “UP” and “DOWN” keysandthenpressing“SET”.8.10 Operating ParametersThe operating parameters menu
1225 Flashes the current value and then displays the value foradjustment1225.0 Current Soft Cutout settingAdjust this parameter by using “UP”, “DOWN”,
8.11.1 BAUD RateThe BAUD rate is the first parameter in the menu. The BAUD rate setting de-termines the serial communications transmission rate.The BA
via the serial interface are immediately echoed or transmitted back to the deviceof origin. With half duplex the commands are executed but not echoed.
CAL Calibration parameters menuPress “SET” five times to enter the menu. The calibration parameters menucontains the parameters Hard Cutout, CT1, CE1,
9 Digital Communication InterfaceThe furnace is capable of communicatingwithandbeingcontrolledbyotherequipment through the digital serial interface.Wi
ary menu. Press “SET” repeatedly until the display reads “CAL”. Press “UP”until the serial interface menu is indicated with “SErIAL”. Finally press “S
temperature set-point and view or program the various parameters. The inter-face commands are discussed in Section 9.2. All commands are ASCII charac-
8.2.1 Programmable Set-points . . . . . . . . . . . . . . . . . . . . . . . . . . . . 218.2.2 Set-point Value . . . . .
9150 Portable FurnaceUser’s Guide40Command DescriptionCommandFormatCommandExample ReturnedReturnedExampleAcceptableValuesDisplay TemperatureRead curre
419 Digital Communication InterfaceInterface CommandsCommand DescriptionCommandFormatCommandExample ReturnedReturnedExampleAcceptableValuesStop progra
9150 Portable FurnaceUser’s Guide42Command DescriptionCommandFormatCommandExample ReturnedReturnedExampleAcceptableValuesThese commands are only used
10 Test Probe CalibrationFor optimum accuracy and stability, allow the calibrator to warm up for 10minutes after power-up and then allow adequate stab
1200°C takes 10 minutes to be within 0.5°C of its settled point and takes 15minutes to achieve maximum stability.Speeding up the calibration process c
11 Calibration ProcedureAt times the user may want to calibrate the unit to improve the temperatureset-point accuracy. Calibration is done by adjustin
ture, CEn is the old value for calibration error, and CEm is the new valuefor calibration error6. Enter the new CEm value in the calibration parameter
12 Maintenance•The calibration instrument has been designed with the utmost care. Easeof operation and simplicity of maintenance have been a central t
13 TroubleshootingThis section contains information on troubleshooting, CE Comments, and awiring diagram.13.1 Troubleshooting Problems, Possible Cause
Problem Possible Causes and SolutionsThe display shows any ofthe following:err 1,err 2,err 3,err4,Err 5,Err 6,Err 7,orErr 8Controller problem. The err
10.2.1 Stabilization and Accuracy . . . . . . . . . . . . . . . . . . . . . . . . . . . 4311 Calibration Procedure . . .
1 Before You Start1.1 Symbols UsedTable 1 lists the International Electrical Symbols. Some or all of these symbolsmay be used on the instrument or in
Symbol DescriptionCanadian Standards AssociationOVERVOLTAGE (Installation) CATEGORY II, Pollution Degree 2 per IEC1010-1 re-fers to the level of Impul
DO NOT operate this unit without a properly grounded, properly polarizedpower cord.DO NOT connect this unit to a non-grounded, non-polarized outlet.HI
Allow for test probe expansion inside the well as the furnace heats.DO NOT use fluids to clean out the well.Never introduce foreign material into the
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