Fluke Rev. 4 user manual Simulating Thermocouples

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701/702

Users Manual

Simulating Thermocouples

NOTE

Refer to “Measuring Temperature” earlier in the manual for a table of data relating to thermocouple types supported by the calibrator.

Connect the calibrator TC connector to the instrument under test with thermocouple wireand theappropriate thermocouple mini-connector (polarized thermocouple plug with flat, in-line blades spaced 7.9 mm (0.312 in) center to center). One pin is wider than the other. Do not try to force a miniplug in the wrong polarization. Figure 18 shows this connection. Proceed as follows to simulate a thermocouple:

1.Attach the thermocouple leads to the appropriate TC miniplug, then to the TC jack as Figure 12 shows.

2.If necessary, press Mfor SOURCE mode.

3.Press tfor the display that prompts you to enter thermocouple type.

4.Press the uor dkey followed by eto select the desired thermocouple type.

5.Enter the temperature you want to simulate as prompted by the display and press e.

NOTE

If you use copper wire instead of thermocouple wire, the reference junction is no longer inside the calibrator. The reference junction is moved to the instrument (transmitter, indicator, controller, etc.) input terminals. You must measure this external reference temperature accurately and enter it into the calibrator. Do this by pressing sand setting Ref. Junc. Compensat and Ref. Junc. Temp. After you enter the external reference temperature, the calibrator corrects all voltages to compensate for this new reference junction temperature.

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Contents 701/702 Page Table of Contents 701/702 Iii 100 List of Tables 701/702 List of Figures 103 Documenting Process Calibrator Introduction701/702 Function MeasureSource Standard Equipment Standard Equipment Users ManualMail-in Card Documenting Process Calibrator Accessories PMLink Software Safety Information CATSafety Information Feature Getting Acquainted with YourCalibrator Input and Output JacksGetting Acquainted with Your Calibrator Keys KeysKey Functions Key Numeric keypad Setting Up the Calibrator Using the Strap and BailDisplay Elements of a Typical Display Installing the Strap and Using the Bail Charging the Battery Battery Life Removing the Battery and Using the ChargerOperating Modes Backlight OFFBacklight on Automatically Saving Battery Life Using the Optional Battery EliminatorAdjusting the Display Contrast Setting Up the Date and Time DisplaySelecting the Display Language Using the Backlight Personalizing the Calibrator Using Measure Mode Measurement RangesMeasuring Electrical Parameters Electrical Measurement Connections Testing Continuity Measuring PressureDocumenting Process Calibrator Connections for Measuring Pressure Measuring Temperature Using ThermocouplesType Positive Lead MaterialPositive Lead Color ANSI* IEC Negative Lead MaterialMeasuring Temperature with a Thermocouple RTD Type ICE Point R0 Material Range CDocumenting Process Calibrator Wrong Measuring Temperature with an RTD Measurements in Percent of Scale Damping Your MeasurementsUsing Source Mode Sourcing Electrical ParametersElectrical Sourcing Connections Simulating a 4 to 20 mA Transmitter Connections for Simulating a 4 to 20 mA Transmitter Providing Loop Power Connections for Supplying Loop Power Sourcing Pressure 701/702 Connections for Sourcing Pressure Simulating Thermocouples Connections for Simulating a Thermocouple Simulating RTDs PS S +PS Z +IN Sourcing in Percent of Scale Stepping and Ramping the Output ValueStepping the Output Ramping the Output 701/702 Documenting Process Calibrator Checking a Relay Output Trip Alarm Simultaneous Measure/Source Measure Function Source Function 2W RTDSource Function Calibrating a Process Instrument Generating As Found Test DataCalibrating a Process Instrument 701/702 Documenting Process Calibrator Adjusting the Transmitter As Left Test Run Memory Operations Saving ResultsReviewing Memory Memory OperationsData Logging Model 702 Only Reading Rate MAX. Number Observing Min and Max Measurements Viewing the Task List Model 702 OnlyQuick Guide to Applications Clearing MemoryCalibrating a Chart Recorder Monitoring AC Line Voltage and Frequency Calibrating a Current-to-Pressure I/P Transducer Measuring the Output Current of a Transmitter Measuring a Precision Resistor Checking a Switch Calibrating a Pressure-to-Current P/I Transducer Calibrating a mV to Current Transmitter Checking a Vortex Shedding Flowmeter Maintenance Replacing the Battery PackInternal Lithium Backup Battery Cleaning the CalibratorService Center Calibration or Repair Replacement PartsCalibration Data Maintenance Specifications Resolution DC Voltage MeasurementRange Model Reading +% of Full Scale YearAC Voltage Measurement Frequency RangeReading + Number of Counts Year Range Resolution Model Reading +% of Full Scale Range Resolution ModelDC Current Measurement Resistance MeasurementContinuity Testing Frequency MeasurementRange Resolutions DC Voltage OutputModel Output +% of Full Scale Output + % of Full Scale DC Current Output Output +% of Full Scale YearRanges Resolution Model Output + Ohms Year Resistance SourcingFrequency Sourcing Frequency RangesTemperature, Thermocouples Types CMeasure Degrees C Year Source Degrees C Temperture, Thermocouples Maximum Input Voltage 30 Temperature, Resistance Temperature Detectors Measure Degrees C Source Degrees C YearLoop Power Supply SettingTop and Bottom Limits of Ranges with Auto Range On RANGE, Measure V CC RANGE, Current SourceRANGE, Frequency Measure General Specifications SafetyOperating Environment Specification 104 Index 701/702 Index