Cal Thermocouples - Fluke 725Ex Calibration Manual

725Ex
Calibration Manual

Cal Thermocouples

Connect the UUT as shown in Figure 19.
From the Calibration Menu, enter the cal step for Cal Thermocouples. The PC displays:
Set the Fluke 5520A to output 0.00 degrees C for a type-J thermocouple using the ITS-90
standard, then press the space bar on the PC. After a short while, the PC displays the
following calibration constant and new prompt:
Press the space bar to return to the Calibration Menu.
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Figure 19. Thermocouples Calibration Connections
Connect accurate T/C source : TYPE J thermocouple
Simulate 0.0 degrees C
- press space bar to continue
CJC Temp Read = 27.359071
Type 2
CJC mV = 1.400393
mV Read = -1.260579
CJC = 0.139814, (cjc - type_j) =
- press space bar to continue
2.736758
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