5
ROUTINE MAINTENANCE
Sensor Calibration: Type T, Type K Thermocouples (DUT Mode)
5-26 TP04300 Series Interface & Applications Manual
To calibrate a the sensor:
External Sensor
Method
(Type T, Type K)
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Step Action
1 Run system for half an hour at Ambient to stabilize components at normal
operating temperatures.
2 Toggle Head into Up position so System is not supplying main air flow
controlled to a setpoint (other than "Trickle" air flow).
NOTE: 4300B Systems should have the “Head: Lock” on. The “Head: Lock”
can be toggled on/off in the Utilities Screen.
3 Unplug any external Type T or K sensor from the port on the rear panel I/O.
Plug the Calibrator output plug into the appropriate rear panel socket, taking
care to observe plug pin polarity.
4 Press the Utilities Screen tab, then press the "Sensor Calibration" button to
display Calibration Main Screen, then press "T-Type” or “K-Type” to display
the Calibration Screen.
5 Set Calibrator output to the desired Low Calibration point (-60.0 °C), then press
"Next" to display Calibrate Low Temperature Screen. Allow graph plot to
stabilize at low temperature.
6 Set Calibrator output to desired high Calibration point (+200.0 °C), then press
"Next" to display Calibrate High Temperature Screen. Allow graph plot to
stabilize at high temperature.
7 Press "Next" to display Calibration Done Screen, then press "Done" to return to
Utilities Screen.
8 Unplug the Calibrator output plug from the rear socket, and replug the external
sensor into the rear I/O socket, taking care to observe plug pin polarity.
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