Copyright 2022 Baker Hughes Company.
38 | PTC Temperature Calibrators–English
10. Troubleshooting
Refer to Table
4 for trouble shooting guide.
If you are unable to remedy the problem, immediately disconnect the calibrator to protect against
unintended operation. Return the calibrator to Druck for repair.
11. Maintenance, Cleaning and Transportation
Before maintenance, cleaning and transportation, ensure:
1. The calibrator has cooled sufficiently. See Section
2. The calibrator has been switched off and disconnected from the mains.
11.1 Maintenance
The calibrator is maintenance-free and cannot be repaired by the user. In case of a defect, the
calibrator must be returned to Druck, or approved service representative for repair.
For safe operation of the calibrator, the following checks must be carried out at regular intervals.
11.1.1 Before Use
1. Check the calibrator for damage.
2. For micro bath calibrators, check the filled height of the calibration liquid. See
PREVENT FAILURE
Never open the calibrator. Critical parts or
components may be damaged. Return the calibrator to Druck.
Table
4: Troubleshooting Guide
Problem
Possible Cause
Remedy
Calibrator touchscreen is not
responsive to user input.
The calibrator is in an undefined state.
Turn off the calibrator, wait a
few minutes, then restart.
Sensor break.
External reference sensor not properly
connected.
Check connection.
Cable break or short circuit.
Contact Druck Services.
Fan not running.
The fan is defective or blocked.
The thermal protection fuse has tripped.
Set point temperature is not
achieved.
Solid state relay is defective.
The heating / cooling element is defective.
No display.
Controller is defective.
Calibrator cannot be switched
on.
Mains not available or fuses blown.
Check the mains supply and
the fuses.
Residual current circuit breaker has tripped
due to moisture in the heating elements.
Contact Druck Services.
PREVENT FAILURE
Never open the calibrator. Critical parts or
components may be damaged. Return the calibrator to Druck.
