Testing The Overtemperature Function - Ametek JOFRA RTC-156 B Reference Manual

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Testing the overtemperature function

It is recommended to test the overtemperature function every 12
months. The test is carried out as follows:
1. In the "Calibrator Setup" menu, set the "Max. SET temperature" to
the maximum temperature of the calibrator.
2. Press "Menu" and set the SET temperature to the maximum
value.
3. Let the calibrator heat to and stabilize at the maximum
temperature.
4. Set the "Max. SET temperature" of the calibrator to 50°C below the
maximum temperature of the calibrator.
If the Read temperature now starts decreasing, the
overtemperature function is working properly.
5. Set the "Max. SET temperature" back to the maximum temperature
of the calibrator and turn off/on the calibrator.
6. When powered up again, the calibrator will operate normally.
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