TP 37 / TP 3M
4.4 Switching On, Cooling Down and Switching Off
NOTE AFTER TRANSPORT OR STORAGE
After transport, storage or long periods of non-use, moisture can seep into the
heating elements (magnesium oxide).
Heat the calibrator to 120 °C for at least 15 minutes to dry the heating ele-
ments ( p. 55).
During this process, the calibrator has not yet reached the required insulation
voltage for protection class I.
Switching on
Switch on the main switch.
Cooling down
To avoid injuries or material damage, it is necessary to bring the calibrator into a defined op-
erational state:
Set a test point in the safe temperature range (≥ 10°C and ≤ 35 °C) ( p. 55)
or
Select "Safe temperature range" as the behaviour at the end of the test task ( p. 53).
MAINS FAILURE OR SEPARATION FROM MAINS
In the event of a power failure, switching off with the main switch or after remov-
ing the mains connection ("EMERGENCY STOP"), the built-in fan no longer deliv-
ers cooling air.
Sufficient thermal decoupling between the metal block, tank and case is neverthe-
less guaranteed.
Switching off
IMPORTANT
Before switching off, the calibrator must have reached a safe temperature.
Switching off outside the safe temperature range may damage the calibrator.
Do not switch off the calibrator until the safe temperature range has been
reached.
Tap the
symbol in the bottom bar.
If the calibrator has reached a safe temperature, tap "Yes".
The message "You can shut down the device." appears.
Switch off the main switch.
Remove and clean the calibration inserts ( p. 60).
Technical changes reserved
Commissioning and Operation
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