Testing The Safety Features - Thermo Scientific Premium PC 200 Manual

Section 5 Preventive Maintenance
Testing the Safety
The safety features for high temperature protection and low liquid level
protection must be checked at regular intervals. The frequency depends on
Features
the unit's designated application and the heat transfer fluid used.
High temperature protection
Set a cut-off temperature that is lower than the desired setpoint
temperature.
Switch on the circulator and ensure the unit shuts down at the set cut-off
temperature.
If the unit does not shut down have the unit checked by a qualified
technician.
Low liquid level protection
With the unit on, slowly drain the bath fluid (use a drainage tap if
necessary) and ensure the unit shuts down.
If not, have the unit checked by a qualified technician.
5-2 Thermo Scientific