Testing The Safety Features - Thermo Scientific STANDARD Series Manual

Section 6 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.
Acrylic unit's maximum high temperature setting should be limited
CAUTION
to the temperature indicated on the label on the front of the bath,
65°C or 80°C.

Low liquid level protection (SC 150 and SC 150L units)
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 qualified a technician.
6-2 Thermo Scientific