Safety
15
4.6
Safety function
Various technical safety functions ensure safe operation. If a safety function is
triggered, the operator is alerted with a message on the display and an acoustic
signal.
Low liquid level protection
A level switch recognizes when the bath fluid fill level in the bath tank is too
low. The device has a two-stage warming system to prevent overheating of the
heater or dry running of the pump.
• The low liquid level warning is triggered when the liquid level in the bath
tank is about half the full level. A yellow warning message appears on the
display. The bath fluid should be topped up.
• The low liquid level alarm is triggered when the float reaches its lower limit
stop. The device switches off the pump and heater. A continuous signal
tone sounds. A red alarm message appears on the display. A restart is
required.
Adjustable high temperature cut-off
The high temperature cut-off prevents overheating of the heater. The protective
temperature is set on the safety potentiometer.
• If the working temperature sensor reaches the set protective temperature,
then the display shows “Error E14” and the message “The set protective
temperature was exceeded.” The pump and heater are switched off. A
restart is required.
Overheating protection
The overheating protection prevents overheating of the heater.
• The protective mechanism is triggered when the device recognizes a
temperature difference of more than 20 K between the working
temperature sensor and the safety temperature sensor. The display shows
the message “Local overheating on the heater.” A restart is required.
Produc t des cripti on
