JULABO EH-39 Open Bath Circulator - Manual (Page 25)

EH
25
6.7. Safety installations according to IEC 61010-2-010
Check the safety installations at least twice a year! See page 12 .
6.7.1. Excess temperature protection
Warning:
The excess temperature protection should be set at least 25 °C below the fire
point of the bath fluid used.
In the event of wrong setting there is a fire hazard!
We disclaim all liability for damage caused by wrong settings!
This safety installation is independent of the control circuit. When the
temperature of the bath fluid has reached the safety temperature, a
complete shutdown of the heater and pump is effected.
The alarm is indicated by optical and audible signals (continuous
tone) and on the LED-DISPLAY appears the error message "Error
14".
Setting range: 0 °C to 170 °C
 Using a screwdriver turn the setting screw to the desired value.
Recommendation:
Set the excess temperature protector at 5 to 10 °C above the
working temperature setpoint.
6.7.2. Low liquid level protection
This safety installation is independent of the control circuit.
If the low liquid level protection device is triggered, a complete
shutdown of the heater and circulating pump is effected.
The alarm is indicated by optical and audible signals (continuous
tone) and on the LED-DISPLAY appears the error message "Error
01".

Turn off the unit with the mains switch, refill bath fluid and turn
the unit on again!
Warning:
For refill always use the same bath fluid type that is already in the bath.
Bath oils must not contain any water contaminants! Explosion hazard at higher
temperatures!
Recommendation
:
Refill bath oils only at a bath temperature below 70 °C!