JULABO CF40 Cryo-Compact Circulators User Manual
Page 25

Cryo-Compact Circulator
25
7. Safety
installations
Check the safety installations at least twice a year! (See page 13)
7.1. Excess
temperature protection
Warning:
The excess temperature protection >SafeTemp< 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 incorreect 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". 
°C
140
100
180
220
0
60
20
Setting range:
0 °C to 220 °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. 
7.2.
Low 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 compressor 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, add bath fluid, and turn 
the unit on again! 
Caution:
When adding bath fluid, always use the same bath fluid type that is already in 
the bath. 
Bath oils must not contain any water and should be pre-heated approximately 
to the current bath temperature! 
Explosion hazard at high temperatures! 
