JULABO F34-ED Refrigerated / Heating Circulator - Manual (Page 22)

Operating procedures
22
6.4. Setting the temperatures
Factory setting: 25 °C

Setting can be carried out in the start/stop condition.
1. Press one of the keys for a short moment. The
setpoint value instead of the actual value is indicated on the
display for about 8 seconds. The value can now be changed.
2. Change value:
Press to set a higher value.
Press to set a lower value.
Keep the keys depressed for the value to change fast.
3. Press the key to store the value.
6.5. Safety installations according to IEC 61010-2-010
Check the safety installations at least twice a year (see page 12)!
6.5.1. Excess temperature protection
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
"Erro 14".
Setting range: 20 °C to 120 °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.
6.5.2. 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!