JULABO FP89-ME Ultra-Low Refrigerated Circulators - Manual (Page 23)

ME
23
6.2. Switching on / Start - Stop
6.2.1. Switching on the circulator
Switching on:
 Turn on the mains power switch (1).

The unit performs a self-test.
Then the software version (example: V 1.xx) appears. The display
„OFF“ or „R OFF“ indicates the unit is ready to operate.

The circulator enters the operating mode activated before switching
the circulator off:
keypad control mode (manual operation)
or
remote control mode (operation via personal computer).
Start:
 Press
key.
The actual bath temperature is displayed on the VFD COMFORT-
DISPLAY. The circulating pump starts with a slight delay.
Stop:
 Press
key.
or
Keep key pressed.
The VFD COMFORT-DISPLAY indicates the message "OFF".
6.2.2. Switching on the Cooling Machine
 Switch on the cooling machine using the switch (1b) .
Control of the F70, F81 cooling machines:
With the mains switch (1b) turned on, the circulator automatically
switches the cooling machine off and on.

It is switched off if:
- the current working temperature is increased by > 30 °C (cooling is
not required).
- the heater operates at full power (> 800 W) for longer than
5 minutes.

It is switched on if:
- cooling is necessary to maintain the bath temperature.
- After switch-off, the cooling machine automatically switches on
only after a delay of 5 minutes to protect the cooling compressor.

To save energy, turn off the cooling machine with the mains switch
(1b) whenever cooling is not required.