JULABO FP89-ME Ultra-Low Refrigerated Circulators - Manual (Page 22)

Operating procedures
22
Entry of ice flakes/water into the bath oil
At working temperatures below 0 °C, humidity from the atmosphere may
enter the bath oil through condensation. This may subsequently result in
the formation of ice flakes, impairing the operation of the pump.
For this reason, the bottom of the bath tank provides a groove sloping
down towards the drain tap. Thus, water having entered the bath oil
gathers in the groove immediately behind the drain tap.
 Shut down the refrigerated circulator at a bath temperature of +10 °C.
 Wait for a while and open the drain tap to drain the water.
6. Operating procedures
6.1. Power connection
Caution:
 Only connect the unit to a power socket with earthing contact (PE – protective
earth)!
 The power supply plug serves as safe disconnecting device from the line and must
be always easily accessible.
 Never operate equipment with damaged mains power cables.
 Regularly check the mains power cables for material defects (e.g. for cracks).
 We disclaim all liability for damage caused by incorrect line voltages!
Check to make sure that the line voltage matches the supply voltage
specified on the identification plate. Deviations of ±10 % are permissible.
Make sure that the line voltage and frequency match the supply
voltage and frequency specified on the type plate.
 Connect the control cable (15a) to the  sockets (15, 15b).
Units with built-in mains outlet (21)
 Connect the circulator with mains power cable (20a) to the
mains outlet (21).
 Connect the refrigerated circulator with mains power cable
(20b) to the mains socket.
Units without built-in mains outlet (21)
 Connect the circulator with mains power cable (20a) to the
mains socket.
 Connect the refrigerating circulator with mains power cable
(20b) to the mains socket.