Manual

59
Advanced Functions
Due to this automatic defrosting, there is a minor brief increase in the chamber temperature
at regular intervals. If you would like to further reduce this detraction in performance, you can
decrease the defrosting frequency, e.g. to every 24 hours.
In this case, please observe if there is a permanent drop in the cooling performance or a
strong fluctuation of the actual value, which may be an indication that the cooling unit is icing
over. If this is the case, please set the automatic defrosting system one level higher.
If humidity/room temperature are particularly high, it is possible that the factory setting
for defrosting, 12 hours, is not sufficient. If this is the case, you should set a more frequent
defrosting interval, e.g. every 6 hours.
Automatic defrosting is disabled with the parameter
OFF
. When operating at low tempera-
tures, this causes the cooling unit to ice over over time. Regular defrosting needs to be carried
out in order to prevent damage to the cooling system.
7.7
User ID card (optionally available as an accessory)
The device number of the appliance and a
unique user number are stored in
encrypted form on the
user ID card (
Fig.
27
). The
user ID card therefore works
only in the appliance with the
corresponding serial number.
To use it, insert the card into the chip
card reader (see page
11
) on the
appliance control panel.
If the
user ID card has been inserted, the
additional menu item
ID-LOCK
appears
in the SETUP menu. If this setting is
changed to
ON
, the appliance is locked
against all adjustments once the chip
card is removed.
Locking with the
user ID card is displayed with the lit up icon
on the control
panel (see also page
28
).
Every login process with the
user ID card is logged in the internal flash memory of the
controller.
7.8
Calibration
7.8.1
Temperature calibration
The cooled incubator can be calibrated customer-specifically using three calibration
temperatures of your choice:
►
CAL.1
Temperature calibration at low temperature (e.g. 5 °C)
►
CAL.2
Temperature calibration at medium temperature (e.g. 25 °C)
►
CAL.3
Temperature calibration at high temperature (e.g. 50 °C)
access
authority
card
Name:
ID:
_____________________
_____________________
Fig. 27
User ID Card