Memmert ICH C (with CO2 control) Climate chambers - Manual (Page 49)

D30393 | Date 10/2014 49
Menu mode
7.3.4 Timer mode
Here, you can choose whether the digital backwards counter
with target time setting (see page 29) should run setpoint-
dependent or not. This determines whether the timer should not
start until a tolerance band of ±3 K around the set temperature is
reached (Fig. 26, B) or if it should start right after activation (A).
t
Timer
t
Timer
A
B
°C/°F
t
6 K
Fig. 26 Timer Mode
A Timer independent of setpoint: Timer starts right after activation
Fig. 26 Fig. 26
B Timer setpoint-dependent: Timer does not start until tolerance band is reached
A Timer independent of setpoint: Timer starts right after activation A Timer independent of setpoint: Timer starts right after activation
7.3.5 Type of the slide-in unit (Grid or Shelf)
Here, you have to set the type of the slide-in unit (grid or shelf)
used. The selection Shelf enables you to adjust the control
function to the different air flow characteristics in the interior
when using optional sliding shelves instead of the grids that are
part of the standard delivery.
7.3.6 Automatic defrosting system (Defrost)
The integrated automatic defrosting system for the cooling
unit ensures perfect operation of the appliance at low tempera-
tures and in permanent operation. The defrosting interval can be
set in steps of 6 hours, between 6 and 48 hours. The setting Off
deactivates automatic defrosting.
Due to long-term operation with a working temperature below
+15 °C or due to a damp chamber load and/or the door opening frequently, ice can form in
the interior over time. Heavy icing may impair the function of the appliance and could dam-
age the cooling system. In this case, the working chamber should be defrosted. This can be
achieved by short heating of the appliance (to 30-40 °C) or by switching it off for a longer
period of time, e.g. over night. The resulting melting water can best be collected with a cloth
at the front edge of the working chamber. Afterwards, the smooth surface of the interior can
easily be cleaned.
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 impairment in performance, you
can shorten 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.
SETUP
Unit
IP address 255.145.136.225
Subnet mask 255.255.0.0
Alarm temp
°C F
TWW TWB
Timer mode
Slide-in unit Grid Shelf
SETUP
Unit
IP adress 255.145.136.225
Subnet mask 255.255.0.0
°C °F
Timer mode
Alarm temp TWW TWB
Slide-in unit Grid Shelf
SETUP
Defrost 18h
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