GENERAL
Incubator cabinets incorporate a proportional electronic
temperature controller.
Cavity temperature is maintained
by the electronic temperature
controller located on the commu-
nicator panel. Set control knob
pointer on desired cavity temper-
ature. (See photo at left.)
Cavity temperature may fluctu-
ate slightly with varying ambi-
ent temperature.
The photo below shows the rear view of the tempera-
ture control module. This module maintains cabinet
temperature by pulsing voltage to a heater located
under the evaporator coil. This module consists of a
solid state controller, solid state relay and a poten-
tiometer. When replacing the solid state relay, make
sure the polarity between the controller and the relay
coil are the same. When the cabinet has reached set
point temperature, the load light indicator on the con-
troller should be blinking on and off.
NOTE: If the cabinet temperature controller is set
below 0°C manual defrost will be necessary.
CAVITY TEMPERATURE CONTROL
Refrigerated Incubator
88 CAVITY TEMPERATURE CONTROL
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