2
* Viewing setpoint.
By pushing the
SET
key the setpoint appears in the display. The led ‘set’ starts blinking. A few seconds
after releasing the
SET
key the setpoint disappears and the measured product temperature is shown
in the display.
* Changing setpoint.
Push the
SET
key and the setpoint appears in the display. Release the
SET
key. Now push the
SET
key again and together with the
UP
or
DOWN
keys the setpoint can be changed. A few seconds afer
releasing the keys the measured product temperature is shown again in the display.
* Manual starting/stopping of defrost.
The defrost cycle is automatic started and stopped. These defrost settings thru internal parameters.
At active defrost the led 'defrost' is on.
Stop defrost:
If there is a defrost cycle, the defrost can by manually stopped by pushing the
UP
key and than the
SET
key, while the
UP
key is hold.
Start defrost:
If there is no defrost cycle, the defrost can be started manually by pushing the
UP
key and than the
SET
key, while the
UP
key is hold.
* Setting internal parameters.
Next to the adjustment of the setpoint, some internal settings are possible like differential, sensor-
offset, setpoint range and the defrost function.
By pushing the
DOWN
key more than 10 seconds, you enter the 'internal programming menu'. In the
left display the upper and lower segment are blinking. Over the
UP
and
DOWN
keys the required
parameter can be selected (see table for the parameters).
If the required parameter is selected, the value can be read-out by pushing the
SET
key. Pushing the
UP
and
DOWN
keys allows you to change the value of this parameter.
If after 20 seconds no key is pushed, the
ALFA(NET)-45
changes to it's normal operation mode.