Version No. 1-3 - 09.11.2022
Doc. No. 99750641B001
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14. Controller
Adjusting the control setpoint
The cooling set point can be adjusted between 0°C and 60°C. The setpoint is controlled by parameter St. The
default setting is 25°C.
To change the control setpoint:
Press the red Set button for 1 second until St appears on the display.
Press the Up/Down buttons to reach the desired value.
Press the Set button to save the new setting.
Adjusting the high and low temperature alarm setpoints
The high temperature alarm setpoint is controlled by parameter AH. The default setting is 55°C.
The low temperature alarm setpoint is controlled by parameter AL. The default setting is 0°C.
Adjusting parameters
Press and hold SET for 3-5 seconds until PS is displayed.
Release and press SET again briefly to display 0.
Press the UP arrow until you reach the value of 22. Then press SET. (This is the factory password to
access the protected parameters). Once the parameter list is accessed, PS is again displayed.
Press the UP or DOWN buttons to scroll through the various parameters.
Press SET to display the selected parameter’s stored value if needed.
Press UP/DOWN to change the parameter value if needed.
Press SET to save the current value displayed.
When ready from parameter adjustment, press and hold SET for 5 seconds to save any changes made.
The display will return to temperature reading. (This last step has to be performed correctly or all the
parameter changes are lost.)
Behaviour of digital input
The unit can be switched on and off via a door contact switch (optional). When delivered the door contact
terminals are bridged on the female connector. To connect the door contact switch remove the bridge and
connect door contact switch. The contact must be closed when the cabinet door is closed.
Attention
The unit can be damaged through incorrect adjustment. Do not modify any other values other than those
specified above. Adjusting other values may result in incorrect operation and damage to the unit.