Elstat EMS-55, Technical Instruction Manual, Page: 19 / 26

19
HOW TO ENTER THE PARAMETER LIST
The parameters can only accessed with a special and unique sequence. The sequence is as follows:
Step 1
Switch the power to the control off
Step 2 Push and hold the set button
Step 3 Switch the power to the control back on
Step 4 Keep the set button pressed
until the word “PAS” appears on the display
Step 5 Release the set button
Step 6 Push the set button 3 times
Step 7 Push the value down button (second button from the left) once
Step 8 Push the value up button (third button from the left) twice
Step 9 Push the defrost button (fourth button from the left) 4 times
The first parameter “US” will now appear on the display, which means that you have entered the
parameters. If the display does not show the letters US then follow the procedure again from the start
(step 1)
CHANGING PARAMETER SETTINGS
Once the parameters have been entered the following button functions are applicable:

Set button. Scroll from parameter to parameter

Down button. To reduce the value of the current parameter.

Up button. To increase the value of the current parameter.
In parameter mode, the display will show firstly the parameter and then the current value.
Scroll through the parameter list until the desired parameter is shown. Then alter the value by
pressing up or down button. Once the desired values are set allow the EMS to show the temperature
again.
EMS-55 PARAMETERS
Parameter Description
SP This parameter sets the compressor cut out temperature during operational
mode. This is accessed by pressing the SET button and is not present in the
parameter scroll.
US Upper set point. Sets the upper limit of the operational set point i.e. the user
will not be able to set the control to a temperature higher than this value.
LS Sets the lower limit of the operational set point i.e. the user will not be able
to set the control to a temperature below this value.
dIF Differential. Added to the operational set point to give the compressor cut in
temperature during normal cycling.
CAL Calibration. Can be used to calibrate the appliance sensor or to add an
offset to aid in positioning of the sensor.
Rt Compressor rest time. The minimum time the EMS will wait, after reaching
the set point, before allowing the compressor to restart regardless of
whether the cut in temperature has been reached.
dS Delay to stand by. The time period that the EMS will wait after the outlet has
closed, before going into its standby mode. Must be set to a multiple of 30
Ld Light delay. The time the control will wait after the time set in parameter dS
has expired, before switching off the cabinet lights. Must be set to a multiple
of 30.