Order number: 900350.011
V2.70
Seite 12
Example C:
In design C, the sensor is always in thermal contact with the medium.
In this case, the lower the amount of oil present, the higher the temperature rise.
Example D:
Design D has the same characteristics as design A.
Parameters involved
H1: Temperature rise for sample heating "LowFat".
H2: Minimum duration for sample heating "LowFat".
H3: Maximum duration for "NoContact" test heating
H4: Temperature rise for "NoContact" sample heating
H5: Maximum temperature for LowFat and NoContact facial expressions
Test heating procedure and alarm conditions
Once after start
After switching on the controller, it once executes a test heating. This is to avoid that the fryer is started, if
there is no or insufficient oil.
To fast temperature rise with insufficient oil
Parameter H2 defines a minimum required time for the temperature rise according to parameters H1.
In case of a faster temperature rise the heating is switched off and an alarm with “lack of oil” message is
triggered.
To slow temperature rise without oil
Parameter H4 defines a minimum required temperature rise for the duration according to parameter H3.
A slower temperature rise may indicate that no oil is present and the sensor is no longer in the oil. The
heating is switched off and an alarm with “lack of oil” message is triggered.
In baking mode
In baking mode, i. e. above the temperature of parameter H5, the process is no longer reliable.
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Monitoring of the minimum temperature increase is not possible when cold goods are thrown into the
deep fryer.
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The monitoring of the maximum temperature increase is not possible because this would require an
unallowed deviation from the setpoint.
Please note:
A medium other than oil and changing the heating output will result in other parameter values.
Temperature range for LowFat- and NoContact settings
Parameter H5 sets a limit, up to which the test heating is started after switching on the controller.
Please note that the test heating is aborted if this limit is exceeded.
Alarm and Reset
If the test heating causes an alarm, the display flashes with "FAt" and the buzzer sounds. The test heating is
stopped and the heater (i.e. burner and fan) is switched off.
The buzzer can be acknowledged immediately with the DOWN key. To reset the alarm fill up oil and switch
off and back on the controller with the OFF key.
Содержание ST552 Glass
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