7. Other information
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7.5 Milk cooling tank lid open in cooling mode
Parameter [A21] = 6
In cooling mode:
When the lid is opened, the stirrer is switched off immediately. Fault message "F77"
appears in the display, alternating with the temperature.
If the lid is open more than 1 minute, the compressor is also switched off.
Closing the lid continues the cooling mode.
Continuous stirring-mode
If the lid is opened during continuous stirring-mode, the stirrer is also switched off
immediately and the controller switches to OFF mode.
7.6 Sensor correction procedure
Sensor correction means:
A correction is applied to the value measured by the sensor. This is then cumulatively
effective over the whole measurement range.
An adjustment to the sensor correction is then necessary only:
- in conjunction with first installation,
- if the sensor cable length is altered,
- when replacing a faulty sensor.
In order to adjust the sensor correction, a reference thermometer is needed.
Proceed as follows:
Switch off power supply
Install / change sensor
Use the reference thermometer to establish the milk temperature.
Switch on control unit and set [c90] to the measured number of degrees.
The control unit calculates the difference between the reference thermometer
reading and temperature sensor 1 and automatically sets this in parameter [c91].
Parameter [c91] can be displayed and adjusted at any time.
Hold down the up and down arrow buttons simultaneously:
The settings are stored.
Proceed with the setting for sensor 2 (if present) in the same way. In this case pa-
rameters [c92 and c93] must be set.
