9. Other information
– General
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– WTS-300-E - V4.1 - 20.01.2022
9.3 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.
9.4 Function second temperature sensor
The second temperature sensor can take over different tasks or functions. The sen-
sor input FÜ2 must be activated via a corresponding parameterisation [A50] as fol-
lows:
0.
Deactivated
1.
Safety temperature sensor
used as monitoring sensor (redundancy) for the first sensor. In [h38], the maxi-
mum temperature difference of the monitoring sensor FÜ2 to the control sen-
sor FÜ1 is set. If the set temperature difference is exceeded for more than 5
min., fault code F38 occurs.
2.
Heating temperature sensor
used to control the heating or holding temperature during cleaning.
3.
Sensor activation
the measured temperature is stored in the saved data for later checking. There
is no control function.
4.
Sensor activation
as 3: - but the temperature is shown on the display in OFF-mode.
If FÜ2 develops a fault (break or short-circuit), fault code [F38] will also be displayed
after 5 minutes.
