8. Other informations
105466
– TW-31-E - V1.9 - 06.04.2021
Page 61
to section 8.2:
Safety function: “First milk in the tank” [h2]
Functionality:
The detection of the feeding of warm milk is based on the assumption that the tem-
perature in an empty tank changes or remains stable after the cleaning has been
finished. If there is a sudden change in temperature, this can only have been caused
by the feeding of warm milk.
If this is detected, the tank monitor changes into the mode “cooling”.
Alternatively this detection can be derived from the signal of the milk pump or the
magnetic valve of the plate heat exchanger of the pre-cooling (if available) - or it is a
combination of both.
Warning messages:
If the milk feeding was detected without an activation of the cooling, the farmer can
be warned by errors F17, F18 and F19.
With the detection of the milk feeding and a temperature of more than 8°C the three
timers [h17, h18, h19] are started.
8.3
Detection of mode “Cleaning” - parameter [h4].
In this parameter is determined how the tank monitor can detect the start and the
end of the cleaning mode.
Setting parameter [h4] = 0
Permanent signal from the tank control (cleaning active)
Select the setting, if the tank control detects an active cleaning mode by a permanent
signal.
Setting parameter [h4] = 1
Activation by signal “open cold water valve”, end by time [h5]
-
Start cleaning mode by trigger signal “open cold water valve”
- Start timer [h5] (= minimum activation time cleaning mode)
- In case of a another signal of cold water valve prior to end [h5] - timer [h6] starts
(can be done several times).
After end of [h6] = End of cleaning mode
Setting parameter [h4] = 2
Same as setting 1, but with extension of time for detection agitator [h5+h6]
Same procedure as setting 1, however, the signal of the agitator is additionally used
as trigger signal to start the timer [h6].
