5. Operation
105204
– WTS-300-E - V4.1 - 20.01.2022
Page 21
5.1.3 Continuous stirring mode
From OFF mode, the agitator can be switched on by pressing a button and then
switched off again by pressing the OFF button.
Parameter [C25] can be used to set the time after which the agitator is to switch off
automatically.
The countdown can be interrupted at any time using the OFF button.
If [C25] is set to '0', the agitator will run continuously, but can be switched off at any
time using the OFF button.
From the continuous stirring mode, it is possible to switch directly to the cooling or
cleaning mode by pressing a button.
5.1.4 Cleaning mode
(can NOT be started from cooling mode)
The cleaning timer controls the water intake by time or level, as desired. All running
times (heater, pump, detergent injection) can be set separately. The automatic
switchover from acidic to alkaline detergent is also adjustable.
The WTS-300 controls the different processes and times fully automatically.
Following a power failure the control unit will restart in the mode it was in be-
fore. See also section 9.6
Robot interface
Depending on the parameter settings, the control unit includes a built-in robot inter-
face with the following functions:
-
„Robot start / stop“ and
-
“Butterfly valve open / closed“
These functions are controlled via the keypad.
Tank monitor function
During the entire cooling and cleaning process, the built-in tank monitor keeps check
on the correct operation of all components, in order to guarantee the perfect state of
the milk.
In particular, the following are monitored:
- minimum and maximum milk temperatures during cooling
- power failure (optionally power pack required!)
- agitator function (optionally agitator monitoring module required
- minimum and maximum temperatures during cleaning
- etc.
Any faults are indicated by two LEDs, and associated fault codes flash in the display.
In the case of errors which may jeopardise the milk quality, the red LED “Don't add
milk” lights up.
