6. Operation and fault handling
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6.
Operation and fault handling
6.1 Description of tank monitor operation
During the entire cooling and cleaning process the tank monitor checks the operation
of all processes to guarantee the perfect condition of the milk. Errors are displayed
flashing on the display via corresponding error codes. Depending on the type of
alarm two LEDs (red and green) flash or blink additionally.
In case of errors which may jeopardise the milk quality, the problem is indicated by
the red LED as a “critical alarm”. In this case milk must not be filled into the tank
unless a careful check has been carried out!
In the “F” parameters (see section 7.5) is defined if the error is a system alarm, an
informative alarm or a critical alarm. In addition it is parameterized whether a relay
function, an email or a SMS message should be carried out. Therefore the relay
functions in the “A”- parameters (see section 7.6) must be assigned to a relay or the
SMS function must be activated.
The tank monitor “knows” the following alarm types:
Critical tank monitor alarms
(red LED + error code in the display)
During cooling mode: - minimum and maximum milk temperature
- agitator function and stirring intervals
- duration of power failure
- milk temperature too high for a long period of time
During cleaning:
- cleaning temperatures
- cleaning time
A list of all critical alarms and their corresponding configuration can be found in
section 7.5.
Informative tank monitor alarms
(green LED + error code in the display)
During cooling mode: - milk temperature too high for a long period of time
- milk temperature too low
- malfunction agitator and agitator times
- maximum time until next cleaning
- duration of the power failure
During cleaning:
- cleaning temperatures
- detergent dosage and exposure time
A list of all informative alarms and their corresponding configuration can be
found in section 7.5.
Additional system-alarms
(only error code on display)
(Depending on parameterization they can be both, critical or informative).
During cooling mode: - cooling time first milking
- broken sensor
- short-circuit of sensor, etc.
During cleaning:
- monitoring of butterfly valve, rinsing pump,
cleaning pump etc.
- times for water intake and outlet
- heating times, etc.
A list of all system-alarms and their corresponding configuration can be found in
section 7.5
