Lely Industries NV

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• Lely Industries NV

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Why did Lely develop a watchdog?
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Why did Lely develop a watchdog?

• Automatic transfer between bulk tanks
• Trace-ability and monitoring
• Lack of visual inspection in 24 Hour process.
• Many countries seeking improved monitoring
  devices.
• Validation cleaning process.
• Food safety important for Lely.

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Goals

• Check and store data in regard to
• Milk tank-cleaning
• Milk line-cleaning
• Milk temperatures etc. in Bulk Tanks
• Conductivity of cleaning/sanitising solutions
• Give ready signal to start milking
• Give alarm signal if anything fails
• Tamper proof continuous monitoring
• For robotic and conventional systems

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Pre-requisites

• For use around the Globe.
• No welding on tanks etc.
• Reliable.
• Users ready for new regulations and legislation.
• Measure results direct.

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Validation of the hygiene-process

• Validation through indirect parameters like
• Has cleaning taken place?
• Concentration detergents?
• Temperature cleaning-process?
• Time of the cleaning-process?

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Validation of the hygiene-process

• Means that the real measured values are compared
  with the reference values and in case of
  variations beyond the tolerances
• Generate alarm
• Register and store alarm in memory

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Monitoring the cleaning and production process

• hand-shaking production- and cleaning-process
• Guard cleaning-process for
• Important parameters
• Concentration
• Temperature
• Time
• Guarding production-process temperature bulk tank
  (too low/high)
• Agitator bulk tank

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Synthesis between the 4 essential factors
Concentration
Temperature
Mechanical forces
Contact time
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Functions

• Monitoring cleaning milk line
• Monitoring cleaning milk tank
• Monitoring cleaning buffer tank
• Monitoring milk tank /buffer tanktemperature
  time/cleaning solutions/ agitation valve
  positions

All functions are not yet possible for all
configurations.
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Guard Cleaning milk line

• Measures time temperature,conductivity valve
  positions
• Detects cleaning phase (pre-, main- post-)
• Alarms if
• Times of phases are out of setting
• Temperature of phases are out of setting
• Pre-cleaning temp.
• Main-cleaning temp.
• Post-cleaning temp.
• Valve is in tank-position during cleaning

All functions are not yet possible for all
configurations.
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Guard cleaning milk tank

• Measures temperature, conductivity,
  agitator-function
• Detects cleaning phase (pre-, main-, post-)
• Alarms if
• Times of phases are out of setting
• Agitator is off during cleaning
• Tank is not empty after cleaning
• Milkline valve is in tank position
• Conductivity is out of range

All functions are not yet possible for all
configurations.
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Guard cleaning milk tank Buffer Tank

• Alarms if
• Temperature of phases are out of order
• Pre-cleaning temp.
• Main-cleaning temp.
• Post-cleaning temp.
• Conductivity of the different phases are out of
  order
• Pre-cleaning conductivity water-condition
• Main-cleaning conductivity gt 0,5 solution
• Post-cleaning condition water-condition

All functions are not yet possible for all
configurations.
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Guard cleaning milk tank Buffer Tank

• Ready signal if
• Milk tank is empty AND cleaning is okay
• Tank valve is closed
• Milk line valve is in tank position

All functions are not yet possible for all
configurations.
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Guard milk tank/buffer tank

• Measures temperature, empty tank,
  agitator-function
• Alarms if
• Temperature is out of range
• Agitator switched off too long
• Empty tank too long
• Milk line valve in sewer position
• Milk tank valve open more then 30 sec.

All functions are not yet possible for all
configurations.
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Guard milk tank/buffer tank

• DO NOT LOAD when
• Temperature is out of range
• At power-failure of Hubble (7 hours, temp.
  gt5,5C)
• At system-failure of Hubble
• Measures milk tank valve
• When the milk tank is unloaded, gives alarm if
• Milk flows into milk tank after redirecting milk
  flow
• Tank valve is opened before milk flow is
  redirected

All functions are not yet possible for all
configurations.
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Memory

• Data stored in memory
• Max. cleaning temperatures
• Max. conductivity
• Date and time-period of cleanings and agitator
• Milk-temperature each 15 min. (adjustable)
• Alarm descriptions with date and time-period

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Memory

• Data stored is not erasable, and can not be
  manipulated
• Memory retains data also after lightning etc.
• Data stored for 6 months, than overwrite of first
  data

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Data Display

• Cleaning-temperature C
• Milk-temperature C
• Cleaning-conductivity mS/cm
• Agitator ON/OFF indicator
• Arrow shows temperature rise/fall

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Data visualisation

• See all stored data
• Temperature, conductivity, alarms
• Change all settings
• Customer , time/date, parameters
• Change configuration (protected)
• Which milk tank system
• Calibrating functions

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Data visualisation with Hubble Manager software

• Connecting the Hubble to PC (RS232)
• Download data
• See all stored data, settings, configurations
• See graphs of
• Temperature of milk tank
• Temperature of cleaning milk line
• Temperature and conductivity of cleaning milk
  tank
• Real time milk tank temperatures

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Sensors

• Sanitary construction
• In accordance with required accuracy
• Industrial proven reliability

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Sensors

• Conductivity / Temperature

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Sensors

• Level

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Sensors

• Temperature

Low reaction time ( small t)
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Installation

• Installation of Hubble, sensors, cables
• Start-up with learning period
• To learn farmer specific data like
  times/temperature conductivity of cleaning
• Alarms will be stored but not activated
• After 2 weeks evaluate settings, change if
  necessary.
• Every year recalibrate sensors

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Build with standard prints and contacts
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Wiring scheme.
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Operation

• See all data on display/PC
• At alarms
• Alarm LED and alarm buzzer switched on
• Reset alarm pressing a key (buzzer off)
• Solve problem
• Accept alarm by pressing a key (LED off)
• If no ready signal to robot
• Robot will not start because cleaning not okay

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To summarize

• We believe to have build the most advanced
  Watchdog to guard the hygiene and storage of
  milk.
• Flexible in the use and customizing
  possibilities.
• Meeting the demands from modern industries that
  aim at HACCP structures.

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