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Dairy processing: Aseptic processing and packaging systems
Auxiliary temperature recorders and controllers

These instruments may be used in several locations on the APPS, to provide a record of start-up pre-sterilization and product processing temperature, and to provide temperature signals to the thermal limit controller unit or other processing controls. 2 common installation points are at the final heater outlet (to provide better feedback and control of the heating process), and at the inlet to the flow diversion device (to provide a record and control of the pre-sterilization process).

General conditions

  • Are clean and in good mechanical condition
    • pens are operational and easily calibrated
  • Are moisture-proof under normal operating conditions
  • The chart positive drive mechanism is equipped with a system to prevent slippage and manual rotation (for example, a pin to puncture chart paper)
  • Produce a continuous permanent record of all pertinent information (time of day and temperature)
  • Use the chart part number indicated on the chart recorder
  • Service the unit at least once a year
    • keep records of the servicing on file
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