Dairy Establishment Inspection Manual – Chapter 14 - Aseptic Processing and Packaging Systems
1.14.13 Auxiliary Temperature Recorders/Controllers

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These instruments may be used in several locations on the aseptic processing and packaging system, 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. Two common installation points would be at the final heater outlet (to provide better feed back and control of the heating process), and at the inlet to the FDD (to provide a record and control of the pre-sterilization process).

1.14.13.01 General Conditions

The temperature recorder / controller unit shall be clean and in good mechanical condition. It should be moisture-proof under normal operating conditions. The chart positive drive mechanism shall be equipped with a system to prevent slippage and manual rotation (e.g. pin to puncture chart paper). It must also be equipped to produce a continuous permanent record of all pertinent information (i.e. time of day and temperature). The processor is responsible to indicate on the chart recorder the chart part number to be used. Pens should be operational and easily calibrated. The unit should be serviced at least once a year, and records of the servicing kept in the plant's file.

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