Fluke Datapaq Food Tracker User Manual page 47

If the process involves brine, be sure to keep thermocouple connectors away from
any residual liquid that may be on the barrier or in the working area. Salt on the
connectors will cause the thermocouples to fail in a very short time.
Allow the barrier (with lid open), heatsinks and logger to cool to ambient
temperature before further use; cooling overnight is usually sufficient.
An additional barrier should be purchased if insufficient time is available to allow
Examination of Thermal Barriers and Heatsinks
Once cool, examine the thermal barrier and heatsinks for damage or corrosion.
Remove any dirt or salt crystals with a damp cloth, and dry the barrier inside
with a dry cloth.
Following any evidence of moisture in the barrier (including, for barriers with a
separate face-plate, dampness in the yellow fibrous insulation on the rear of the
plate), place in a dry oven at 100°C/200°F for at least 2 hours. Allow to cool to
room temperature before next use.
Examine the heatsinks' thermometer strip: if the temperature has exceeded
77°C/171°F, or if there is any dark discoloration on the strip, allow the heatsinks
to cool to room temperature (around 15°C/60°F) before placing in a freezer at
−20°C/−5°F to cool overnight; this ensures the phase-change material
crystallizes. After freezing, allow the heatsinks to return to room temperature
and, before further use, replace the thermometer-strip with a new self-adhesive
one as supplied.
Contact Datapaq if the heatsink phase-change material leaks. It is a non-toxic
wax-like substance that dries hard powdery white and has a slight acidic smell.
Wait until it is dry before scraping off any material that has leaked onto the
surface of the barrier.
Store the cooled thermal barrier and heatsinks in a dry environment to prevent
the insulation from absorbing water.
Check the thermal barrier's seals and closing mechanism, and rectify any damage
before further use. Some sealing catches are designed to be set easily by hand,
and may require some adjustment after the first four or five runs.
FOOD TR ACK ER
the barrier to cool between test runs.
Running a Temperature Profile
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