Additional cooling is necessary when the ambient temperature is higher than 45 °C (113 °F)
or when the pr
ocess temperature is above 110 °C (230 °F) and the ambient temperature is
above 35 °C (95 °F). The air cooling is improved by blowing pressurized air against the
sensor cover. The pressurized air can be supplied by the ventilation system. If no air is
available it is also possible to install water cooling with PR‑10038 cooling cover (except for
PR‑23‑SD where sensor head needs to be kept in original size for insertion and retraction).
Always mount the sensor so that the interconnecting cable points
do
wnwards from the sensor head.
CAUTION!
PR-23 Series User Guide
IM-EN-PR23-E
18
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