Troubleshooting
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Assembly PKF 36
Error category
Error signalling
Problem
Display "ot" and process value change with 0.5 Hz
Error signalling
Problem
Display "ot" and process value change with 0.5 Hz
Possible cause
Device internal temperature above 65 °C
Solution
Use protective fitting / cooling fitting / shield radiant heat
![Use protective fitting / cooling fitting / shield radiant heat](/api/keller/getMedia?bu=its&id=ID9000021)
Device internal temperature above 65 °C
Solution
Use protective fitting / cooling fitting / shield radiant heat