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Problem Causes and Solutions
Temperature readout differ
-
ent than expected, e.g. the
heat source is set at 300°C,
the PRT measures 275°C.
• Measure the PRT resistance at TPW.
• If the resistance of the PRT is less than the rated resis-
tance, e.g. 70Ω for the 5608/5609, there may be a short
in the sensor. Contact an Authorized Service Center.
• If the resistance of the PRT is only a few ohms, there
may be a short in the four lead-wires. Contact an Autho-
rized Service Center.
• If the PRT is open, the resistance will be “Out of Limits”
or in the kilohm or megohm range. Contact an Autho-
rized Service Center.
5608/5609
User’s Guide
18
1.888.610.7664 sales@GlobalTestSupply.com
Fluke-Direct.com