46
Measuring Temperatures
When measuring temperatures with the thermocouple
applied to the surface of the measurement object
Clean the surface so that the thermocouple can make contact
with the object securely.
If no numeric value is displayed after the thermocouple is
attached ([OPEn] is displayed):
The instrument or thermocouple may be malfunctioning.
Check this with the following procedure.
1
Short-circuit the V and COM terminals of the instrument
using the test leads.
The ambient temperature
is displayed.
To step 2
The ambient temperature
is not displayed.
The instrument is malfunctioning. Send
it for repair.
2
Connect the thermocouple in the correct direction.
[OPEn] remains
displayed.
The thermocouple may be
malfunctioning (blown).
Replace the thermocouple with a new one.
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