25
Troubleshooting
Problem Possible
cause
Action
Power cannot be
turned on.
Battery level is low.
Replace the batteries with new ones.
See "Installing the batteries" on page 4
The AD adapter is disconnected. Properly connect the AC adapter.
See "Using the AC adapter" on page 5
.
Measurement values
are unstable
The unit is used in an
environment where electrical
noise is generated.
Use the unit and probe away from equipment
that produces electrical noise.
The probe connector is not
properly connected.
Properly insert the probe connector all the
way.
See "Installing the probe" on page 6
.
The unit has not adjusted to the
ambient temperature.
Wait until the unit has adjusted to the ambient
temperature before starting measurement.
Measurement values
are abnormal.
The sensor connected is not a
K-type thermocouple.
Connect a K-type thermocouple sensor.
An offset value has been set.
Check if an offset value is set.
See "Offset setting" on page 16.
Display is abnormal.
A malfunction is caused by static
electricity or other reason.
Stop logging if logging is in progress. Push
the reset switch on the back of the unit with a
thin pin or the like to reset the unit.
The clock setting is reset; set the clock again.
Other settings such as the logging interval are
retained.
NB. If none of these actions works, contact us or the store where you purchased the unit.
Summary of Contents for 8191-00
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