10
17. Troubleshooting
Refer to the table below before consulting us or our Service Network for repair service.
Problem
Possible Cause
Remedy
Power does
not turn on.
Battery power is insufficient. Replace the battery. See "Replacing the Battery"
If the power does not turn on
even after replacing the
battery, an element inside the
thermometer may have been
damaged by impact.
Was the thermometer dropped or given a strong
impact? In this case, the thermometer must be
repaired. Contact the dealer from which the product
was purchased, or our service network.
The readings
are abnormal.
Battery power is insufficient
Replace the battery. See "Replacing the Battery"
Ambient temperature is
fluctuating.
Allow the thermometer to adapt to the ambient
temperature.
The PC-8400
Ⅱ
is held by
Spot Guide.
Hold the PC-8400
Ⅱ
properly by its body. Holding the
Spot Guide will affect the measurement accuracy.
The PC-8400
Ⅱ
is used in an
environment with electrical
noise.
Move the thermometer to a place free from electrical
noise that can cause abnormal readings.
Wrong emissivity is set.
Set the proper emissivity of the object to be measured
by referring to the table of emissivities.
The surface of the object to be
measured is frozen or covered
with condensation or dust.
Clean the surface of the object. Condensation or dust
on the surface of the object will affect the readings.
The readings
are unstable.
The battery power is
insufficient.
Replace the battery with a new one. (See "Battery
Installation and Replacement".)
The ambient temperature
changes are too extreme.
Leave the PC-8400
Ⅱ
in an atmosphere with a stable
temperature and allow the thermometer to adapt to the
ambient temperature.
(When the ambient temperature changes are too
extreme for the temperature compensation function to
work properly, the readings become unstable.)
The emissivity of the object is
too small.
If the emissivity of the object is smaller than 0.30, the
infrared energy emitted from the object may be
insufficient to give stable readings. Place black
mending tape over the surface of the object and set the
emissivity to 0.95 before starting measurement.
The PC-8400
Ⅱ
is used in an
environment with electrical
noise.
Move the thermometer to a place free from electrical
noise that can cause abnormal readings.
