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Troubleshooting
Problem/symbol
Possible cause
Unit won't switch on.
Batteries are dead.
Batteries are wrongly
inserted.
Incorrect or fluctuating
Sensor dirty/ broken.
temperature values
Low battery level,
measurements are still
possible.
The temperature is
outside the
measurement range.
Action
Insert new batteries.
Check the position and
polarity of the batteries.
Check the measurement
sensor and if necessary
clean it.
Replace the batteries
soon.
Check the controller
settings
or
. If
the problem persists,
leave the thermometer
alone for a few minutes
before taking any
further measurements.
- 30 -
Problem/symbol
Possible cause
Measured body
temperature exceeds
43.0 °C (109.4 °F).
Measured object/
ambient temperature
exceeds 100 °C
(212 °F).
Measured body
temperature is below
32 °C (89.6 °F).
Measured object/
ambient temperature
is below 0 °C (3 °F).
Cleaning and care advice
The sensor is the most sensitive part of the infrared thermometer. Be careful
not to touch or scratch the surface of the measurement sensor. In case of dirt,
carefully and gently rub the sensor using a cotton swab soaked in alcohol or mild
cleaning agent (e.g. strongly diluted washing-up liquid). Do not use any aggressive
Action
Check whether you are
using the correct
measuring mode (body
temperature/ object
temperature). Repeat
the measurement.
Make sure the
measurement sensor is
positioned correctly.
Check whether you are
using the correct
measuring mode (body
temperature/ object
temperature). Repeat
the measurement.
Make sure the
measurement sensor
is positioned correctly.
- 31 -
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