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5.7. PROBLEMS AND LOCATING OF FAULTS
PROBLEM CHECKLIST SOLUTION
No response/
Automatic reset
when the insulator
is removed
Batteries are dead Replace the batteries
Incorrect polarity of
the batteries
Remove the batteries
and insert them again
correctly
Poor battery contact
The battery symbol
appears on the LCD
screen
Batteries low Replace the batteries
"Lo" appears on the
screen (result below
34.0 °C or 93.2 °F
The thermometer has been
positioned incorrectly
Follow the instructions
of the user manual
to position the
thermometer correctly
"Hi" appears in the
screen (result
over 42.9 °C or
109.3 °F)
The operation method is
incorrect
Follow the instructions
of the user manual
to make a
correct measurement
"ErrP" or "ErrH"
appears on the
screen
Hardware problem Ask your distributor
"ErrE" appears on
the screen
The thermometer is outside
the operating temperature
range
Use the thermometer
within the operating
temperature range
The infrared sensor
temperature has not been
stabilised
Wait for about 10
seconds and take the
measurement again
The measurement
is not accurate or
there is some doubt
about its result
The infrared sensor is dirty Clean the infrared
sensor as indicated in
the manual
ENGLISH
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