INST No.INE-459-0P2CE Ver. 1.11
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7.1 Self-diagnostic function
The thermometer provides the self-diagnostic function.
The followings are the displays on abnormal conditions.
Display
(Main
display)
Contents Alarm
Countermeasure
High limit over range
(The object temperature
exceeds the measuring
range of the thermometer)
The status marker
"
AH
" lights and the
buzzer sounds. *1
Is the emissivity rate set too low?
Set the correct emissivity rate by
referring to [5.4 Emissivity rate
setting].
Low limit over range
(The object temperature is
lower than the measuring
range of the thermometer.)
The status marker
"
AL
" lights and the
buzzer sounds. *1
Is the emissivity rate set too high?
Set the correct emissivity rate by
referring to [5.4 Emissivity rate setting].
Abnormal ambient
temperature
(The thermometer is placed
in the environment other
than the working
temperature.)
Er1 display only
Use the thermometer in the
environment from 0 to 50ºC (32
to 122
o
F).
Main display
(Thermom
ete
r)
*2
EEPROM data broken
(Stored data, temperature
data and calibration data
have been initialized by the
data ROM broken.)
Er4 display only
Re-adjustment is necessary.
Return the thermometer to us.
(Stored data and calibration data
are initialized.)
*1 When the alarm set-point is "
oFF
", no buzzer sounds.
*2 When the power supply is turned on or when the stored data is displayed, this error code is
displayed.
7.2 Storage
7.3 Cleaning of objective lens
Wipe the objective lens periodically with a soft cloth.
7.4 Cleaning of external display and eyepiece cover
Clean them periodically with a soft cloth.
7. Maintenance and check
• Don’t store the thermometer at a hot and/or wet place.
• Make sure to mount the lens cap for storage.
• Remove the batteries if the thermometer is not used for longer than 2 weeks,
otherwise the thermometer may become defective due to an electrolyte leak
failure of the batteries.
Caution
