Cleaning And Storage - Velleman DVM8861 Mode D'emploi

8. Troubleshooting
LCD display does not light up
when the measurements
trigger is pulled.
The measured temperature
changes very quickly and the
shown value seems unlikely.
Display shows
 Repairs or service should only be carried out by qualified and trained
technicians.
9.

Cleaning and storage

The IR sensor (1) is the most delicate part of the thermometer and should be

kept clean at all times.
To do this, only use a soft cloth or cotton bud. Do not use excessive

pressure on the sensor.
Wipe the other parts of the thermometer regularly with a dry cloth. Do not use

abrasive solutions or solvents.
Do not submerge the thermometer in water or any other liquid.

There are no user-serviceable parts.

Contact your dealer for spare parts if necessary.

The device must be stored in a place with temperature conditions between 10°C

and +60°C (+14°F and +140°F) and relative humidity lower than 80%.
10. Battery
 To replace the battery, wait until the device powers off
automatically (after ± 7 seconds). When the lock mode is
on, switch it off first by pulling the measurement trigger
(6) once.
 Open the battery cover (7). The battery cover has a
hinge at the bottom of the device. Hold the battery cover
at the top (next to the measurement trigger (6)) and
gently pull away from the device.
 Remove/insert the new 9V battery. Make sure the
polarity is as indicated in the casing.
 Push the cover back towards the device until it snaps
into place.
V. 04 – 08/07/2014
DVM8861
Possibly a battery problem. Check and replace
the battery.
Check the emissivity value. When set too low,
inaccurate readings will result.
Over range indication, measured temperature is
too high or too low. See specifications for
temperature range.
WARNING: A malfunction may occur if the power is
on when the battery is replaced. Dispose of batteries
in accordance with local regulations. Keep the
battery away from children.
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