Velleman DVM856 Mode D'emploi page 13

10.7 DATA HOLD
Press "HOLD" to lock the displayed value. Press again to exit.
10.8 BACKLIGHT
Hold " " pressed for 2 seconds to switch the backlight on or off. The
backlight will also switch off automatically.
11. Battery and Fuse Replacement
WARNING: To avoid electrical shock always disconnect the test
leads prior to opening the housing. To prevent fire hazards, only use
fuses with the same ratings as specified in this manual.
Remark: refer to the warning on the battery compartment
There are no user-serviceable parts inside the device.
Refer to an authorized dealer for service and/or spare parts.
Disconnect the test leads from the test points and remove the test
leads from the measuring terminals before replacing the batteries or
fuses.

When" " is displayed, the battery should be replaced.

Fuses rarely need replacement and blown fuses almost always result
from human error.
To replace the battery:

Switch of the meter.

Remove the screw at the back of the case and gently open the housing.

Remove the old battery and insert a new one.

Close the housing and fasten the screw.
Battery: 2x AAA/R03, make sure to respect the polarity
Fuse: F0.5 A/500 V, 5 x 20 mm
Make sure the meter is closed tight and put the protective edge back in
place before using the meter.
12. Troubleshooting
If the device acts abnormal while measuring, this means that the internal
fuse is defective.
Keep in mind that a low battery level could lead to incorrect measurements.
Replace the battery on a regular basis.
(tip: the reduced luminosity of the backlight/LCD display indicates a low
battery level)
Use this device with original accessories only. Velleman nv cannot
be held responsible in the event of damage or injury resulting from
(incorrect) use of this device. For more info concerning this product
V. 01 – 06/08/2018
DVM856
13 ©Velleman nv