DVM9915
V. 03 – 29/11/2017 15 ©Velleman nv
17.2 BACKLIGHT
In any range, hold “D.H ” pressed for 2 seconds to activate the backlight.
Hold pressed again to exit the backlight mode.
17.3 RELATIVE MEASUREMENT
Press “REL ” to (de)activate the relative measurement mode. This function
does not apply for “frequency” or “duty cycle” measurement mode.
17.4 AUTO/MANUAL RANGING
Repeatedly press “RANGE” until the display shows the desired range. Hold
“RANGE” pressed for 2 seconds to activate the auto-range function.
Immediately select a higher range if “OL” appears on the display.
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 off the meter.
Remove the two screws on the bottom of the case and gently open the
housing.
Remove the old battery and insert a new one.
Close the housing and fasten the screws.
Battery: 2 x AA/LR6, make sure to respect the polarity
Fuses: F0.5 A/600 V, 5 x 20 mm and F15 A/600 V, 6 x 32 mm
Make sure the meter is closed tight and put the protective edge back in
place before using the meter.
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