Gossen MetraWatt METRAVOLT 12D+L Mode D'emploi page 17

3. Putting into operation
3.1 Battery
Your instrument is already supplied with a 9 V block
battery in accordance with IEC 6 LR 61.
The battery status is indicated by a battery symbol
on the display (see section 6).
3.2 Testing correct display and function (self-test)
In accordance with DIN VDE 0105-100 voltage
testers must be checked if they function correctly,
briefly before and whenever possible after the use,
for determining absence of voltage.
Step 1 – Test of the display
Press and hold button
light up on the display, additionally, the "Ω" LED
and rotating field LEDs light up as well as a buzzer
sound can be heard.
Release button , the value "0.00 ... 0.02 V" is
indicated on the display.
Step 2 – Checking the line / function
Afterwards, actuate button
appear on the display. Hold the test electrodes
together. The value "000 ... 002 kΩ" appears on the
display. At the same time, an acoustic signal is ge-
nerated and the green LED "Ω" lights up. Through
this, the overall functions have been tested.
Step 3 – Test of the LV indication
Check the function of the LV indication (red LED)
at a known voltage source (AC and DC).
At the same time, the voltage value is indicated on
the display.
Attention!
If one of the displays fails during the self-test – even
if only partial failure occurs – or if the instrument
does not indicate a function standby, the voltage
tester may not be placed into operation!
. All display segments
. "OL" and "MΩ"
Ω / V
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