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 EN 50110-1 voltage testers must
be checked if they function correctly, briefly before
and whenever possible after the use, for determi-
ning absence of voltage.
Step 1 – Test of the display
Press and hold button
. All display segments
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
Ω
/ V
. “OL“ and “MΩ“
appear on the display. Hold the test electrodes
together. The value “000 ... 1999 kΩ“ appears on
the display. Through this, the measuring electronic
and line have been tested.
Note
The red
-LED is not checked by this self-test.
A daily check is not neccessary due to the highly
reliable function.
When a voltage (≥ 50 V AC / 120 V DC) is indicated on
the LCD the LED must light up.
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 or the
red
-LED at voltage > ELV (e.g. 230 V~)does not
light up, the voltage tester may not be placed into
operation!
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