Benning DUSPOL digital LC, Operating Manual

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12/ 2008 DUSPOL
®
digital LC 6
 
Operating manual
DUSPOL
®
digital LC
Before using the voltage tester DUSPOL
®
digital LC:
Please read the operating manual carefully and
always observe the safety instructions!
List of contents:
1. Safety instructions
2. Functional description of the voltage tester
2.1 Measuring point illumination
2.2 Hold function
3. Functional test of the voltage tester
4. How to test AC voltages
4.1 How to test the phase at AC voltage
5. How to test DC voltages
5.1 How to test the polarity at DC voltage
6. How to test the phase sequence of a three-phase
mains
7. How to test an electrically conductive connection
(continuity check)
8. Battery replacement, indicating the battery vol -
tage
9. Technical data
10. General maintenance
11. Environmental notice
1. Safety instructions:
- Hold the voltage tester only by the insulated handles
A
and
B
and do not touch the contact electrodes
(probe tips)

!
- Immediately before use: Check the voltage tester for
correct operation! (see chapter 3). The voltage tester
must not be used if one or several display functions
fail or if the voltage tester is not ready to operate
(IEC 61243-3)!
- The voltage tester must be used only within the nomi-
nal voltage range of 6 V up to AC 690 V/ DC 750 V!
- Do not operate the voltage tester with the battery
compartment being open!
- The voltage tester complies with protection class IP
64 and therefore can also be used under wet condi-
tions (designed for outdoor use).
- For testing, firmly grasp the voltage tester by the
handles
A
and
B
.
- Never connect the voltage tester to voltage for longer
than 30 seconds (maximum permissible operating
time = 30 s)!
- The voltage tester only operates correctly within the
temperature range of - 10 °C up to + 55 °C at relative
air humidity of 20 % up to 96 %.
- Do not dismantle the voltage tester!
- Please protect the housing of the voltage tester
against contamination and damages!
- Please store the voltage tester under dry conditions.
- To prevent injuries and discharge of the battery, pro-
vide the contact electrodes (probe tips) with the enc-
losed cover after using the voltage tester!
Attention:
After maximum load (i.e. after a measurement of 30
seconds at AC 690 V/ DC 750 V), the voltage tester must
not be used for a duration of 240 seconds!
The voltage tester is marked with electric symbols:
symbol meaning
Device or equipment for working under
voltage
Push button
Alternating current (AC)
Direct current (DC)
Direct and alternating current
(DC and AC)
Phase-sequence clockwise, phase-
sequence indication (on the display)
Phase-sequence counter-clockwise,
phase-sequence indication (on the
display)
Phase-sequence indication; the phase
sequence can only be indicated at 50 or
60 Hz and in a earthed mains
Continuity check
Battery symbol, this symbol appears on
the display when the battery is too weak
This symbol shows the correct alignment
of the batteries to ensure correct polarity
Symbol for phase indication (on the
display)
Voltage value as digital indication, up to
approx. 80 V with decimal place (1/ 10 V)
Symbol for exceeding the upper limiting
value for low voltages (ELV) at AC voltage
(on the display)
Symbol for exceeding the upper limiting
value for low voltages (ELV) at DC voltage
(on the display)
Positive (+) polarity (on the display)
Negative (-) polarity (on the display)
2. Functional description
The DUSPOL ® digital LC is a two-pole voltage tester
according to IEC 61243-3 with digital display. As supple-
mentary function, the voltage tester is equipped with a
measuring point illumination and display illumination, a
phase and phase-sequence indication as well as con-
tinuity check. The signalling of the continuity check is
done optically and acoustically. For all these functions,
the voltage tester requires a built-in battery (2x micro
LR03/ AAA). Voltage checking without battery is possible
upwards of a voltage of ≥ 50 V. Determining the phase
of external conductors and the phase-sequence of a
three-phase mains is only possible provided the neutral
is earthed.
The voltage tester is designed for DC and AC voltage
tests within the voltage range of 6 V up to AC 690 V/ DC
750 V. It can be used to perform polarity tests at DC vol-
tage.
The voltage tester consists of the test probes L1
A
and
L2
B
and a connecting cable

. The test probe L1
A
is equipped with a LC display
4
as well as high-cont-
rast light-emitting didoes (LED). From a voltage of 6 V
onwards, the voltage tester switches on automatically.
The voltage tester only works properly with the batte-
ries (inside test probe L1
A
) being intact and inserted
correctly. The display
4
indicates voltages within the
nominal voltage range of 6 V up to AC 690 V/ DC 750 V.
Exceeding the limiting value for low voltages (ELV, AC
50 V, DC 120 V) is additionally indicated on the display.
Both test probes are provided with push buttons

. By
pressing both push buttons, the voltage tester switches
to a lower internal resistance (suppression of inductive
and capacitive voltages). Furthermore, a vibrating motor
(motor with a flyweight) is put under voltage. From appro-
ximately 200 V this motor is set in rotation. With the vol-
tage increasing, the motor’s speed and vibration increa-
ses as well so that additionally by means of the handle
of test probe L2
B
the voltage value can be estimated
roughly (e.g. 230 V/ 400 V). The duration of the test
with a lower internal resistance of the device (load test)