Technical Data - Benning DUSPOL master Bedienungsanleitung

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Operating manual
DUSPOL master
®
Before using the voltage tester DUSPOL ® master:
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
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. General maintenance
8.

Technical data

1. Safety instructions:
- Hold the voltage tester only by the insulated
handles and 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 (voltage class A) must be used
only within the nominal voltage range of 12 V up
to AC 400 V/ DC 750 V!
- The voltage tester complies with protection class
IP 64 and therefore can also be used under wet

conditions (designed for outdoor use).
- For testing, firmly grasp the voltage tester by the

handles and .
- 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 provide the contact electrodes
(probe tips) with the enclosed cover after using
the voltage tester!
Attention:

After maximum load (i.e. after a measurement of 30
seconds at AC 400 V/ DC 750 V), the voltage tester
must not be used for a duration of 240 seconds!
The voltage tester is marked with international electric
symbols and symbols for indication and operation with
the following meaning:
symbol meaning
Device or equipment for working under
voltage
Push button
Alternating current (AC)
Direct current (DC)
Direct and alternating current (DC
and AC)
Push button (manually actuated);
indicates that respective indications
only occur when both push buttons are
actuated
Phase-sequence clockwise
Phase-sequence indication; the phase
sequence can only be indicated at 50
 or 60 Hz and in a earthed mains
Symbol for phase and phase-sequence
indication (phase-sequence clockwise)
2. Functional description
The DUSPOL ® master is a two-pole voltage tester
according to IEC 61243-3 with visual display 
and without own power supply. The voltage tester
is designed for DC and AC voltage tests within the
voltage range of 12 V up to AC 400 V/DC 750 V. It
can be used to perform polarity tests in DC and phase
tests in AC. The voltage tester indicates the phase- Never touch the contact electrode of test probe L2
sequence provided that the neutral is earthed. during the single-pole test (phase test)!
Note:
The voltage tester consists of the test probes L1
and L2 and a connecting cable . The test probe The reading of the LC display  might be impaired
L1 is equipped with a display . Both test probes due to unfavorable light conditions, protective clothing
are provided with push buttons . Without pressing or in insulated locations.
both push buttons, the following voltage steps (AC
or DC) can be indicated: 24 V+; 24 V-; 50 V; 120 V; 5. How to test DC voltages
230 V; 400 V; 750 V. By pressing both push buttons, - The voltage tester must be used only within the
the voltage tester switches to a lower internal nominal voltage range of 12 V up to DC 750 V!
resistance (suppression of inductive and capacitive - Never connect the voltage tester to voltage for
voltages). Thus, also the indication of 12 V+ and longer than 30 seconds (maximum permissible
12 V– is activated. Furthermore, a vibrating motor operating time = 30 s)!
(motor with a flyweight) is put under voltage. From - Firmly grasp the insulated handles
approximately 200 V this motor is set in rotation. With the test probes L1 and L2.
the voltage increasing, the motor's speed and vibration - Place the contact electrodes  of the test probes
increases as well so that additionally by means of the L1
handle of test probe L2 the voltage value can be unit under test.
estimated roughly (e.g. 230/ 400 V). The duration of - For AC voltages from 24 V onwards and when
the test with a lower internal resistance of the device pressing both push buttons (load test) from 12 V
(load test) depends on the value of the voltage to onwards, the LEDs "plus" and "minus"  and 
be measured. To prevent excessive warming of the light up. Furthermore, all LEDs light until the step
voltage tester, it is equipped with a thermal protection value of the applied voltage is reached.
(reverse control). With this reverse control, the speed - When pressing both push buttons  and from
of the vibrating motor decreases as well. an applied voltage of approx. 200 V onwards, a
Display field
vibrating motor is put in rotation inside the test
The display system consists of high-contrast light- probe L2
emitting diodes (LED)  indicating DC and AC voltages speed of this motor is increasing as well.
in steps of 12 V; 24 V; 50 V; 120 V; 230 V; 400 V; 750 V Please make sure that you touch the voltage tester at
. The indicated voltages are nominal voltages. With the insulated handles of test probes L1
DC voltage, the LEDs also indicate the polarity for 12 V only! Do not cover the display and do not touch the
and 24 V (see chapter 5). The 12 V LED can only be contact electrodes!
activated by pressing both push buttons.
LC display 5.1 How to test the polarity at DC voltage
The LC display  serves for the phase test with - The voltage tester must be used only within the
alternating current (AC) and indicates the phase- nominal voltage range of 12 V up to DC 750 V!
sequence of a three-phase mains. - Never connect the voltage tester to voltage for
longer than 30 seconds (maximum permissible
3. Functional check operating time = 30 s)!
- The voltage tester must be used only within - Firmly grasp the insulated handles
the nominal voltage range of 12 V up to the test probes L1 and L2.
AC 400 V/ DC 750 V! - Place the contact electrodes  of the test probes
- Never connect the voltage tester to voltage for L1
longer than 30 seconds (maximum permissible unit under test.
operating time = 30 s)! - If LED  lights up, the "positive pole" of the unit
- Check the voltage tester for correct function under test is at test probe
immediately before use! - If LED  lights up, the "negative pole" of the unit
- Test all functions by means of known voltage under test is at test probe
sources. Please make sure that you touch the voltage tester at
• For DC voltage tests use e.g. a car battery. the insulated handles of test probes L1
• For AC voltage tests use e.g. a 230 V socket. only! Do not cover the display and do not touch the
Do not use the voltage tester unless all functions are contact electrodes!
operating correctly!
Check the function of the LC display  by single-pole 6. How to test the phase sequence of a three-
connection of the contact electrode of the test probe phase mains
L1 to an external conductor (phase). - The voltage tester must be used only within the
nominal voltage range of 12 V up to AC 400 V!
4. How to test AC voltages - The phase-sequence test is possible from 230 V
- The voltage tester must be used only within the AC voltage (phase against phase) onwards in a
nominal voltage range of 12 V up to AC 400 V! earthed three-phase mains.
- Never connect the voltage tester to voltage for - Firmly grasp the insulated handles
longer than 30 seconds (maximum permissible the test probes L1 and L2.
operating time = 30 s)! - Place the contact electrodes  of the test probes
- Firmly grasp the insulated handles and of L1
the test probes L1 and L2. unit under test.
- Place the contact electrodes  of the test probes - The LEDs have to indicate the external conductor
L1 and L2 against the relevant points of the voltage.
unit under test. - Never connect the voltage tester to voltage for
- For AC voltages from 24 V onwards and when longer than 30 seconds (maximum permissible
pressing both push buttons (load test) from 12 V operating time = 30 s)!
onwards, the LEDs "plus" and "minus"  and  When contacting the two contact electrodes  with
light up. Furthermore, all LEDs light until the step two phases of a three-phase mains connected in
value of the applied voltage is reached. clockwise rotation, the LC display  indicates the "R"
- When pressing both push buttons  and from symbol. If for two phases the rotation is anti-clockwise,
an applied voltage of approx. 200 V onwards, a no symbol appears on the LC display. The phase-
vibrating motor is put in rotation inside the test sequence test always requires a counter-test! If the
probe L2 . With the voltage increasing, the LC display indicates clockwise rotation for two phases
speed of this motor is increasing as well. of a three-phase mains, those two phases must be
Please make sure that you touch the voltage tester at contacted again with reversed contact electrodes 
the insulated handles of test probes L1 and L2 during the counter-test. There must be no symbol
only! Do not cover the display and do not touch the indicated on the LC display  during the counter-test.
contact electrodes ! If in both cases the LC display  indicates the "R"
symbol, the earthing is too weak!
4.1 How to test the phase at AC voltage Note:
- The voltage tester must be used only within the The reading of the LC display  might be impaired
nominal voltage range of 12 V up to AC 400 V! due to unfavorable light conditions, protective clothing
- The phase test is possible in the earthed mains or in insulated locations.
from 230 V onwards!
- Firmly grasp the handle of test probe L1 . 7. General maintenance:
- Place the contact electrode  of test probe L1 Clean the exterior of the housing with a clean dry
against the relevant point of the unit under test. cloth (exception: special cleansing cloths). Do not use
- Never connect the voltage tester to voltage for solvents and/or abrasives to clean the voltage tester.
longer than 30 seconds (maximum permissible
8. Technical data:
operating time = 30 s)!
- If the "R" symbol appears on the LC display , - Guideline for two-pole voltage testers:
the tester is in contact with the live phase of an IEC 61243-3
AC voltage on this point of the unit under test. - Protection class: IP 64,
IEC 60529 (DIN 40050), also for outdoor use!
- Nominal voltage range (voltage class A): 12 V to
AC 400 V/ DC 750 V
- Internal resistance, measuring circuit: 180 kΩ,
parallel 4.7 nF (2.35 nF)
- Internal resistance, load circuit – both push
buttons actuated!: approx. 3.7 kΩ...(150 kΩ)
- Current consumption, measuring circuit:
max. I 3.3 mA (400 V ) AC/ 4.4 mA (750 V) DC
n
- Current consumption, load circuit – both push
buttons actuated!: I
- Polarity indication: LED +; LED -
(indicating handle = positive polarity)
and of - Indicating steps LED: 12 V+*, 12 V-*, 24 V+, 24 V-,
50 V, 120 V, 230 V, 400 V and 750 V (*: only with
both push buttons actuated)
and L2 against the relevant points of the - max. indicating errors: U
- Nominal frequency range f: 0 to 60 Hz
Phase and phase-sequence indication 50/ 60 Hz
- Phase and phase-sequence indication: ≥ U
- Vibrating motor, starting: ≥ U
- max. permissible operating time: ED = 30 s (max.
30 seconds), 240 s pause
- Weight: approx. 160 g
- Connecting cable length: approx. 900 mm
- Operating and storing temperature range: -10 °C
. With the voltage increasing, the to +55 °C (climate category N)
- Relative air humidity: 20 % to 96 % (climate
category N)
and L2 - Reverse control times (thermal protection):
voltage
230 V
400 V
750 V
and of
and L2 against the relevant points of the
.
.
and L2
and of
and L2 against the relevant points of the
0.2 A (750 V)
s
± 15 %, ELV U - 15 %
n n
230 V
n
230 V
n
time
30 s
9 s
2 s