12/ 2008
DUSPOL
®
digital LC
8
three-phase mains.
- Firmly grasp the insulated handles
A
and
B
of the
test probes L1 and L2 (leakage current for phase test
via handle L1
A
!)
- Place the contact electrodes
of the test probes L1
A
and L2
B
against the relevant points of the unit
under test.
- With an applied voltage of at least 6 V, the voltage
tester switches on automatically and the display indi-
cates the voltage value.
- The three-digit display has to indicate the voltage of
the external conductor.
- When contacting the two contact electrodes
with
two phases of a three-phase mains connected in
clockwise rotation, the LC display
4
indicates the
symbol “ “ (phase-sequence clockwise)
9
. If for
two phases the rotation is counter-clockwise, the LC
display indicates the symbol “ “ (phase-sequence
counter-clockwise)
8
.
The phase-sequence test always requires a counter-test!
For this purpose, the measurement has to be performed
again with reversed contact electrodes
. During the
counter-test, the LC display must indicate the opposite
phase-sequence. If in both cases, the LC display indi-
cates a clockwise phase-sequence, the earthing is too
weak!
Note:
The reading of the LC display
4
might be impaired due
to unfavorable light conditions, protective clothing or in
insulated locations.
7. How to test an electrically conductive connection
(continuity check)
- The continuity check must be performed on the rele-
vant points of a “dead” (not being under voltage)
unit under test. If necessary, the capacitors must be
discharged.
- The necessary test voltage is supplied by means of
the power supply (2 x 1.5 V batteries) integrated in
the test probe L1
A
.
- The test is possible within the range of 0 - 200 kΩ.
- Place the test probes L1
A
and L2
B
with the con-
tact electrodes
against the relevant points of the
unit under test.
- In the event of contact between an electrically con-
ducting connection and the contact electrodes
, a
signal is given off and the symbol
7
shown on the
LC display
4
.
- If voltage is pending at the measuring point, the vol-
tage checker switches automatically to voltage check
and displays the voltage (see sections 4. and 5.).
8. Battery replacement
Do not set the voltage tester under voltage with the bat-
tery compartment being open!
The energy supply of the DUSPOL
®
digital LC is done by
means of two built-in micro batteries (LR03/ AAA). Battery
replacement is necessary as soon as the display shows
the battery symbol “
“ (weak battery)
. The symbol
appears in case the battery voltage is below 2.75 V.
Indicating the battery voltage
Switch the voltage tester on by briefly pressing the push
button
of test probe L1
A
. After approx. 10 seconds,
the value of the battery voltage is indicated for 1 second.
(Example:
)
How to replace the batteries:
Take a screw driver and open the battery compartment
(next to the cable outlet) by a ¼-turn in direction of the
arrow (counter-clockwise). The slot is now vertical and
the battery compartment with the batteries can be remo-
ved.
Remove the discharged batteries from the battery com-
partment. Insert the new batteries with correct polarity
(see marking) into the battery compartment. Put the bat-
tery compartment with the batteries back onto the handle
and lock it by ¼-turn in clockwise direction (slot must be
horizontal and the marking points are opposite!). Make
sure not to damage the O ring (art.-no. 772897). If neces-
sary, it has to be replaced.
Battery disposal:
Do not dispose of batteries with the household garbage.
You can return used batteries to public collection facilities
in your community area or return them to any retail outlet
selling similar batteries.
9. Technical data:
- Guideline: IEC 61243-3
- Over voltage category: CAT IV 500 V, CAT III 690 V
- Protection class: IP 64, IEC 60529 (DIN 40050)
IP 64 means: Protection against access to dange-
rous parts and protection against solid impurities,
dustproof, (6 - first index). Splash proof, (4 - second
index). Can also be used in case of precipitation.
- Nominal voltage range:
6 V up to AC 690 V/ DC 750 V
- Internal resistance, measuring circuit:
PTC 15 kΩ ≥ 360 kΩ
- Internal resistance, load circuit – both push buttons
actuated!: approx. 3.7 kΩ...(150 kΩ)
- Current consumption, measuring circuit:
max. < 3.5 mA AC/ DC
- Current consumption, load circuit - both push buttons
actuated!: I
s
0.2 A (750 V)
- Polarity indication: LCD ; –
- Voltage indication, continuous 6 - 750 V
- Voltage range I: up to approx. 80.0 V (88.8)
- Voltage range II from approx. 80 V (888) onwards
- max. indicating errors:
± 2 % of Voltage range
20 - 150 Hz sinusoidal or DC, ELV U
n
- 15 %
- Nominal frequency range f: 0 up to 150 Hz
- Phase and phase-sequence indication: ≥ U
n
230 V,
50/ 60 Hz
- Vibrating motor, starting: ≥ U
n
230 V
- Test current, continuity check: max. 2 μA
- Testing range, conducting resistance: 0 - 200 kΩ
- Sound level acoustic signal: 55 dB
- max. permissible operating time: ED = 30 s (max. 30
seconds), 240 s pause
-
Device switch-on at measuring voltage: ≥
6 V
- Device switch-on (manual): by means of push button
L1
A
- Built-in testing function: activation by push button L1
A
and short-circuit of the contact electrodes
- HOLD function, activation press button
≥
1.5 s
- Battery: 2 x micro, LR03/ AAA (3 V)
- Weight: approx. 200 g
- Connecting cable length: approx. 900 mm
- Operating and storing temperature range:
- 10 °C up to + 55 °C (climate category N)
- Relative air humidity: 20 % up to 96 % (climate cate-
gory N)
- Reverse control times (thermal protection):
voltage/ time: 230 V/ 30 s, 400 V/ 9 s, 750 V/ 2 s
Attention!
The voltage tester cannot be operated with the batteries
being empty! Voltage checking without battery is possi-
ble upwards of a voltage of ≥ 50 V. Remove the batteries
from the device at a longer storage!
10. General maintenance:
Clean the exterior of the housing with a clean dry cloth
(exception: special cleansing cloths).
Should such electrolyte contamination or white deposits
occur near the battery or the battery housing, these must
also be removed with a dry cloth.
11. Environmental notice
At the end of the product’s useful life, please
dispose of it at appropriate collection points
provided in your country.
Содержание DUSPOL digital LC
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