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6. Carrying out measurements
6.2 Voltage test
• Connect both probes to the object under test.
• The voltage is indicated by LEDs (3).
• Buzzer sounds (only if the tester has batteries
inserted) when a threshold voltage of approx.
40VAC/VDC is exceeded. At the same time SP led
will be on.
• Voltage polarity is indicated in following manner.
• AC: + and – 12V LED are on
• + DC: + 12V LED is on
• – DC: – 12V LED is on
When the L2 + (2) probe is the positive
potential (negative), the Polarity indication LED
indicates “+ DC” (“– DC”).
If using the tester without batteries during a
voltage test the buzzer and the single pole LED will
not operate.
6.3 Single-pole phase test
Function of this test may not be fully achieved
if the insulation condition/ grounding conditions of
user or of the equipment under test aren’t good
enough. Verification of live-circuit should not be
dependent on this Single-pole phase test only, but
on the voltage test (See 6.2).
• Hold the tester firmly in your hand. Connect
the “L2 +” (2) probe to the object under test. The
single-pole LED (4) lights up and buzzer sounds
when a voltage of approx. 100V AC or more exists
in the object under test. (Pol≥100VAC).
This function works only with good working
batteries installed.
6.4 Continuity test
Make sure the object under test is not live.
• Connect both test probes to the object under
test. RX (continuity) LED (5) lights up and buzzer
sounds continuously to indicate continuity when
resistance between tips is less than 500kΩ.
This function works only with good working
batteries.
6. Carrying out measurements
6. Carrying out measurements
6.1 Preparation and Safety
For any tests the safety references have to be
respected as mentioned in Section 2. Prior to any
usage, a functional test has to be carried out.
Test leads and test probes must only be
touched behind the finger guards away from the
probe tips. Imperative: avoid direct contact of the
test probe tips.
Safety advice
• Depending on the internal impedance of the
voltage detector there will be a different capability
of indicating the presence or absence of operating
voltage in case of the presence of interference
voltage.
• A voltage detector of relatively low internal
impedance, compared to the reference value of
100 kΩ, will not indicate all interference voltages
having an original voltage value above the ELV level.
When in contact with the parts to be tested, the
voltage detector may discharge temporarily the
interference voltage to a level below the ELV, but it
will be back to the original value when the voltage
detector is removed.
• When the indication “voltage present” does not
appear, it is highly recommended installing earthing
equipment before work.
• A voltage detector of relatively high internal
impedance, compared to the reference value of
100 kΩ, may not permit to clearly indicate the
absence of operating voltage in case of presence of
interference voltage.
• When the indication “voltage present” appears
on a part that is expected to be disconnected of
the installation, it is highly recommended confirming
by another means (e.g. use of an adequate voltage
detector, visual check of the disconnecting point of
the electric circuit, etc.) that there is no operating
voltage on the part to be tested and to conclude
that the voltage indicated by the voltage detector is
an interference voltage.
• A voltage detector declaring two values of
internal impedance has passed a performance
test of managing interference voltages and is
(within technical limits) able to distinguish operating
voltage from interference voltage and has a means
to directly or indirectly indicate which type of
voltage is present.
Function Test/Self Test
• Insert batteries in tester.
• Test the voltage tester on a known source.
• Connect test probes. An acoustic sound must be
audible and the RX (continuity) LED (5) must be off.
• For checking of RX touch the probe tips together.
An acoustic sound must be audible and the RX
(continuity) LED must be on
The tester must no longer be used if one or
several functions fails or if no functional reliability
can be detected.
When the tester is working without batteries
RX (continuity) LED (5) will not operate and acoustic
sound will be OFF, also the SP (dangerous) LED (4)
will not operate.
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