Overview Of Parts - VOLTCRAFT VC-37 Bedienungsanleitung

Please pay attention to the following symbols and labels:
L1 + Test probe for phase L1, positive potential at DC
L2 - Probe for phase L2, negative potential at DC
Indicator ~ V/AC = Alternating voltage
Display + Positive potential at test probe L1 + (V/DC)
Display - Negative potential at test probe L1 + (V/DC)
Display + - AC voltage (both indicators for + and - are on)
12/24/50/120
Display of rated voltage range in volt (V)
230/400
f Rated frequency range of electr. voltage
Is Test current is specified in mA (milliampere)
W Electrical test load in watts
Hz Electrical frequency (Hertz)
T Permitted operating temperature range in ° Celsius
DC Maximum duty cycle in seconds (s)
Recovery time Minimum operating pause after a test cycle in seconds (s)
Date Year of manufacture
Warning of dangerous voltage (>50 V/AC, >120 V/DC),
Device and equipment for live works. Personal protective measures are
essential.
Protection class 2 (double or reinforced insulation/ protective insulation)

Overview of parts

3
2 4 5 6
L1
L2
-
+
400
230
120
50
1
36
24
12
-
+
~ ~
TEST
1 Handle probe tip L2 (-)
3
2 P lastic protective sheaths,
for CAT III
2
3 4 mm terminal screws to
test outlets from the front
side (built-in outlet! CAT II)
4 Probe tip L2 (-)
5 Handle grip barrier
6 Probe tip L1 (+)
7 L ED level indicator for
voltage ranges and polarity
8 Handle grip barrier
9 Test button for RCD test
10 Handle probe tip L1 (+)
11 Connecting cable
7
8
9
10
11
Performing tests and measurements
The two-pole voltage tester consists of the two test probes (4 and 6), a connecting cable (11)
and the indicator panel (7).
Always hold the voltage tester in a way, that you can look down onto the indicator panel.
Illuminated indicators may be adversely affected by strong light.
For DC measurements, the probe tip L1+ (6) is the positive pole, and the probe tip L2- (4) is
the negative pole.
The voltage tester will switch on automatically when the test starts (input level >6 V AC/DC),
and when the test has been completed, it switches off.
Always check that the voltage tester is functioning properly prior and after
employment. Measure a known voltage source (mains voltage 230 V/AC, for
example) first, and check the accuracy of the readouts. Discontinue use if one or
more indication ranges (7) fails to function.
If the meter does not display any function or individual indicator ranges are not
functioning, decommission the voltage tester. A defective voltage tester must not
be used.
Observe the regulations regarding work with electrical systems. Personal protective
equipment must be used when working on systems with dangerous electrical
voltage.
The maximum permitted duty cycle (ED) is 30 seconds. When this time has lapsed,
take a break of at least 10 minutes. When using the RCD test function, the operating
time is reduced. Observe the information in the technical data in this regard.
If the 'voltage present' indicator appears at a measuring point that is considered
to be disconnected from the system, it is strongly recommended that additional
measures be taken (e.g. a voltage test with reduced impedance, visual inspection of
the separation point in the electrical grid, etc.) to detect and determine the 'operating
voltage not present' status of the system component to be tested so that the voltage
indicated by the voltage tester is a fault voltage.
If the 'voltage present' indicator does not appear, it is strongly recommended that the
earthing device be inserted before starting work.
The following measurement functions can be conducted:
a) Two-pole voltage testing
Always hold the voltage tester by the handles designed for this purpose (1 and 10). Never
reach beyond the tactile barrier of the grip (5 and 8).
For voltage tests in the range of measurement category CAT III, the two insulating caps (2)
must be inserted over the test probes. The free contact surface of the probe tips is thus limited
to max. 4 mm. This prevents accidental short-circuits in confined test conditions (e.g. in junction
boxes).
Guide the two probe tips onto the measurement points to be tested. The voltage range is shown
in the increment display (7).
The light indicators (+) and (-) show the type of voltage and the corresponding polarity. If both
indicators (+) and (-) are lit at the same time, alternating current (~) is present. Polarity is only
indicated by means of the two LEDs.
When testing in-built sockets, the enclosed 4 mm screw adapters (3) can be screwed onto the
test probes (4/6). To do this, remove the two insulating caps from the test probes. This screw
adapter facilitates contact in the socket.
E nsure that your hand remains within the gripping area of test probe L1 (10) and that
you don't cover the display.
b) Low-impedance test/RCD test
The voltage tester can be used to reduce the measuring impedance by pressing the 'TEST'
button (9). The low measuring impedance increases the current load of the voltage tester. This
suppresses static phantom voltages and can simulate the triggering of a residual current circuit
breaker (RCCB/RCD).
Hold the voltage tester by the handles (1) and (10) provided. Never touch the device beyond
the handle ends.
To perform a low-impedance test on a circuit, contact the two test probes with the live measuring
points L1 and N.
Press the 'TEST' button. The measuring circuit is now loaded with a low impedance. The test
duration with reduced impedance is limited to max. 5 s (<230 V AC/DC) or max. 3 s (<400 V
AC/DC). A cooling phase of at least 10 minutes must be then observed.
To perform an RCD test, contact test probe L1 (6) with the live measuring point L1 and test
probe L2 (4) with the protective conductor.
When correctly connected to the live outer conductor "L1" and the protective conductor, the
voltage is displayed on the device. If there is no display, change the live measuring point with
test probe L1 (6). The voltage indicator must be lit for the RCD.
Press the "TEST" button.
The measuring circuit is now loaded with a low impedance. The test current is max. 0.2 A (1s)
and triggers a functioning 30 mA fault current circuit breaker.
The test duration with reduced impedance is limited to max. 5 s (<230 V AC/DC) or max. 3 s
(<400 V AC/DC). A cooling phase of at least 10 minutes must be then observed.
If the RCD does not trip, the electrical installation must be checked as a priority.