1-Wire Ac Voltage Detection (Polarity) - HT HT7 Bedienungsanleitung

5.4.

1-WIRE AC VOLTAGE DETECTION (POLARITY)

 The maximum input for AC voltage is 690V. Do not measure higher
voltages to avoid risks of electrical shocks or serious damages to the
instrument.
 The 1-wire AC voltage mode should be used as a quick voltage
detection test with no voltage value displaying.

exceeds 50V, even if the batteries are low or have been removed
 The single-wire test is not suitable to measure voltage. For this purpose,
the two-wire voltage testing is necessary
1. Perform the preliminary Autotest (see § 4.3).
2. Connect the L2 probe to the object under test (see Fig. 5). The measurement is
performed only when probe is in contact to live conductors.
3. The instrument turns automatically on along with LEDs
detected from 100V to 690V, 50/60Hz. The display and bargraph values are not
significant in this test.
4. The instrument turns automatically off as soon as the measured voltage is lower than
100V AC.
5. While taking measurements in single-phase installations, the symbols
displayed. This is not a malfunction.
6. Press the key to switch on the white LED illuminator to perform measurements in
dark environments.
symbol is lighted up whenever the voltage between the probes
Fig. 5: 1-wire AC Voltage detection
CAUTION
EN - 9
and for AC voltage
or can be
HT7