Opal DT-9121, Руководство по эксплуатации

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8
z
The voltage is displayed via LEDs.
z
For AC voltages the “AC“ LED is illuminated .
z
For DC voltages the “-DC or +DC“ LED is illuminated.
z The instruments are equipped with an LED row comprising:
±12,24,36,50,120,400,690 For DC voltage; 12, 24, 36, 50,
120, 400 for AC voltage. the polarity of the voltage
displayed refers to the instrument test probe (+).
z Due to technical reasons the instrument cannot effectuate
an automatic switch-on for DC voltages within the range of
approx. 0V to –/+8V.
3. Single-pole phase Test
z The single-pole phase test is only possible when batteries
are installed and in good condition.
z The single-pole phase test starts at an AC voltage of
approx. 100V (pole >100V AC).
z When using single-pole phase tests to determine external
conductors the display function may be impaired under
certain conditions (e.g. for insulating body protective
equipment on insulation locations).
z The single-pole phase testing is not appropriate to
determine whether a line is live or not. For this purpose, the
double-pole voltage test is always required.
z Connect both test probes with power source.
z The LED (5) is illuminated in the display.
4. Continuity Test
The continuity test is only possible when batteries are installed and
in good condition. A signal sound is audible for continuity and the
LED for continuity LED (9) is illuminated.