Major tech MT476, Инструкция по эксплуатации

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The applied voltage is shown on the LCD display. The Low-Imp LED
signals low impedance measurement.
The maximum permitted duty cycle in low impedance operating mode
is 5 seconds for voltages up to 250V and 3 seconds for voltages up to
690V. When this time has lapsed, wait for 10 minutes
9. ROTATING FIELD DIRECTION DISPLAY
The voltage tester can show the direction of the rotating field with three-
phase systems. Hold the voltage tester by the handles and provided. Never
touch the device beyond the handle ends. Hold the two test tips onto the
measuring points to be tested. Test tip corresponds to L1, and test tip
corresponds to L2. The applied voltage and the rotating field direction is
shown on the LCD display The rotating field symbols (D) show the
corresponding rotating field direction (L = anticlockwise/ R = clockwise).