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7. Judge phase sequence of the three-phase four-wire system
Turn the rotary switch to U1U2, connect phase A to jack U1, connect
phase B to jack U2, connect Zero Line to the two input loop jacks “±”. If the
measured phase value is approximately 120°, it is positive phase sequence. If
the measured phase value is approximately 240°, it is negative phase
sequence.
8. Judge inductive load and capacitive load
Turn the rotary switch to U1U2. Connect load voltage to input jack U1, and
connect load current into jack I2 with measuring clamp. If the phase value
ranges from 0 °~ 90 °, then the measured load is inductive ; If the phase value
ranges from 270 °~ 360 °, then the measured load is capacitive.
VIII. Adjust the display
If you want to change the angle of the display screen, press the lock button
on the top of the display screen, and adjust the screen to the most appropriate
angle for observation.
IX. Battery replacement
When the symbol
appears on the LCD, it indicates the battery
power is low. You should replace the battery.
Before replacing the battery, please disconnect the input signal and turn off
power supply. Loosen the screw secured on the rear case and remove them,
then you can replace the battery.
Summary of Contents for SMG2000B
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