22
L1.
c. Clamp on to the wire of L2. The current should flow from the front of the tester to
the side of the battery cover.
d. Press the
▲
button to select 3 phase power system. A symbol of 3Φ will be
shown in LCD.
e. Press the FUNC button to select phase angle function. The LCD will show L123
to indicate the clockwise sequence. Or the LCD will show L132 to indicate
counter clockwise sequence.
IV. SET THE CT RATIO
To set the CT ratio, hold the FUNC button, and then turn the power on. A symbol
of “CT” will be shown in LCD. The default value of CT is 1. To change the CT
ratio, users can press the
▲
or
▼
button to increment or decrement the value by
1. Holding the
▲
or
▼
button will speed up the process of incrementing or
decrementing.
To exit the setting of CT ratio, press the FUNC button.
V. DISABLE AUTO-POWER-OFF
The tester has an auto-power-off function. The tester will turn the power off after
power is turned on for 30 minutes. To disable the auto power off function, hold
the FUNC button for more than 2 seconds. A beep sound will be heard to
indicate that the auto power off function is disabled.
For Model 23, users can not disable the auto-power-off function in the
measurement of THD.
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