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3.6 3f AC+DC Balanced Power Measurement
3.6.1. W + PF Dual Display
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3.7. 3f f f f f 3W (No neutral) AC+DC Unblanced Power
Measurment.
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a. Turn the power on without clamping on to any wire.
b. Set the rotary switch at 3f (refer to figure 6).
c. LCD will show 3f3W, 3f4W, and BAL symbols
indicate balanced power measurement.
d. If the watt reading is not. zero. press the DCA/DCW
ZERO button once to zero the watt reading
e. Insert the test leads into the input jack.
f. Select one phase (eg. R or L1) as COM and Connect
the test prod of COM (black) terminal to that phase
(eg. R or L1).
g. Connect another test prod to the second phase
(eg. S or L2).
h. Clamp on to the third phase (eg. T or L3).
i. The power clamp will automatically select proper range.
j. Read the Watt and PF values displayed in LCD.
k. To see KVA and KVAR. press the NEXT button.
I. To see V and A, press the NEXT button again.
m. To return to display of W and PF, press the NEXT button
again.
3.6.2. KVA + KVAR Dual Display
Follows steps from a to j in section 3.6.1 Then press the
NEXT once, and wait for 1.5 seconds. The LCD display
will show the values of KVA and KVAR.
3.6.3. V + A Dual Display
Follows, steps from a to j in section 3.6.1. Then press the
NEXT twice, and wait for 1,5 seconds. The LCD display
will show the absolute values of V and A.
NOTE : Specific selection of each phase is not required in 3f.
balanced power measurement. As long as each prod and the jaws
are connected to different phases, the reading is always correct.
The "+" sign printed on jaw must face the power source for accurate
measurement.
NOTE : To find out it load is capacitive or inductive, refer to section
3.5 Phase Angle Measurement for details.
4500 : 28-09-2012
Fig.8
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