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INDUCTIVE LOAD: A negative phase angle indicates that the current signal lags the voltage
signal. A negative phase angle also indicates an inductive load.
CAPACITIVE LOAD: A positive phase angle indicates that the current signal leads the voltage
signal. A positive phase angle also indicates a capacitive load.
NOTE: The "+" sign printed on the clamp jaw must face the power source for correct readings.
φ
3
Balanced Power Measurements
Power (W) and Power Factor (PF) Dual Display
1.
Apply power to the meter with the jaw clear of any
conductors.
2.
Set the rotary switch to the 3φ position.
3.
The LCD will show 3φ3W, 3φ4W, and BAL
symbols to indicate balanced mode.
4.
If the watt reading is not zero, press the DCA/DCW
ZERO button once to zero reading
5.
Insert the test leads into the input terminals.
6.
Select one phase (R or L1) as COM and Connect
the COM (black) terminal to the same phase just
selected (R or L1).
7.
Connect another test lead to the second phase (S or L2). See Fig. 6.
8.
Clamp on to the third phase (T or L3).
9.
The power clamp will automatically select proper range.
10. Read the Watt and PF values displayed on the LCD.
11. To view the KVA and KVAR data, press the NEXT button.
12. To view V and A, press the NEXT button again.
13. To return to the W and PF display, press the NEXT button again.
KVA/KVAR Dual Display
Follow steps 1 through 10. in the above section and press the NEXT button. Wait approx. 2 seconds
for the LCD to display the KVA and KVAR.
Voltage (V) and Current (A) Dual Display
Follow steps 1 through 10 in the above section and press the NEXT button twice. Wait approx. 2
seconds for the LCD to display Voltage (V) and Current (A).
NOTE: Specific selection of each phase is not required in 3φ balanced power measurement
mode. As long as each test lead 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 if a load is capacitive or inductive, refer to the section entitled "Phase Angle
Measurements".
φ
3
3W Unbalanced Power Measurements
Two measurements W
1. First measure W
RS
a. Apply power to the meter with the jaw clear of any conductors.
b. Set the rotary switch to the 3φ position.
c. Press the 3φ button once, the 3φ3W symbol will display on the LCD. At this moment, the W
symbol flashes prompting the user to begin measurement of W
d. If the watt reading is not zero, press the DCA/DCW ZERO button once to zero reading
e. Insert the test leads into the input terminals.
(or W
) and W
(or W
RS
L1L2
TS
(or W
)
L1L2
3 Phase 4 Wire
R(L1)
S(L2)
T(L3)
N
Figure 6
) are required. Refer to Fig. 7.
L3L2
www.burntec.com
Current >
3-phase
Bal. Load
RS.
RS
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