AC Power Measurements

1Φ KW, KVA, KVAR, Power Factor & Phase Angle Measurement

1. Set the rotary switch to the ‘KW/KVA’ position.

2. Insert the test leads to the meter as

follows: Black to ‘COM’ and Red to ‘V’.

3. Connect the black lead to the neutral line.

4. Connect the red lead to the power line and clamp onto the same lead to which the red lead is connected.

5. The meter selects the best range automatically.

6. Select the desired display combination using the RANGE key. Press RANGE to scroll through the following combination displays:

ƒkW and HP (horsepower)

ƒkW and PF (power factor)

ƒkW and KVAR (reactive power)

ƒKVA and phase angle (θ)

ƒV and A

Note that LEAD and LAG icons are also displayed on the LCD to inform the user that the voltage is leading or lagging the current with regard to phase.

Note: Allow 2 seconds after each RANGE key press for the meter to update the display.

1 HP = 746 Watts

PF = KVAKW = cosθ

KVA (Apparent Power) = (V*A) / 1000

KVAR (Reactive Power) = (KVA)2 − (KW)2 = KVA * sinθ

NOTES

1.The ‘+’ sign printed on the meter must face the power source for best accuracy.

2.If the device under test is a switching mode power supply, the KW, PF, and Phase angle measurements may not be accurate.

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V3.1

6/08