15
8.10 Measuring Active Power
• Do not apply more than 1000 VDC or 1000 Vrms (1414.2 Vpk).
• Do not apply more than 600 ADC or 600 Arms (848.5 Apk).
8.10.1 Single phase 2 wire
<1> Turn the function switch to the Active power
position.
<2> Connect the red test lead to Line (+) and the black test lead to N (-).
<3> Squeeze the open/close lever to open the jaws and clamp them
onto the wire under test. (Ensure that the jaws are properly closed
and the conductor runs thru the center of the clamp.)
<4> When measuring Active power:
Use the cursor key to select “W” and then
press the ENTER key to confirm.
When measuring Power factor:
Use the cursor key to select “PF” and then
press the ENTER key to confirm.
ENTER
"PF"
"W"
600V
+Line
-N
600A
No.1
W1
Power source
Load
[NOTE]
• The “ + ” symbol on the jaw must face on the power source side.
• In Auto sense mode, The CW10 can detect ACW or DCW automatically.
Overload (over range) Description
OL.U:
Voltage overload
OL.A:
Current overload
OL.UA:
Both Voltage and current overload.
OL kW, -OL kW:
Active Power > 1000 kW or < -1000 kW.
Active power polarity
Non-display (+):
Indicates the power flows from the power source to the load.
Minus (-):
Indicates the power flows from the load to the power source.
Power factor polarity
Non-display (+):
The phase of the current signal is lagging behind
the voltage signal (inductive load).
Minus (-):
The phase of the current signal is leading the
voltage signal (capacitive load).
