Extech Instruments Extech 380976 User Manual page 12

4. The power clamp will process these three sets of data (W W W ) and show the result on the LCD.
L1, L2 L3
The WL symbol will be shown to indicate the 3 φ 4W power (refer to diagram).
123
The 3 φ 4W power value in watts is now stored in the meter's memory.
5. To read a single data record, use the "HOLD" key to select WL1, WL2, WL3 or WL123
display then press the "RANGE" key to select KW+HP (Horse Power), KW+PF (Power Factor),
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