Measurement Definitions; Reset Button; Watt-Hour Zero Function - FLIR Extech PQ3450-30 User Manual

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5.10 Measurement Definitions


V12, V23, V31 : Line Voltage
 V1, V2, V3 : Phase Voltage
 A1, A2, A3 : Line Current
 P1, P2, P3 : True Power of each phase (W)
 S1, S2, S3 : Apparent Power of each phase. (VA)
 Q1, Q2, Q3 : Reactive Power of each phase (VAR)
 P : Total True Power (W)
∑

S ∑ : Total Apparent Power (VA)
 Q : Total Reactive Power (VAR)
∑
 PF1, PF2, PF3 : Power Factor of each phase
 PF : Total Power Factor
∑
 PFH : Long Term Average Power Factor ( WH/SH )
 1, 2, 3 : Phase Angle of each phase
 WH : Watt Hour
 SH : Apparent Power Hour
 QH : Reactive Power Hour
 1 2W : Single phase/ two wire
 1 3W : Single phase/ three wire
 3 3W : Three phase/ three wire
 3 4W : Three phase/ four wire
 SEC : The sampling rate in seconds for the datalogger
 CT : Current transformer
 PT : Potential transformer

5.11 Reset Button

The Reset Button located on the right side of the meter allows the user to reboot the meter
if the display or keypad is locked.
5.12 Zero Adjustment for the 'Watt Hour' Function
Press and hold the "Exit" key for at least 6 seconds, the measurement values for "WH",
"SH", "QH" will reset to a Zero value.
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PQ3450-EU-EN-V1.2-05/12