Measurement Definitions; Reset Button - Extech Instruments PQ3470 User Manual

5.15 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 : One phase by two wires
 1 3W : One phase by three wires
 3 3W : Three phases by three wires

3 4W : Three phases by four wires
 SEC : The sampling rate in seconds for the datalogger
 CT : Current transformer
 PT : Potential transformer
 Transient Reference :
 SDVP : Swell and Dip Voltage Percentage (used with Transient Reference Voltage)
5.16 – 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.
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