E-Mon E-PS-S-HV-RTU - Manual (Page 230)

Appendix G Data Scales
230 PowerSmart Socket Power Quality Meter
Appendix G
Data Scales
The maximum values for volts, amps and powers in the
PowerSmart Socket PQM setup and in communications are
limited by the voltage and current scale settings. See
Device
Options and Mode Control in Chapter 5 on how to change the
voltage and current scales in your meter.
The following table shows the meter data scales.
Scale Range
Maximum voltage (V max) Voltage scale × PT Ratio, V 1
Maximum current (I max) Current scale × CT Ratio, A 2, 3
Maximum Power (P max) 4 V max × I max × 2, W
Maximum frequency 100 Hz
1 The default voltage scale is 144V (120V+20%).
2 CT Ratio = CT primary current/CT secondary current
3 The default current scale is 4 × CT secondary (4.0A with 1A
secondaries and 20.0A with 5A secondaries).
4 Maximum power is rounded to whole kilowatts. With
PT=1.0, it is limited to 9,999,000 W.