Feature summary

Parameter	PM1130H	EM6438H
Accuracy Class for Wh	Class 0.5	Class 1 Class 0.5
Accuracy Class for VARh	2.0	2.0
Accuracy Class for VAh	± 0.5%	± 1% ± 0.5
Sampling rate per cycle	32	32
Current: Per-phase and 3 phase average Calculated neutral current	ü	—
Voltage: V L-N - per-phase and 3 phase average V L-L - per-phase and 3 phase average	ü	—
Power Factor Per-phase and average	True PF	True PF
Frequency	ü	—
Power: Active power (kW) - Per-phase and total Apparent power (kVA) - Per-phase and total Reactive power (kVAR) - Per-phase and total NOTE: The meter can measure and display only one power parameter at a time based on the type of power programmed.	ü	ü
Energy: kWh, kVAh, kVARh (2 Quadrant) Delivered (Import / Forward) NOTE: The meter can measure and display only one energy parameter at a time based on the type of power programmed.	ü	ü
Demand parameters (kW, kVA, kVAR) Last demand Present demand Peak demand: Occurrence time in counter format for peak demand NOTE: The meter allowing setting of only one demand parameter at a time .	ü	—
3 Phase unbalance	Current Voltage	—
THD%: Voltage L-N Voltage L-L Current per phase	ü	—
Meter On hours Load Run hours Power Interruptions	ü	ü
Phase angle Per-phase (between Voltage and Current)	ü	—
Communication	RS-485 Modbus RTU	RS-485 Modbus RTU
Revolutions per minute (RPM)	ü	ü
Relay	ü	—
Load percentage	ü	ü