Compact Multifunction Meter for Comprehensive Power Quality Assessment

Product Description

 

Product Description

AT280Y series digital multi-function power meters have powerful data acquisition and processing functions, with three-phase voltage, three-phase current, active power, reactive power, power factor, frequency, forward and reverse active/reactive power measurement and calculation functions, which can greatly reduce system costs, facilitate on-site wiring and improve system reliability.

Main features:

• Highly accurate power measurement,energy metering
• Modular design for flexible configuration of individual functions
• Adjustable voltage and current ratios
• Parameter settings permanently saved in case of power failure
• RS485 communication
• Adopt AC/DC dual-use power supply,high and low voltage isolation
• Segmented LCD display

Product Parameters

Measurement and metering
Voltage	Phase voltage, line voltage
Current	Three-phase current
Active power	Split-phase and total active power
Reactive power	Split-phase and total reactive power
Apparent power	Split-phase and total apparent power
Power Factor	Phase-to-phase and total power factor
Frequency	45-60Hz
Power measurement
active power	forward/reverse active power
Reactive power	Positive/reverse reactive power
Communication function
Communication protocol	MODBUS-RTU
Communication mode	RS485

Parameters			Value
Applicable grid			3 phase 4 wires, 3 phase 3 wires
Working power		Voltage range	AC/DC85~265V;DC18V~72V(Optional)
		Power consumption	<5VA
Accuracy Class			Active Power Class 1, others Class 0.5
Input	Voltage	Rated	AC 100V,220V,400V
		Power consumption	<0.4VA/Phase
		Impedance	≥200kΩ
	Current	Rated	AC 5A(0.02A-6A)
		Power consumption	<0.2VA/Phase
		Impedance	≥0.1Ω
	Frequency		45Hz~65Hz
	Switching input		Dry contact input, photoelectric isolation
Output	Switching output		Relay output;   can set any alarming power, default remote control
	Analog output		0~20mA/0~5V(Can be set)
	Digital communication interface		RS485/Modbus-RTU
	Pulse output		1~2 channels electrical energy pulse,Four-quadrant power metering
Environment	Temperature		Operation temperature: -20ºC~55ºC, Storage: -25ºC~70ºC
	Humidity		≤90%RH, non-condensing, no corrosive air
	Altitude		≤2500m
EMC electromagnetic compatibility test	Electrostatic discharge immunity test		GB/T 17626.2-2006:test level 4, test voltage 8kV
	RF electromagnetic field immunity test		GB/T 17626.3-2006:test level 3, test field strength of 10V / m
	Fast transient pulse group test		GB/T 17626.4-2008:test level 2, current voltage 1kV, other 500V
	Surge (shock) immunity test		GB/T 17626.5-2008:test level 4, test voltage 4kV
	RF field induction conducted harassment immunity test		GB/T 17626.6-2008:test level 3, test field strength of 10V / m
	Voltage transients, short interruptions and voltage changes in the immunity test		GB/T 17626.11-2008:current and voltage test error qualified
	Oscillation wave immunity test		GB/T 17626.12-1998:Class B ITE test, qualified