WiFi Meter Digital Electric Meter Me437 3 Phase Energy Meter Rogowski Coil Electrical Instruments

Product Description

 

 

ME437 Three-phase Power Meter

 

Connectivity advantages
MODEL	ME437-SD
Support Extra sensor	333mV CT Rogowski coil
Programmable digital output	Relay
I/O function	1*digital output
Power	85~265V AC/DC
Storage	1GB SD card(Max 4GB) (save intervals 1mins default)

Feature
 

Specification
Model	ME437
Product component type	Multifunction power meter
Poles description	3PH4W  3PH3W 1PH2W (L-N); 1PH2W(L-L);1PH3W(L-L-N)
Device application	Power analysis Energy meter
Input type	External CT(333mV only) And External Rogowski coil
Display	35 inch TFT screen display
Sampling rate	8k samples per second
Mounting mode	Panel mounting
Harmonic	52th Max
Display characteristics
Feature		3.5 Inch TFT screen display 320*480
Mechanical characteristics
Weight		350g
Dimension		L*W*D:96*96*99mm

Display

Maximum value measured
Parameter	Range	Resolution
Voltage	0.001V 999.9V 999.9kV 999.9MV	0.1
Current	999.9A 999.9kA	0.1
Power	999.9kW 999.9MW	0.1
Power factor	0.999	0.001
THD	99.9%	0.1%
Energy	999.9WH 999.9.KWH 999.9MWH 999.9GWH	0.1KWH 0.01MKWH

  

Instantaneous rms Values
Voltage	U,UTH2,UTH3,UTH4(Per Phase, AVG)
Current	I,ITHD2,ITHD3,ITHD4(Per Phase, AVG)
Power	P,FQ,S,PF(Per Phase, SUM)
Energy	EP,EFQ,ES,Freq(Per Phase, SUM) over 999.9MWh, value reset
UTHD(%)	UTHD,THD2,THD3,THD4(Per Phase, AVG)
ITHD(%)	ITHD,THD2,THD3,THD4(Per Phase, AVG)
DPF	DPFa,DPFb,DPFc, AVG
Update rate
Data acquisition rate	400ms
Display update rate	0.5s
Calibration
Current	Per phase, all
Voltage	Per phase, all
Power factor	Per phase, all
Energy	Reset to "0"  EP,EQ,ES all phase
Pulse Output
Pulse rate changeable by rated current	Rated current :100A/500A/1000A/5000A IMP/KWH    :300/60/30/6

MODBUS RS485
 

Communication
Transmission mode	RS485 port,Half duplex
RS485 link	3 wires
Communication protocol	MODBUS RTU
Settings
Communication address	1 to 247 (default 1)
Baud rate(communication speed)	1200 to 57600 baud (default 9600)
Parity	Even(default),Old,None
Data bit	8
Stop bit	1

Certificate

Environmental conditions
Operating temperature		-25ºC to +55ºC
Storage temperature		-40ºC to +85ºC
Humidity rating		5 to 95% RH at 50ºC(non-condensing)
Pullution degree		2
Overvoltage category		III,for distribution systems up to 277/480VAC
Dielectric withstand		As per IEC61010-1, Doubled insulated front panel display
Altitude		3000m Max
IP degree of protection	IP20 conforming to IEC 60629
Colour	White
Contractual warranty	12months
EMC
Electrostatic discharge		Level IV(IEC61000-4-2)
Immunity to radiated fields		Level III (IEC61000-4-3)
Immunity to fast transients		Level IV (IEC61000-4-4)
Immunity to surge		Level IV (IEC61000-4-5)
Conducted immunity		Level III (IEC61000-4-6)
Immunity to power frequency magnetic fields		0.5mT (IEC61000-4-8)
Conducted and radiated emissions		Class B (EN55022 )
Standard compliance
EN 62052-11,EN61557-12,EN 62053-21,EN 62053-22,EN 62053-23,EN 50470-1,EN 50470-3, EN 61010-1,EN 61010-2,EN 61010-031

Specification

Measurement accuracy
Current	0.5% from 1% to 120%(don't ensure accuracy when <10A)
Rated current	500A(0.5% from 10A to 600A) 3000A(0.5% from 30A to 3600A) 10kA(0.5% from 100A to 12kA)
Rogwoski coil specification	100A	MRC-16
	600A	MRC-36
	1000A	Y-FCT-200 or Y-FCT-350 or NRC-100
	3000A	NRC-150 or Y-FCT-510
	6000A	NRC-200 or Y-FCT-800
Voltage	0.2% from 80V to 400V(or 100 to 500V)
Power factor	±0.005 from 10% to 120%
Active/Apparent Power	IEC62053-22 Class 0.5
Reactive power	IEC62053-21 Class 2
Frequency	0.01% from 45 to 65Hz
Active energy	IEC62053-22 Class 0.5s
Reactive energy	IEC62053-21 Class 2
Measurement arrange
Measured voltage	80V to 400V AC(or 100 to 500V)
Frequency range	50/60Hz
Input-current characteristics
Primary current range	100A		0.5A to 120A
	600A		0.5A to 720A
	1kA		1A to 1200A
	3kA		3A to 3600A
	6kA		6A to 7200A
Measurement input range	1/2^25mV-333mV
Permissible overload	600mV for 10s/hours

 

Control Power
AC/DC	85 to 265V AC/DC, 3.5W
Output
Digital output	1×digital output(2 ports) from 1pcs relay,rated 24V/800mA, 75mΩmax, 2.5kVrms insulation(controlled by Modbus) Maximum Switching Power : 0.5A, 125VAC 1A, 30VDC
Wire diameter for terminals
Connections-terminals	Screw terminals 2.5mm^2,interval 5.08mm
Alarm
Setting	U and I Each phase,AVG
Output form	Relay

Data Record
The power meter records data to SD card, the following table lists data record of the power meter.

Record
Record interval	1s to 9999s(default 1min)
Record format	csv
Record capacity	Micro SD card 1GB(default)
	Store about 1K Bytes data each time
	record 2 years (1min & 1GB)
Record data	Date&time, Voltage(V),UTHD(%),Current(A),ITHD (%), ITHD3(%),ITHD5(%), ITHD7(%), ITHD11(%), ITHD13(%), ITHD3(A), ITHD5(A), ITHD7(A), ITHD11(A), ITHD13(A) Frequency(Hz), PF(power factor), Active Power(W),Reactive Power(Var),Apparent Power(Va), Active Energy(Wh),Reactive Energy(Varh),Apparent Energy(Vah) Current Demand(A),Current Peak Demand(A)&Date Total Active Power Deamnd(W) Total Active Power Peak Deamnd(W)&Date Total Reactive Power Deamnd(W) Total Reactive Power Peak Deamnd(W)&Date Total Apparent Power Deamnd(W) Total Apparent Power Peak Deamnd(W)&Date

Wiring

*:Rogowski coil secondary output voltage can not over 333mV rms.
^:CT must be voltage output,secondary output can not over 333mV rms.
 

3PH4W no VT

3PH3W no VT

3PH3W with VT

 

1PH2W L-N

    1PH2W  L-L

1PH3W L-L-N