Connectivity advantages
MODEL	ME631
Support Extra sensor	333mV CT Rogowski coil
Programmable digital output	Alarm 3 Tariff
I/O function	1*relay output
Power	85~265V AC/DC
Rogwoski coil specification	85mV/[email protected]±0.5%

Specification
Model	ME631
Product component type	Multifunction power meter
Poles description	3PH4W 3PH3W 1PH2W (L-N) 1PH2W(L-L) 1PH3W(L-L-N)
Device application	Power analysis Tariff meter
Input type	External CT(333mV only) External Rogowski coil
Display	2.0 inch TFT screen display
Sampling rate	8k samples per second
Mounting mode	Clip-on
Mounting support	DIN rail
Harmonic	52th Max
Display characteristics
Dimensions (VA)		39mm x 32mm
Display resolution		220 x 170 dots
Mechanical characteristics
Weight		212g
Dimension		LWD:769571mm

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 999.9GWh,value reset
UTHD(%)	UTHD,THD2,THD3,THD4(Per Phase,AVG)
ITHD(%)	ITHD,THD2,THD3,THD4(Per Phase,AVG)
Update rate
Data acquisition rate	400ms
Display update rate	0.5s
Energy storage interval ( prevent losing energy when power off )	10mis(default)
Calibration
Current	Per phase,all
Voltage	Per phase,all
Power factor	Per phase,all
Energy	Reset to "0" EP,EQ,ES all phase
Record (if order please add -SD in model No.
Record interval	1s to 9999s(default 1min)
Record format	csv
Record capacity	1GB(default) record 3.5years in default
Record data	Voltage(V),UTHD(%),Current(A),ITHD(%),Frequency(Hz),PF(power factor),Active Power(KW),Reactive Power(KVar),Apparent Power(KVa), ActiveEnergy(KWh),Reactive Energy(KVarh),Apparent Energy(KVah)

Communication
Transmission mode	RS485 port,Half duplex
RS485 link	2 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

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

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	85mV/[email protected]±0.5%
Voltage	0.2% from 100V to 500V(L-L and L-N)
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	100V to 500V AC
Frequency range	50/60Hz
Input-current characteristics
Primary current range	Adjustable from 0.1A to 9999A
Measurement input range	1/2²⁵mV-333mV
Permissible overload	600mV for 10s/hours
Control Power
AC/DC	85 to 265V AC/DC, 3W
Output
Digital output	1×digital output(2 ports)(controlled by Modbus) 2.5kVrms insulation Maximum Switching Power : 10A, 277VAC 10A, 28VDC
Wire diameter for terminals
Connections-terminals	Screw terminals 2.5mm²,interval 5.08mm
Alarm
Setting	U and I Each phase
Output form	Buzzer,Relay

Port number	Port name	Port function	Remarks
1	I32	C-phase current input negative	C-phase current
2	I31	C-phase current input positive	C-phase current
3	I22	B-phase current input negative	B-phase current
4	I21	B-phase current input positive	B-phase current
5	I12	A-phase current input negative	A-phase current
6	I11	A-phase current input positive	A-phase current
7	RI	Relay input	Relay output
8	RO	Relay output	Relay output
9	B	RS485 B	RS485 communication
10	A	RS485 A	RS485 communication
11	Vn	N-phase voltage input	Voltage input
12	V3	C-phase voltage input
13	V2	B-phase voltage input
14	V1	A-phase voltage input
15	NC	Not Connected	Not Connected
16	N	POWER(-)	Power 85~265V AC/DC
17	L	POWER(+)	Power 85~265V AC/DC

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