Connectivity advantages

Support Extra sensor

333mV CT

Rogowski coil

Programmable digital output

Alarm

Relay

Communication

Modbus RS485 with screw terminals allows connection to a daisy chain

Display

2.0 inch TFT screen 220*170 dots

Sampling Frequency

8kHz

Specification

Model

ME631

Product component type

Multifunction power meter

Poles description

1P+N

3P

3P+N

Device application

Power analysis

Tariff meter

Input type

External CT(333mV only)

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

L*W*D:76*95*71mm

Maximum value measured

Parameter

Range

Resolution

Voltage

9999.9A

0.1

Current

9999.9V

0.1

Power

9999W

1

Power factor

0.999

0.001

THD

99.9%

0.1%

Energy

9999.9KWH

999.99MKWH

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,AVG)

Energy

EP,EFQ,ES,Freq(Per Phase,SUM)

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

Calibration

Current 

Per phase,all

Voltage

Per phase,all

Power factor

Per phase,all

Energy 

Reset to “0”

Communication

Transmission mode

RS485 port,Half duplex

RS485 link 

2 wires,GND

Communication protocol

MODBUS RTU

Settings

Communication address

1 to 247

Baud rate(communication speed)

1200 to 57600 baud

Parity

Non

Environmental conditions

Operating temperature

-25℃ to +55℃

Storage temperature

-40℃ to +85℃

Humidity rating

5 to 95% RH at 50℃(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

Port number

Port name

Port function

Remarks 

1

I11

A-phase current input positive

A-phase current

2

I12

A-phase current input negative

3

I21

B-phase current input positive

B-phase current

4

I22

B-phase current input negative

5

I31

C-phase current input positive

C-phase current

6

I32

C-phase current input negative

7

Vn

N-phase voltage input

Voltage input

8

V3

C-phase voltage input

9

V2

B-phase voltage input

10

V1

A-phase voltage input

11

D0

RS485 A

RS485 communication

12

D1

RS485 B

13

0V

RS485 GND

14

S1

Relay-ON

Relay output

15

S0

Relay-MID

16

S2

Relay-OFF

17

OP1

reserved

Option function

18

OP2

reserved

19

N

AC(N)/DC(-)

Power

85~265V AC/DC

20

L

AC(L)/DC(+)