ME237 Three-phase multifunctional smart meter

Type

96*96 Panel Meter

Poles description

3PH3W ,3PH4W.

Application

Current,Voltage,Power,Energy and harmonic measurement

display screen

3.8 inch LCD segment code display screen.

Weight

259g

Dimension

L*W*D：8.1*8.1*3CM

Color

White and black

Model

ME237C

ME237V

ME237R

Current sensor type

1/5A CT

333mV CT

Rogowski coil

Advantage

Traditional electric meter

Support to voltage output sensor and Current clamp

Support to Rogowski coil directly connect without amplifier(Integrator)

Current

Model

ME237C

ME237V

ME237R

Primary Rated current

5A to 6kA

5A 100A 200A 500A

(Accept OEM)

600A

2500A

6000A

Secondary Rated input

5A

333mV

50mV/kA

85mV/kA

50mV/kA

Input channel  maximum value

7.5A

500mV

500mV

500mV

500mV

Current measurement Range

0.005~5A

0.005~500mV

2A to 600A

2.5A to 2500A

6A to 6000A

Recommended Sensor model

ACT ASCT

SCT-10(10mm   5A/333mV)

SCT-16(16mm 100A/333mV)

SCT-24(24mm 200A/333mV)

SCT-36(36mm 500A/333mV)

MRC-36

NRC-150

NRC-200

Photo

Voltage

Range

0~600VAC Phase to Phase Voltage

Maximum range

720VAC Phase to Phase Voltage

Digital Signal

Energy pulse output

Active energy pulse output, optocoupler isolation (5kvrms)

Relay output

One way electromagnetic relay output, including normally open and normally closed contacts, contact capacity: 3A 30V DC, 3A 250V AC

Digital input

2-way dry contact input, optocoupler isolation (5kvrms)

Communication

RS485 communication

One way RS485 communication interface

Interface type: two wire half duplex

Communication baudrate: 2400bps ~ 19200bps

Protocol: Modbus RTU

Power supply

Power Supply

95~265VAC/110~260VDC, 45~60Hz

Maximum power consumption

3.5VA

Phase Voltage

U1, U2, U3 and average value.

Line Voltage

U12, U23, U31 and average value.

Current

I1, I2, I3 and average value.

Power

Active power,Reactive power,Apparent power (total and per phase).

Energy

Active energy import,active energy export, reactive energy import, reactive energy export.apparent energy.

If it exceeds 9999999.9kwh, the energy value will be reset to “0” automatically.

Harmonic

The total harmonics of each phase of voltage and current.

Power Factor

Including power factor PF and fundamental power factor DPF (average value of each phase and three phases)

Grid Frequency

Synthetic frequency

Update rate

Data refresh rate

500ms

Harmonic

Voltage

Total harmonic phase

Current

Total harmonic phase

Max / min

Voltage

Per phase

Current

Per phase

Power

Active power,Reactive power,Apparent power (sum of all phases and three phases)

Unbalance degree

Voltage

Per phase

Current

Per phase

Demand / maximum demand

Current

Per phase

Power

Active power,  Reactive power,  Apparent power (sum of all phases and three phases)

Model

ME237C

ME237V

ME237R

Current measurement

±0.3%RDG

±0.5%RDG

±0.5%RDG

Guarantee range of current measurement accuracy

0.5% FS～100%FS

1% FS～100%FS

2% FS～100%FS

Voltage measurement accuracy

0.2%(30～600V AC)

Grid frequency

0.01%(45～65Hz)

Power factor

±0.005

Active and apparent power

IEC62053-22 level 0.5S

Reactive power

IEC62053-21 level 2S

Active energy

IEC62053-22 level 0.5S

Reactive energy

IEC62053-21 level 2S

Environment condition

Operating temperature

-25℃～+60℃

Storage temperature

-40℃～+85℃

Humidity range

5～95% RH, 50℃(non-condensing)

Class of pollution

2

Over voltage capability

CAT III 1000V, It is suitable for distribution system below 277 / 480VAC

Insulation strength

IEC61010-1

Altitude

3000m Max

Antipollution level

IP20（Meet the standard of  IEC 60629）

Quality guarantee period

12 months

EMC（electromagnetic compatibility）

Electrostatic discharge

Level CAT IV 600V (IEC61000-4-2)

Radiated immunity

Level CAT III 1000V (IEC61000-4-3)

EFT Electrical fast burst immunity

Level CAT IV 600V (IEC61000-4-4)

Surge immunity

Level CAT IV 600V (IEC61000-4-5)

Conducted disturbance immunity

Level CAT III 1000V (IEC61000-4-6)

Power frequency magnetic field immunity

0.5mT (IEC61000-4-8)

Conduction and radiation

Class B (EN55022 )

Measurement standard

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

1

Relay output

R1

Relay normally open contact

One relay output with normally open and normally closed contacts

2

R0

Relay common contact

3

R2

Relay normally closed contact

4

Pulse output

POA

Positive end of pulse output

Active power pulse output

5

N/C

N/A

6

POB

Pulse output negative terminal

7

Relay output

DI2

Digital input channel 2

One relay output with normally open and normally closed contacts

8

DIC

Digital channel common terminal

9

DI1

Digital input channel 1

10

RS485

GND

RS485 communication GND

RS485 communication

11

B

RS485 communication B

12

A

RS485 communication A

13

Power supply

N

Power supply（-）

Range

95~265VAC/110~260VDC, 45~60Hz

14

N/C

N/A

15

L

Power supply（+）

16

Voltage input

N

N-phase voltage input

Measurement voltage input channel

17

N/C

N/A

18

V3

Phase C voltage input

19

N/C

N/A

20

V2

Phase B voltage input

21

N/C

N/A

22

V1

Phase A voltage input

23

Current input

N/C

N/A

ME237C/ME237V/ME237R

Current channel interface.

24

N/C

N/A

25

I3-

Phase C current input negative

26

I3+

Phase C current input positive

27

I2-

Phase B current input negative

28

I2+

Phase B current input positive

29

I1-

Phase A current input negative

30

I1+

Phase A current input positive

31

RJ45

A B C three phase current input