ME-3H31 LED display three phase digital PF meter, measure power factor with high-precision

Feature

•Measure power factor with high-precision.

•Provide LED display and local data query.

•Programmable current and voltage transformation ratio.

•Support RS-485 communications and Modbus-RTU protocol.

•Support switch input, switch output and analog output.

•Power supply: AC / DC 80V~270V ,AC 220V,AC 380V,AC 100V,DC 48V,DC24V

•There are various choices of dimensions to meet the requirements of different electrical circuit enclosure.

Technical Index

Accuracy Measurement

 power factor

 class 0.5

Input Measurement

Wiring

single-phase,3-phase 3-wire

Rated Voltage

AC 57.7V,AC 100V,AC 220V,AC 380V 

Rated Current

AC 1A,AC 5A

Overload

Voltage:Sustained: 1.2 times; Instantaneous: 2 times/ 1s

Current:Sustained: 1.2 times; Instantaneous: 10 times/ 5s

Power consumption

Voltage: <1VA (per phase),Current: <0.4VA (per phase)

Impedance

Voltage: >300KΩ , Current:<20mΩ

Frequency

45~65Hz

Power supply

Working range

AC/DC 80V~270V,AC220V,AC380V,AC100V,DC 48V,DC 24V

Power consumption

<4VA

Functional Module

Communication interface

1 loop RS-485 Communication, MODBUS-RTU protocol

Baud rate: 2400 ~ 19200bps, Default: 2400bps

Switching value input

4 loops switching value input, dry joint

Switching value output

3 loops relay output, capability: AC 250V/5A,DC 30V/5A

Transmission output

3 loops analog output: 0/4~20 mA or 0~5/10 V

Environment

Operational environment

-10℃~+55℃

Storage environment

-25℃~ + 70℃

Relative humidity

≤93 %,in the place without corrosive gas

Height above sea level

≤2500m

Safety

Insulation resistance

> 100MΩ

AC withstand voltage

AC 2KV

Electro Magnetic Compatibility

Electro-Static discharge

class 4

Electrical Fast 

Transient pulse train

class 4

Electrical surge

class 4

Outline Dimension

External Dimension( m m )

120×120;80×80;96×48;96×96;72×72;48×48;120x60;160x80

Cutout Dimension( m m )

111×111;76×76;92×45;92×92;68×68;45×45;114x56;152x76

Specification Matching

Model

Function

Measurement

Extended Function(Optional)

Display

Cutout

Dimension

(mm)

External

Dimension

( mm )

single phase

power factor

three phase 
power factor

Switch

input 

Switch

output

Transmission

output

Communication

interface

LED

 LCD

ME-H11

√

-

2

2

1

1

√

-

152X76

160x80

ME-3H11

-

√

2

2

1

1

√

-

ME-H21

√

-

2

2

1

1

√

-

111X111

120×120

ME-3H21

-

√

2

2

1

1

√

-

ME-H31

√

-

2

2

1

1

√

-

92X92

96×96

ME-3H31

-

√

2

2

1

1

√

-

ME-H41

√

-

2

2

1

1

√

-

114X56

120x60

ME-3H41

-

√

2

2

1

1

√

-

ME-H51

√

-

2

2

1

1

√

-

92X45

96×48

ME-3H51

-

√

2

2

1

1

√

-

ME-H61

√

-

2

2

1

1

√

-

68X68

72×72

ME-3H61

-

√

2

2

1

1

√

-

ME-H71

√

-

2

2

1

1

√

-

76×76

80×80

ME-3H71

-

√

2

2

1

1

√

-

ME-H81

√

-

2

2

1

1

√

-

45×45

48×48

ME-3H81

-

√

2

2

1

1

√

-

  Note: The number of optional extended functions would be the maximum number we can extend in normal conditions.

         If you have any special request, please contact with our technical department.