Digital AC Ammeter Inelligent AMP Meter

Feature

Measure single-phase AC current with high-precision.

Provide LED display and local data query.

Programmable current transformation ratio.

Support RS-485 communications and Modbus-RTU protocol.

Support switch input, switch output and analog output.

Power supply: AC 80V~270V ,AC 220V,AC 380V,AC 100V

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

Technical Index

Accuracy Measurement

Current

 class 0.5

Input Measurement

Wiring

single phase

Rated value

AC 1A,AC 5A,DC 20mA

Overload

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

Power consumption

<0.4VA(per phase)

Impedance

<20 mΩ

Frequency

45~65Hz 

Power supply

Working range

AC 80V~270V,AC 220V,AC 380V,AC 100V

Power consumption

<4VA

Functional Module

Communication interface

1 loop RS-485 Communication, MODBUS-RTU protocol

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

Switching value input

2 loops switching value input, dry joint

Switching value output

2 loops relay output, capability: AC 250V/5A

Transmission output

1 loop analog output: 0/4~20 mA or 0~5/10 V

Environment

Operational environment

-10ºC~+55ºC

Storage environment

-25ºC~+70ºC

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( mm )

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

Cutout Dimension( mm )

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 )

AC

DC

Switch 

input 

Switch

 output

Transmission 

output

Communication 

interface

LED

 LCD

DM-AA11

√

-

2

2

1

1

√

-

152X76

160x80

DM-DA11

-

√

2

2

1

1

√

-

DM-AA21

√

-

2

2

1

1

√

-

111X111

120×120

DM-DA21

-

√

2

2

1

1

√

-

DM-AA31

√

-

2

2

1

1

√

-

92X92

96×96

DM-DA31

-

√

2

2

1

1

√

-

DM-AA41

√

-

2

2

1

1

√

-

114X56

120x60

DM-DA41

-

√

2

2

1

1

√

-

DM-AA51

√

-

2

2

1

1

√

-

92X45

96×48

DM-DA51

-

√

2

2

1

1

√

-

DM-AA61

√

-

2

2

1

1

√

-

68X68

72×72

DM-DA61

-

√

2

2

1

1

√

-

DM-AA71

√

-

2

2

1

1

√

-

76X76

80×80

DM-DA71

-

√

2

2

1

1

√

-

DM-AA81

√

-

2

2

1

1

√

-

45X45

48×48

DM-DA81

-

√

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.