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Eastron SDM120Modbus User Manual

Jiaxing Eastron Electronic Instruments Co.,Ltd.

Tel: 0086-573-83698881

83698882Fax: 0086-573-83698883

Address: No.1369 Chengnan Road, Jiaxing, Zhejiang, 314001, China.

Web:

www.eastron.com.cn

email:

[email protected]

Application

The energy-meters “with a blue back-lighted LCD screen for prefect reading” are used to measure single-phase like
residential, utility and Industrial application. The unit measures and displays various important electrical
parameters, and provide a RS485 communication port for remote reading and monitoring. Bi-directional energy
measurement makes the unit a good choice for solar PV energy metering. The compact design and din rail
installation provides a easy and economical solution for your metering demand.

General Specifications

Voltage AC (Un)

230V

Voltage Range

176~276V AC

Base Current (Ib)

5A

Max. Current (Imax)

45A

Mini Current (Imin)

0.25A

Starting current

0.4% of Ib

Power consumption

<2W/10VA

Frequency

50/60Hz(±10%)

AC voltage withstand

4KV for 1 minute

Impulse voltage withstand

6KV-1.2uS wavform

Overcurrent withstand

30Imax for 0.01s

Pulse output rate

1000imp/kWh (default)
100/10/1 imp/kWh/kVarh (configurable)

Display

LCD with blue backlit

Max. Reading

99999.9kWh

Accuracy

Voltage

0.5% of range maximum

Current

0.5% of nominal

Frequency

0.2% of mid-frequency

Power factor

1% of Unity

Active power

1% of range maximum

Reactive power

1% of range maximum

Apparent power

1% of range maximum

Active energy

Class 1 IEC62053-21
Class B EN50470-3

Reactive energy

1% of range maximum

Содержание SDM120 Modbus

Страница 1: ... Road Jiaxing Zhejiang 314001 China Web www eastron com cn email steven eastron com cn SDM120Modbus Single Phase Multifunction DIN rail Meter Measures kWh Kvarh KW Kvar KVA PF Hz dmd V A etc Di directional measurement IMP EXP Two pulse outputs RS485 Modbus Din rail mounting 17 5mm 45A direct connection Better than Class 1 B accuracy User Manual V2 2 2014 ...

Страница 2: ...act design and din rail installation provides a easy and economical solution for your metering demand General Specifications Voltage AC Un 230V Voltage Range 176 276V AC Base Current Ib 5A Max Current Imax 45A Mini Current Imin 0 25A Starting current 0 4 of Ib Power consumption 2W 10VA Frequency 50 60Hz 10 AC voltage withstand 4KV for 1 minute Impulse voltage withstand 6KV 1 2uS wavform Overcurren...

Страница 3: ... pulse outputs are passive type Pulse output 1 is configurable The pulse output can be set to generate pulses to represent total import export kWh or kVarh The pulse constant can be set to generate 1 pulse per 0 001 default 0 01 0 1 1kWh kVarh Pulse width 200 100 60ms Pulse output 2 is non configurable It is fixed up with total kWh The constant is 1000imp kWh RS485 output for Modbus RTU The meter ...

Страница 4: ...al active energy kWh Scroll Display by button There is a button on the front of the meter After initialization and self checking program the meter display the measured values The default page is total kWh If the user wants to check other information he needs to press the scroll button on the front panel Click the button the LCD display will scroll the measurements Keep pressing the button for 3 se...

Страница 5: ...ax 0086 573 83698883 Address No 1369 Chengnan Road Jiaxing Zhejiang 314001 China Web www eastron com cn email steven eastron com cn 2 Voltage V 3 Current A 4 Active power W 5 Frequency F 6 Power factor PF 7 Modbus Adress ID Default 001 8 Baudrate Default 2400bps 9 Parity None even odd are optional Default none ...

Страница 6: ...n com cn email steven eastron com cn Set up Mode To get into Set up Mode the user need keep pressing the button for 3 seconds the meter LCD will shows SET The user can program the meter parameters by sending correct command via RS485 port The protocol is Modbus RTU For the details Please look at the Eastron SDM120C protocol Wiring diagram 1 L in 2 L out 3 4 N 5 6 7 PO 2 Com PO 1 9 10 RS485 B A Dim...

Страница 7: ...Jiaxing Eastron Electronic Instruments Co Ltd Tel 0086 573 83698881 83698882Fax 0086 573 83698883 Address No 1369 Chengnan Road Jiaxing Zhejiang 314001 China Web www eastron com cn email steven eastron com cn Installation 35mm DIN Rail ...

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