Eastron SDM120M Manual

Eastron Måling SDM120M

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Side 1/2

2.2 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 IEC 62053-21

Class B EN50470-3 (M ID product only)

Reactive energy 1% of range maximum

2.3 Environment

Operating temperature ℃ ℃ -25 to +55

Storage and transportation temperature -40 to +70 ℃ ℃

Reference temperature 23 2 ℃± ℃

Relative humidity 0 to 95%, non-condensing

Altitude up to 2000m

Warm up time 3s

Mechanical environment M1

Electromagnetic environment E2

Degree of pollution 2

2.4 Mechanics

Din rail dimensions 18x119x62 (WxHxD) DIN 43880

Mounting DIN rail 35mm

Sealing IP51 (indoor)

Material self-extinguishingUL94V-0

3 Display

Initialization Display

When it is powered on, the meter will initialize and do self-checking.

After the self-checking program, the meter screen will display the total active

energy (kWh)

* Note: For the MID version of SDM120CT M, S DM120CT MB and SD M120CT P, the

CT ratio can be set only once. Before you set the CT ratio, please check the ratio

of the CT connected to the meter. For example, if the CT is 100/5A, please set CT1

to be 100.

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 L CD display will scroll the

measurements.

Keep pressing the button for 3 seconds, the meter

will enter set-up mode.

1-1

Total active energy(kWh)

Display format:0000.00 9999.99→

→ → →10000.0 99999.9 0000.00

Import active energy(kWh)

Display format:0000.00 9999.99→

→ → →10000.0 99999.9 0000.00

Export active energy(kWh)

Display format:0000.00 9999.99→

→ → →10000.0 99999.9 0000.00

1-2

2Voltage (V)

3Current (A)

4Active power (W)

5Frequency (F)

Power factor (PF)

Modbus Address or Primary address

Default: 001

Baudrate Default : 2400bps

Parity

None/Even/Odd are optional

Default: none

CT 1

Primary current 1A-9999A Default: 5

* Note: For the MID versio n o f SDM1 20CT M, SD M120CT M B

and S DM 120CT P, the CT ratio can be set only once .

(SDM120CT* only )

The display of each model:

CT 2

Secondary current 1A or 5A ,Default: 5

For SDM 120CT-M V,CT 2 is fixed with 100mV

(SDM120CT* only )

M-Bus secondary address High

M-Bus secondary address Low

(M-Bus version only )

Software version In kind prevail

Display LCD with white backlit

Max. Reading 99999.9kWh (SDM120 45A)

999999 kWh (SDM120 CT)

SDM120M: Total kWh Voltage

Current Power factor

Address

Baudrate

Import kWh Export kWh

Active power Frequency

Parity Software version

SDM120P: Total kWh Voltage

Current Power factor

Import kWh Export kWh

Active power Frequency

Software version

SDM120M B: Total kWh Voltage

Current Power factor

Address

Baudrate Secondary address

Import kWh Export kWh

Active power Frequency

Parity address high

Software version

Secondary

SDM120C TM: Total kWh Import kWh Export kWh Voltage

Current Active power Frequency Power factor

CT 1 CT 2

Address Baudrate Parity Software version

low

Full screen

It will last for 3 seconds.

Software version

It will last for 3 seconds.

Total active energy(kWh)

Ct1

Primary current 1A-9999A

Default: 5

(SDM120CT* only )

5A or 100mV C T Connect

Caution

Qualiﬁed personnel

Proper handling

6.2 Installation

5mm

5 IN Rail

6.3 Wiring diagram

G B A

MBUS 1M BUS 2

G B A

MBUS 1 MBUS 2

7 Declaration of Conformity (for the MID approved version meter only).

We Zhejiang Eastron Electronic Co., Ltd. declares under our sole responsibility

as the manufacturer that the single phase multifunction electrical energy meter

SDM120 series correspond to the production model described in the EU-type

examination certificate and the requirements of the Directive 2014/32/EU. Type

examination certificate number 0120/SGS0141. Identification number of the

Notified Body: 0120.

Zhejiang Eastron Electronic Co Ltd ., .

No 1369 Chengnan Rd. .

Jiaxing,

Zhejiang China,

Email sales@eastrongroup com: .

Web www.eastrongroup com: .

Tel:86 573 83698881/83698882

Tel:86 573 83698883

6. Installation

6.1 Safety instruction

Information for your own safety

Warning

5. Dimensions

4. Communicati on

4.1 Pulse Output

The meter is equipped with 2 pulse outputs, which are fully isolated from

the inside circuit. That generates pulses in proportion to the measured

energy. The pulse outputs are polarity dependent , passive transistor

output requiring an external voltage source for correct operation. For

this external voltage source, the voltage shall be 5-27V DC, and the

maximum input current shall be 27mA DC.

Please contact us for the detailed Modbus/M-Bus communicaon protocol.

sales@eastrongroup.com

SDM120M SDM120MB SDM120P

SDM120CTM/CT-M V

SDM120CTMB SDM 120CTP

SDM120CT-MV: Total kWh Import kWh Export kWh Voltage

Current Active power Frequency Power factor

CT 1

Address Baudrate Parity Software version

SDM120CTP: Total kWh Import kWh Export kWh Voltage

Current Active power Frequency Power factor

CT 1 CT 2

Software version

ATTENTION:Pule output must be fed as shown in the

wiring diagram below.Scrupulousil respect polarities

and the connection mode. Opto-coupler with

potential-free SPST-NO Contact.

Contact range:5~27VDC Max.current

Input:27mA DC

Uimp

O U T P U T

MID

SDM120CTMB: Total kWh Import kWh Export kWh Voltage

Current Active power Frequency Power factor

CT 1 CT 2

Address Baudrate Parity Secondary

Secondary address low Software version

address high

The meter provides a RS485 port for remote communication. Modbus RTU is the

protocol applied. For Modbus RTU, the following RS485 communication parameters

can be configured from the Set-up menu.

Baud rate: 1200, 2400, 4800, 9600

Parity: NONE/EVEN/ODD

Stop bits: 1 or 2

Modbus Address: 1 to 247

4.5 RS485 output for Modbus RTU (SDM120M and SDM120CTM/CT-MV only)

4.2 Pulse Output 1 ( SDM120M/ MB/CTM/CT-MV/CTM only)

Pulse output 1 is configurable. The pulse output 1 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 ( default)

4.3 Pulse Output 1 ( SDM120P and SDM120CTP only)

Pulse output 1 is non-configurable. It is fixed up with Export kWh.

The constant is 1000imp/kWh.

4.4 Pulse Output2

Pulse output 2 is non-configurable. It is fixed up with Import kWh. The constant is

1000imp/kWh.

The Pulse width: 60ms

The meter provides an M-Bus port for remote communication. The protocol fully

comply with EN13757-3.The following communication parameters can be configured

via M-bus communication. Baud rate: 300,600, 2400, 4800, 9600

Parity: NONE/EVEN/ODD

Stop bits: 1 or 2

M-Bus network primary address: nnn – 3 digits number from 001 to 250

M-Bus network secondary address: 00 00 00 00 to 99 99 99 99

4.6 M-Bus communication EN13757-3 (SDM120MB and SDM120CTMB only)

This manual does not contain all of the safety measures for operation of the

equipment(module,device),because special oper ating conditions,and local

code requir ements or r egulations may necessitate further measures.

However,it does contain information which must be read for your personal

safety and to avoid material damages.This information is highlighted by a

warning triangl e and is represented as follow s, depending on the degree of

potential danger.

This means that failure to observe the instruction can result in death,

serious injury or considerable material damage.

This means hazard of electric shock and failure to take the

necessary safety precautions will result in death,serious injury or

considerable material damage.

Operation of the equipment (module, device) described in this manual may

only be performed by qualiﬁed personnel . Qualiﬁed personnel in this manual

means person who are author ized to commission, start up, ground and label

devices,systems and circuits according to safety

and Regulatory standards.

The equipment (device, module) may onl y be used for the application

speciﬁed in the catalogue and the user manual,and only be connected with

devices and components recommended and approved by EASTRON.

Use only insulating tools.

Do not connect while circuit is live (hot).

Place the meter only in dry surroundings.

Do not mount the meter in an explosive area or expose the meter to dust,

mildew and insects.

Make sure the used wires are suitable for the maximum current of this meter.

Make sure the AC wires are connected correctly before activating the

current/voltage to the meter.

Do not connect the meter to a 3 phase - 400VAC - network.

Do not touch the meter connecting clamps directly with your bare

hands, with metal, blank wire or other material as you may get an electrical

shock.

Make sure the protection cover is placed after installation.

Installation, maintenance and reparation should only be done by qualiﬁed

personnel.

Never break the seals and open the front cover as this might inﬂuence the

functionality of the meter, and will avoid any warranty.

Do not drop, or allow physical impact to the meter as there are high precision

components inside that may break.

Produkt Specifikationer

Mærke:	Eastron
Kategori:	Måling
Model:	SDM120M

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