1.overview DDS8558 electronic single-phase energy meterIt is a new single-phase electronic energy metering product newly developed by our company.This product complies withGB/T17215.321-2008In the standard1Level and2Technical requirements for static AC active energy meters.Applicable to reference voltage of220Vfrequency50HzMeasurement of single-phase AC active energy.This product is suitable for a wide voltage range.reliability.LONG SERVICE LIFE,High precision,Low power consumption.And it has functions such as preventing electricity theft..Small size,Easy installation.!Can be widely applied in cities,Single phase energy metering and centralized installation in rural or factory enterprises.

2. Working principle

As shown in the picture1As shown,The energy metering part of the energy meter adopts large-scale application specific integrated circuits(As shown by the dashed line in the figure)

The electricity consumed by users,By sampling the signals on the voltage divider and splitterA/Dconvert,The digital signal output by the digital multiplier is sent to(digit/frequency)converter,The output pulse of the converter circuit drives the meter to accumulate electricity,And use light-emitting diodes for energy metering indication.Display the rate of electricity consumption

picture1 Principle Block Diagram of Electric Energy Meter

3. Parameters and specifications:

voltage: 220V/230V ±20

frequency: 50Hz

Current specifications: 1.5(6)A 2.5(10)A 5(30)A 10(60)A 20(80)A，30（100）A

Voltage circuit power consumption:≤1.0W 5VA

Current circuit power consumption: ≤ 1VA(Ib)

Normal operating temperature: - fifteen℃ - +55℃

Storage and transportation temperature: - twenty-five℃ - +70℃

ambient humidity: ≤85%

Product lifespan: greater than 10 years

Dimensions: 108X161X52

Weight: Approximately 270g

4. Function and Features

1. metering function:Having positive measurement,Reverse active energy,Accumulated in total electricity consumption.

2. use5+1Step by step counter orLCDRecord accumulated power consumption.

3. Electric energy pulse indication;Power indicator function

4. Passive pulse output.

5. Using high-quality and long-life electronic components.Strong overload capacity,Long term work does not require adjustment

5.Installation dimensions and appearance diagram:

6.Pulse output wiring diagram:

1. The output of the electric pulse test is a passive optoelectronic isolation method. Two wires are connected to the signal terminals respectively5(-).6(+)label.

7. Installment and use

1. Before using the electric energy meter, it is necessary to check whether the lead seal is intact,Installation can only be carried out after re inspection of unsealed or stored electricity metering authorized institutions for an extended period of time.To ensure measurement accuracy.

2. The electric energy meter should be installed indoors,Dry and ventilated place,Avoid direct exposure of strong light to the window of the energy meter.The installation of the electric energy meter base plate should be placed on a sturdy insulating object that is not easily affected by moisture,Suggested installation height is1.8Above meters.

3. The electric energy meter should be wired according to the shell wiring diagram,Attention should be paid to the current size and the compatibility of the wire when wiring. The terminal of the joint should be suspended tightly,Avoid instrument damage caused by excessive current.

4. The voltage connected to the energy meter should comply with the reference specified value of the energy meter.The current passing through should not exceed the maximum current limit shown on the energy meter.Exceeding this range will result in inaccurate measurements.In severe cases, it can cause instrument damage and unsafe accidents.

5. The electric energy meter is connected10(40)AWhen the specifications are above or above,Copper core leads and copper connectors should be used for connection.

8. Transportation and Storage

1. The transportation and unpacking of electric energy meters should not be subjected to severe impacts,Measures for transporting precision instruments should be taken,And according toGB/T15464-1995General technical specifications for packaging of instruments and meters>>Regulations on Transportation and Storage.

2. The electric energy meter should be stored in its original packaging box,The storage location should be clean,The ambient temperature is-25Celsius to+70Celsius.Relative humidity not exceeding85%,And the air should not contain harmful substances that can cause corrosion.

3.This product belongs to precision electronic instruments.If in product handling.Access.When the shell shows obvious signs of damage due to severe impact or falling from a high altitude during installation,Please do not power up this energy meter.And contact our company as soon as possible to handle it.

4. The electric energy meter is not installed or used for a long time,The packaging should be intact and placed back in the original packaging box for storage.The time limit shall not exceed three years.

9. quality assurance

From the date of sale of the electric energy meter18Within a month.When users comply with the requirements of this manual.And under the condition that the original factory seal of the manufacturing company is intact.If it is found that the electric energy meter does not meet the requirements specified in the technical specifications.The manufacturing company provides free maintenance or replacement. Provide long-term paid technical support and maintenance beyond the warranty period.