1P single-phase rail type energy meter

The DDS228 rail type energy meter is a new type of single-phase electronic energy metering product developed by our company. This product complies with the technical requirements for Class 1 and Class 2 static AC active energy meters in GB/T17215.321-2008 and IEC62053-21 international standards, and is suitable for measuring single-phase AC active energy with a reference voltage of 220/230V and a frequency of 50Hz/60Hz. This product is suitable for a wide voltage range, high reliability, long lifespan, high accuracy, low power consumption, and has functions such as anti-theft. It adopts a guide rail structure design, which is small in size and easy to install. The standard 35mm guide rail installation interface is internationally recognized.

working principle

The electricity consumed by the user is converted from analog to digital by sampling the signals on the voltage divider and splitter, and the digital signal output by the digital multiplier is sent to the (digital/frequency) converter. The converter circuit outputs a pulse to drive the meter to accumulate electricity, and the energy consumption rate is displayed through a light-emitting diode for energy metering indication.

Parameters and specifications

Voltage: 220V/230V

Frequency: 50/60Hz

Current specifications: 5 (40) A, 5 (50) A

Voltage circuit power consumption: ≤ 20W, 5VA

Current circuit power consumption: ≤ 1VA (Ib)

Normal operating temperature: -10 ℃ -+55 ℃

Storage and transportation temperature: -25 ℃ -+60 ℃

Environmental humidity: ≤ 85%

Product lifespan: greater than 10 years

Dimensions: 90 × 66 × 18 (mm)

Weight: Approximately 100g

Function and Features

Measurement function: capable of measuring positive and negative active energy, accumulated in the total electricity quantity;

Using a 6+1-bit stepper counter to record accumulated power, with the option of a 6+1-bit LCD display mode;

Electric energy pulse indication; Power indication function;

Adopting 35mm DIN rail or front board installation;

Passive pulse output;

Using high-quality and long-life electronic components, with strong overload capacity, long-term operation does not require calibration.

Installation and Usage

Before use, the lead seal of the electric energy meter should be checked for integrity. For electric energy meters that are not sealed or have been stored for too long, they must be re inspected by a metrological authorization agency before installation to ensure measurement accuracy.

The electric energy meter should be installed indoors in a dry and ventilated place, avoiding direct exposure of strong light to the meter window. The bottom plate of the electric energy meter should be placed on an insulated object that is not easily affected by moisture, and it is recommended to install it at a height of 1.8 meters or more.

The electric energy meter should be wired according to the shell wiring diagram, and attention should be paid to the current size and the matching of the wires. The joint terminals should be suspended tightly to avoid damage to the instrument when the current is too high.

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

When connecting an electric energy meter with specifications of 10 (40) A or above, copper core leads and copper connectors should be used for connection.

Transportation and Storage

The transportation and unpacking of electric energy meters should not be subjected to severe impacts. Measures for transporting precision instruments should be taken, and transportation and storage should be carried out in accordance with the provisions of GB/T15464-1995 "General Technical Conditions for Instrument Packaging".

The electric energy meter should be stored in its original packaging box, in a clean location with an ambient temperature of -25 ℃ to+70 ℃, a relative humidity not exceeding 85%, and the air should not contain harmful substances that can cause corrosion.

This product is a precision electronic instrument. If there are obvious signs of damage to the outer shell due to severe impact or falling from a high altitude during product handling, use, or installation, please do not power on the electric meter and contact our company as soon as possible for handling.

If the electric energy meter is not installed or used for a long time, it should be packaged properly and stored in its original box for no more than three years.

Quality Assurance

Within 18 months from the date of sale of the electric energy meter, if the user complies with the requirements of this manual and the original seal of the manufacturing company is intact, and it is found that the electric energy meter does not meet the technical requirements, the manufacturing company will provide free repair or replacement; Long term paid technical support and maintenance will be provided for those who exceed the warranty period.