DDSU228 Single phase rail type multifunctional electric energy meter (WIFI communication 4P)

Overview

The DDS228-WIFI DIN rail mounted single-phase electronic active energy meter is a newly developed single-phase two-wire active energy meter by our company, which adopts microelectronics technology and specialized large-scale integrated circuits, and applies advanced technologies such as digital sampling processing technology and SMT process. The technical performance of this meter fully complies with the relevant technical requirements of the Level 1 single-phase active energy meter in the IEC 62053-21 international standard, and can directly and accurately measure the consumption of active energy by loads in single-phase AC power grids with a rated frequency of 50Hz or 60Hz. This meter is equipped with a 7-digit LCD display to show functional battery levels, and has the characteristics of good reliability, small size, light weight, beautiful appearance, and easy installation. Widely applicable and convenient to set up

Features

1. Equipped with a 7-bit LCD display, standard configuration includes 6+1 bit (99999.99kWh) display, and 5+2 bit display can be selected.

2. The standard configuration includes passive power pulse output (with polarity), and passive remote power pulse output (without polarity) can be selected for easy connection with various AMR systems, in compliance with IEC 62053-31 and DIN 43864 standards.

3. Three LEDs respectively indicate the power status and power pulse signal.

4. Unidirectional measurement of single-phase two-wire active energy consumption, independent of the direction of load current flow, in accordance with IEC 62053-21 standard.

5. Standard configuration S-type wiring (bottom inlet, bottom outlet), for direct connection use.

6. It has WiFi communication function and can be connected to WiFi communication network for remote meter reading and centralized management. It comes with standard communication protocol and optional communication protocol (MODBUS-RTU or DL/T645 protocol).

Technical Specifications

◆ Model: DDS228-WIFI

Accuracy level: 1.0 level

Rated voltage: 220V, 230V

Calibration current: 5 (6) A, 5A (CT), 5 (30) A, 10 (60) A, 20 (80) A, 30 (100) A

◆ Meter constant: see nameplate annotation

Note: (Ib rated current Imax maximum current)

Accuracy level: Level 1, Level 2.

Reference frequency: 50Hz, 60Hz.

Accuracy does not require calibration for long-term work.

◆ Environmental conditions:

Basic operating temperature: -20 ℃ to+55 ℃

Extreme working temperature: -35 ℃ to+80 ℃

Relative humidity: ≤ 85%

There should be no corrosive gases in the surrounding air, and dust, salt spray, condensation, etc. should be avoided.

◆ Dimensions: 75mm × 88mm × 73.5mm