1. Overview

DT (S) S-type three-phase electronic active energy meter is used for measuring active energy in power supply departments, factories, enterprises, commercial and agricultural power and lighting equipment. The meter adopts imported specialized large-scale integrated circuits, 16 bit A/D conversion, digital multiplier, digital sampling processing technology and SMT process. It is a new type of energy meter designed and manufactured according to the actual electricity consumption of industrial users. This instrument is used to measure AC three-phase active energy with a frequency of 50Hz, and the electricity is displayed on a LCD screen for intuitive reading and easy meter reading. It is equipped with infrared communication and RS485 communication, providing advanced and reliable measurement tools for three-phase energy measurement.

The metering module used in this meter can accurately measure three-phase positive and negative bidirectional active energy. Accurate, stable, reliable measurement, with good resistance to electromagnetic interference, low power consumption, high accuracy, anti-theft, wide range, long life and other characteristics.

The performance indicators of this product comply with the technical specifications for electric energy meters in GB/T17215.321-2008 "Level 1 and Level 2 Static AC Active Energy Meters", DL/T 645-1997 "Communication Protocol for Multi functional Electric Energy Meters", and DL/T 645-2007 "Communication Protocol for Multi functional Electric Energy Meters".

2. Main functions

2.1 Energy metering function

Measure the total active electrical energy. Three phase power supply, one or two phases of power outage, measurement accuracy is not affected.

2.2 Pulse output interface

Equipped with optocoupler isolation active passive pulse output interface, with a pulse width of 80ms.

2.3 Phase loss indication function

Use three light-emitting tubes to indicate whether there is a phase loss. The three light-emitting tubes represent phases A, B, and C. When a phase is missing, the corresponding indicator light will not light up.

2.4 Communication Function

Equipped with infrared communication interface and RS485 communication interface, it is convenient for users to read electricity data through the communication interface, which is convenient and reliable.

Communication baud rate: Infrared communication is set to 1200, RS485 communication defaults to 1200, and the baud rate can be changed.

2.5 Relay control function (expandable).

2.6 Power outage display function (expandable).

2.7 Display total electricity data (without power parameter meter).

2.8 Instrument LCD display, rotating display of meter number, electricity quantity, voltage, current, active power parameters, electricity quantity displayed for 10 seconds, and other data displayed for 5 seconds (with power parameter instrument).