DTSY5688-Three-phase Four-wire Electronic Prepaid IOT Energy Meter

Product Description

General

The three-phase wall-mounted IoT energy meter developed by our company is designed and manufactured in accordance with the requirements of international and domestic standards, using advanced large-scale integrated circuits, mature software algorithms, low-power design, and SMT technology. This product integrates functions such as metering, display, communication, and monitoring. It adopts high-precision metering chips to accurately meter three-phase forward and reverse active energy, four-quadrant reactive energy, and precisely measure three-phase voltage, current, active power, reactive power, power factor, etc., in real-time. It also monitors and records events such as voltage loss, current loss, and phase loss. It can achieve functions such as remote and local meter reading, programming, etc.

This product can be widely used in power grid access, power plants, substations, comprehensive energy metering and management of various enterprises and institutions, as well as multi-rate energy metering for industrial users. The performance indicators of this IoT meter mainly refer to the following standards:

· GB/T 17215.323-2008 "Special Requirements for AC Electrical Measurement Equipment - Part 23: Static Var Hour Meters (Class 2 and Class 3)"

· GB/T 17215.322-2008 "Special Requirements for AC Electrical Measurement Equipment - Part 21: Static Active Energy Meters (Class 0.2S and Class 0.5S)"

· GB/T 17215.321-2008 "Special Requirements for AC Electrical Measurement Equipment - Part 21: Static Active Energy Meters (Class 1 and Class 2)"

· GB/T 17215.211-2006 "General Requirements for AC Electrical Measurement Equipment Testing and Test Conditions - Part 11: Measurement Equipment"

· GB/T 17215.301-2007 "Special Requirements for Multi-Function Energy Meters"

· DL/T 614-2007 "Multi-Function Energy Meters"

· DL/T645-2007 "Communication Protocol for Multi-Function Energy Meters"

· GB/T19582.1-2008 "Industrial Automation Network Specification Based on Modbus Protocol Part 1: Modbus Application Protocol

Main Performance:

· Equipped with remote communication functions such as NB-IoT, WiFi, RS485, LoRa, 4G.

· Able to meter and store forward and reverse active energy, forward and reverse reactive energy, and time-of-use tariff energy.

· Has storage function for historical energy data of up to 12 settlement periods.

· Real-time measurement of parameters such as voltage, current, power, power factor, and current demand.

· Functions include timing, instantaneous, scheduled, hourly, and daily freezing, with configurable freeze characteristic words.

· Has load recording function with configurable load recording characteristic words and interval time.

· Equipped with two sets of time zones and schedules for automatic switching at designated times.

· Features power outage display function, with wake-up display capability through buttons or infrared after power outage.

Specification

Item	Parameter
Reference Voltage	Un 220V (70% - 120%)
Reference Current	●Direct access: basic current (Ib) 5A, 10A, 20A; ●Via transformer access: rated current (In) 1.5A ●Maximum current: 4 times or more of the reference current.
Start Current	0.2% Ib(In) (transformer-access, Class 1), 0.4% Tb(In) (direct-access, Class 1), 0.1% Ib(In) (Class 0.5S)
Accuracy	Active class 0.5 / 1; Reactive class 2
Power Consumption	Voltage line active power ≤ 1.5W, apparent power ≤ 6VA Current line transformer access type ≤ 0.2VA; direct access type ≤ 0.4VA
Operating range	0.9Un~~1.1Un (Extended operating range 0.8Un~1.15Un)
Clock Error	<0.5 s/d (reference temperature); ≤1s/d (operating temperature range)
Submersible	Logic anti-submersible function
Pulse Constant	1600 imp/kWh * Refer to the values indicated on the nameplate of the meter.
Pulse Width	80ms±20ms
Daily timing error detection signal	1Hz
Pulse width of time-slot switching signal	80ms~20ms
Demand cycle signal pulse width	80ms~20ms
Alarm output contact	220 V AC/5 A; 100 V DC/0.1 A
Trip normally open output contact	AC 250V/5A; DC 30V/5A
Tripping normally closed output contact	AC 250V/3A; DC 30V/3A