DDSU21 M1-I/M1-K/NB single-phase electronic energy meter (rail)

NegotiableUpdate on 03/11

Model

Nature of the Manufacturer: Producers

Product Category

Place of Origin

Online Consult

Overview

Product model: DDSU21 M1-I/M1-K/NB type Product introduction: DDSU21 M1-I/M1-K/NB single-phase electronic energy meter (rail) is designed and manufactured using advanced energy metering dedicated chips, mature communication methods, digital sampling processing technology, and SMT manufacturing technology, based on the actual electricity consumption of users. It is an internationally advanced level of energy meter. It has the advantages of small size, high accuracy, good reliability, and easy installation. It can be used to measure single-phase AC active energy and supports remote prepayment function.

Product Details

Functional Features

35mm DIN standard rail installation, in compliance with DIN EN 50022 standard, or front panel installation (with installation hole center distance of 63mm), two installation methods can be freely selected by the user. 8-bit LCD display, standard configuration 6+2-digit (999999.99kWh) display. Standard configuration: Passive power pulse output. Single phase active energy measurement and display of single-phase voltage, current, and active energy. Compact in size and resistant to electricity theft. Voltage signal power supply, no auxiliary power supply required.

metering function

a. Having positive active energy and data power-off storage for 10 years;

b. Support multiple billing methods, including local billing function for meters, and automatic power consumption restriction when the remaining value in the meter is used up; Support for ordinary meters, with remote settlement issuing power outage commands to limit electricity usage; Support backend settlement for electricity usage.

display function

a. LCD display, supporting multiple parameter interface displays;

b. Equipped with automatic parameter rotation display function.

communication

a. The electricity meter has one RS485 interface;

b. Electric meter public network NB module (optional);

c. The RS485 interface/communication module interface is electrically isolated from the inside of the electricity meter.

output function

Has active power test pulse output.

Event recording function

a. Real time measurement of effective values such as voltage, current, power, and current frequency;

b. It has recording functions such as programming and timing.

Multiple rate function (optional)

a. Programmable 4 rates, 14 time periods, 8 daily time period tables, 14 annual time zones, 254 public holidays;

b. The electricity meter has two sets of time zone meters and two sets of daily time zone meters;

Malignant load identification detection and power-off function (M1-K has)

In the state of power protection or non power protection, if the active power and power coefficient judgment values are preset, when the user's active power is greater than the preset active power and the power coefficient is greater than the preset power coefficient, it is judged as a malignant load, and the meter trips or alarms while the alarm light is on, and the malignant load identification code can be read. Automatically close after N minutes of setting the trip automatic closing (N can be set, default closing is 5 minutes). When setting the minute count to 0, a remote closing command is required to close the switch

Technical indicators

Technical Parameter	Calculation range: 0~999999.99 kWh
	Accuracy level: Level 1
	Voltage specification: 220V
	Current specifications: 1.5 (6) A, 5 (60) A, 10 (40) A, 15 (60) A, 20 (80) A, 5 (80) A
	Rated frequency: (50Hz ± 2.5) Hz
	Display: LCD
	Communication: RS485 ① port: 1200bps~9600 bps (default 2400 even parity)
	Communication protocol: DL/T645-2007 "Multi functional Energy Meter Communication Protocol" Modbus RTU/MQTT protocol
Electrical parameters	Normal operating voltage: 0.9Un~1.1Un
	Extended working voltage: 0.8Un~1.15Un
	Power consumption of each phase voltage line: ≤ 1W
Rate operation parameters	Clock accuracy (daily error): ≤ 0.5S (23 ℃)
	Battery capacity: ≥ 1200mAh
	Data retention time after power outage: ≥ 10 years (using new batteries)
Weather	Normal operating temperature: -25 ℃ to+55 ℃
	Extreme working temperature: -35 ℃~+70 ℃
	Storage and transportation temperature -35 ℃~+70 ℃
	Storage and working humidity: Annual average ≤ 85%
mechanical parameters	Dimensions: 87.9mm × 74.7mm × 74.15mm (top and bottom out type)
mechanical parameters	Dimensions: 89mm × 76mm × 77.6mm (bottom in and bottom out)