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Din Rail Energy Meter

Product catalog summary

Introduction
The document describes the DEM series of DIN-Rail energy meters designed for residential energy metering and smart energy projects. These meters support Modbus-RTU and pulse output communication for integration with data acquisition systems. Various sub-models offer features like prepaid billing, wireless data transmission, and expansion modules.

Main Features

35mm DIN-rail installation
High precision measurement
Large LCD screen with backlight
RS485 port with Modbus-RTU
80A current direct input, 0.04A start current
Compatible with 50Hz and 60Hz systems
IEC 62053-21 1.0 Class / IEC 62053-22 0.5 class
Optional multiple tariffs and prepaid billing functions
Universal power supply (85-265VAC/DC)

Technical Characteristics

Models: DEM-2M1D, DEM-3M1C, DEM-4M1D, DEM-4M3C, DEM-7M3D
Wiring: Single-phase and three-phase options
Power supply: Self-powered 85-265 VAC/DC
Display capacity: Up to 99,999,999 KWh/MWh
Measurement accuracy: Current and voltage at 0.5%, active energy Class 1, reactive energy Class 2
Temperature range: -25°C to 55°C
IP protection: IP40 front panel, IP20 casing

DEM-NX Modular Multifunction Energy Meter
This new generation meter offers a flexible modular design with up to 64 channels and 16 I/O ports. It supports RS485 or Ethernet interfaces and optional IoT modules.

1.6 inch dot matrix LCD screen
Precision metering & sub-billing
RS-485 modbus/RTU communications
Universal power supply (85-265VAC/DC)

Applications

SCADA, EMS, DCS integrators
Medium and low pressure systems
Energy measurement and electrical fire monitoring
Transformers, capacitors, and electric motors detection

Measurement Specifications

Current measurement: 0 ... 11 KA, accuracy 0.5%
Voltage measurement: 18 ... 300 VAC, accuracy 0.5%
Frequency measurement: 45 ... 65 Hz, accuracy ±0.02 Hz
Energy accuracy: Active energy Class 1.0, Reactive energy Class 2.0

Catalog excerpts

I DIN-RAIL ENERGY METER DEM SERIES DIN-RAIL ENERGY METER Model •With this function oOptional function -Without this function (1) Basic parameters:Voltage,Current,Frequency,Total power factor,Active power,Reactive power. i Introduction DEM series design for DIN-Rail mounting, suit for residential energy metering and smart energy project. DEM seires has Modbus-RTU and pulse output communication allows seamless integration with data acquisition systems. Various sub-models available, optional prepaid (IC card), wireless data transmit (4G/5G, Rolar etc.), expansion modules are available in built-in and external versions. Combines high performance smart energy meter, ease of integration to provide a cost-effective power and energy metering solution. Featuring a LCD display designed to simplify setup and local reading of meter data. • High precision measurement. • Large LCD screen with backlight. • RS485 port built-in with Modbus-RTU. • 80A current direct input, 0.04A start current. • Built-in energy pulse output and alarm output. • Compatible with both 50Hz and 60Hz systems. • Optional multiple tariffs and prepaid billing functions. • 10-400VAC direct voltage input, optional VTs connect. • Tamper-proof design approved for revenue applications. • Optional multiple types CTs input: 5A/1A, 333mV, 100mA. • Universal series power supply (85-265VAC/DC), 20-60VDC optional. - Access method - Phase number - Module number Technology of Electrical Automatic

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Technology of Electrical Automatic

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I DIN-RAIL ENERGY METER i Introduction DEM-NX modular multifunction energy meter is Blue Jay new generation din-rail energy meter. This flexible modular design product can expand max 64 channels metering point, plus 16 points I/O port for on-site control. Optional 100mA or 333mV CT connect, provide max 0.5 class metering accuracy. RS485 interface or Ethernet interface or extra IoT module valid for different project. • 1.6 inch dot matrix LCD screen. • Optional IoT expand module. • Precision metering & sub-billing. • Optional ethernet expand module. • Core unit provide 15W (12Vdc) drive capacity....

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