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EM Energy Meter Leading Manufacturer Protects Solar Power Safety

EM Energy Meter Leading Manufacturer Protects Solar Power Safety
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EM Energy Meter Leading Manufacturer Protects Solar Power Safety

Product catalog summary
Introduction
The EM Energy Meter series features the TOUCH TECH system, integrating a touch keypad with a backlit LCD display for enhanced user interaction. This system simplifies navigation and programming, eliminating mechanical key issues.
Specifications
The EM series includes various models:
  • EMAM: 120V/240V, 45A direct connection, 1-DIN module.
  • EMBM: 120V/240V, 100A direct connection, 2-DIN module.
  • EMCM: 220V/400VLL, 5A CT connection, 2-DIN module.
  • EMDM: 220V/400VLL, 65A direct connection, 3-DIN module.
All models feature a backlit LCD, pulse output, Modbus RTU or M-bus port, and digital input for dual tariff management.
Features
The meters support single-phase and three-phase energy analysis, with extended direct current inputs and integrated communication options (RS485 Modbus and M-Bus). They are suitable for dual tariff management and measure both imported and exported energy.
Applications
These meters are ideal for energy consumption monitoring in settings from residential to large buildings like hospitals, aiding in cost allocation and control.
Technical Specifications
The meters offer high accuracy (±0.5% RDG for current/voltage) and comply with EN62053-21 and EN50470-3 standards. They feature a self-power supply, IP51 front protection, and RS485 communication support.
Advantages
The EM series meters are compact, have extended current inputs, and advanced communication capabilities, making them valuable for energy management and efficiency optimization.
General Specifications
The energy meter operates at 220VAC with a voltage range of -30% to +20% and a frequency of 50 Hz. It has a power consumption of ≤ 1.0W and ≤ 8VA, compliant with EMC and mechanical standards, and operates within a temperature range of -25 to +55°C.
Measuring and Input Specifications
The meter supports digital or serial output and digital input with an insulation rating of 4 kV. It measures current, voltage, power, frequency, and power factor with high accuracy, adhering to Class B standards, and can handle continuous current overloads up to 100A.
Display and Interface
The meter features a backlit LCD display with a touch keypad, capable of displaying energy readings up to 6 digits and variable readings up to 2 digits. It supports RS485 Modbus communication and optional M-bus ports for data transmission.
Energy Measurement
The device measures both active and reactive energy, supports dual tariff management, and can be programmed to focus on imported energy only.
Compliance and Safety
The meter complies with EN62053-21 and EN50470-3 standards for accuracy and safety. It is designed for DIN-rail mounting with IP51 front protection, suitable for indoor use with a storage temperature range of -25°C to +80°C.
Additional Features
The meter includes a pulse output option and supports a maximum of 247 transceivers on the same bus. It has a data refresh time of 1 second and can handle up to 50 words in a single read command.
Overview
The document provides detailed specifications and features of a three-phase energy meter designed for active energy metering and cost allocation, including system and phase variables, accuracy, display features, and communication capabilities.
Specifications
  • System Variables: kW, kvar, kVA, VLN, PF, Hz
  • Phase Variables: kW, kvar, kVA, VLN, A, PF
  • Dimensions: 3-DIN module
  • Protection Degree: IP51 (front)
  • Communication: RS485 Modbus port
  • Display: Backlit LCD with 3x 8-digit readout
Accuracy and Measurement
  • Active Energy: Class 1 accuracy, 5(65)A start-up current at 20mA
  • Reactive Energy: Class 2 accuracy, 5(65)A start-up current at 20mA
  • Measurement: kWh and kvarh for imported/exported energy, kWh per phase
  • Error Limits: Percentage error limits for class index B range from +1.5% to 0% depending on current and power factor
Product Features
  • Energy Metering: Suitable for active energy metering and cost allocation with dual tariff management
  • Mounting: DIN-rail mounting with IP51 front protection
  • Pulse Output: Optional pulse output proportional to active energy measured
Environmental and Safety Standards
  • Operating Temperature: -25 to +65 °C, indoor use
  • Storage Temperature: -30°C to +80°C
  • Overvoltage Category: Cat. III
  • Insulation: 4000 VAC RMS between measuring inputs and digital/serial output
  • Compliance: EN50470-3 and EN62053-23 standards
Additional Features
  • Display and Keypad: Touch key with memory energy storage and programming parameters
  • Digital Inputs: 5V input with specific impedance and resistance requirements
  • Output Specifications: RS485 serial port with a maximum of 247 transceivers on the same bus
General Specifications
The document outlines specifications for an energy meter system, supporting both two-phase (3-wire) and three-phase (3-wire and 4-wire) configurations. It includes a RS485 Modbus communication port for connecting additional instruments in parallel, with a maximum of 247 transceivers on the same bus. For connections exceeding 1000 meters, a signal repeater is recommended.
Electrical Specifications
Operating temperature ranges from -20 to +70°C for indoor use, with storage temperatures from -25°C to +80°C. The system is categorized under Overvoltage Category III and features a dielectric strength of 4000 VAC RMS for one minute between measuring inputs and digital/serial outputs.
EMC and Safety Compliance
The system is designed to withstand electrostatic discharges, electromagnetic fields, bursts, conducted disturbances, surges, and radio frequency interference. It complies with relevant safety and metrology standards.
Display and Measurement
The energy meter features a backlit LCD display showing total active and reactive energy, phase-specific energy parameters, and power metrics. The display content includes absolute, positive, and reverse energy, active and reactive power, voltage, current, power factor, grid frequency, and Modbus communication details.
Physical and Installation Details
The housing is designed with a front protection degree of IP51 and weighs approximately 240 grams. The system supports various cable cross-sections and terminal connections, with specific mounting instructions provided.
Communication and Wiring
The RS485 Modbus communication requires termination on the last network device, with specific wiring diagrams provided for correct installation. The document emphasizes the importance of proper termination and the use of signal repeaters for long-distance connections.
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Catalog excerpts

EM Energy Meter Leading Manufacturer Protects Solar Power Safety-1

Energy Meter EM Energy Meter Leading Manufacturer Protects Solar Power Safety

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EM Energy Meter Leading Manufacturer Protects Solar Power Safety-2

ENERGY METER EM Energy Meter • Today, energy costs are impacting more and more importantly on the budgeting of any economic activity. To ensure optimum energy efficiency, the only way is by measuring the energy consumption of different loads in departments, offices, and so on.For a simple house, the need is to check and prove its efficiency class by calculating and allocating the correct energy costs for heating and/or heat pump, whereas for a big building such as a hospital, a detailed energy profile of each ward or department and of each service (lifts, HVAC,heating, gas distribution system)...

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EM Energy Meter Leading Manufacturer Protects Solar Power Safety-3

TOUCH TECH display • The EM are the first energy analysers in the market to have the TOUCH TECH system, a display-integrated touch key-pad. The TOUCH TECH display makes page scrolling and programming simpler and more straightforward, avoiding all the issues related to mechanical keys. In this way the LCD area, backlit after the first touch, can display a complete set of variables and data. Compact size, extended current inputs • Thanks to their innovative measuring technique, the EM can manage a high direct current in a very compact housing, with an extended accuracy range.The nominal current...

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EM Energy Meter Leading Manufacturer Protects Solar Power Safety-4

ENERGY METER Type EMAM Description of Drawing Parameters Product Benefits • Single phase energy analyzer • Class 1 (kWh) according to EN62053-21 • Class B (kWh) according to EN50470-3 • Accuracy ±0.5% RDG (current/voltage) • Direct current measurement up to 45AAC • Backlit LCD display with integrated touch key-pad • Energy readout on display: 6 digit • Variable readout on display: 2 digit • Energy measurement: kWh ; kWh+by 2tariffs • System variables, kW, kvar, V, A, PF, Hz, kWdmd, kWdmd peak • Self power supply • Dimensions: 1-DIN module • Protection degree (front): IP51 • RS485 Modbus port...

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Input specifications • Rated Inputs Current type Current range Nominal voltage • Resolution 1-phase loads direct connection 5(45)A 220VLN AC (AV8 option) • Accuracy AV8 Energies Active energy Current Voltage Power Frequency PF Energies (positive) Energies (negative) • Display and touch key-pad Display/serial communication 0.001 A 0.01 V 0.01 kW or kVar 0.1Hz 0.01 0.01 kWh or kvarh 0.01 kWh or kvarh • Energy additional errors Influence quantities Temperature drift Sampling rate Reactive energy Start-up current Start-up voltage Type Read-out Touch key Max. and Min. indication Memory energy storage...

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ENERGY METER General specifications Parameter introduction • Operating temperature -20 to +70 °C, indoor,(R.H. from 0 to 90% non-condensing @ 40°C) Storage -25°C to +80°C (R.H. < 90% noncondensing @ 40°C) Cat. III Overvoltage category Insulation 4000 VAC RMS (for 1 minute) between measuring inputs and digital/ serial output (see table) 4000 VAC RMS 4000 VAC RMS for Dielectric strength 1 minute • Standard compliance Safety Metrology Electrostatic discharges Immunity to irradiated electromagnetic fields • Connections Cable cross-section area Other terminals Immunity to conducted disturbances Surge...

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Display pages Display content introduction • NO Total kWh Total kWh+ (positive) Total kWh- (exported) Total kvarh Total kvarh+ (positive) Total kvarh- (negative) Peak power kWh+ (positive) T1 Peak power kWh+ (positive) T2 Peak power kWh+ (positive) T3 Peak power kWh+ (positive) T4 V A • Variable Hz kW kvar kva PF CODE IMP Serial number Communication address Baud rate Software version Wiring diagrams Drawing introduction Rs485 Modbus communication port Interface diagram 1. Display Backlit LCD display with touch key-pad. Upper part: enter 2. LED LED proportional to kWh reading

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ENERGY METER Type EMBM Description of Drawing Parameters Product Benefits • Single phase energy analyzer • Class 1 (kWh) according to EN62053-21 • Class B (kWh) according to EN50470-3 • Accuracy ±0.5% RDG (current/voltage) • Direct current measurement up to 100AAC • Backlit LCD display (3x 8-digit) with integrated touch key-pad • Energy readout on display: 6 digit • Variable readout on display: 2 digit • Energy measurement: kWh and kvarh (imported/exported); kWh+ by 2 tariffs • System variables, kW, kvar, V, A, PF, Hz, kWdmd, kWdmd peak • Dimensions: 2-DIN module • Pulse output (optional, by...

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Input specifications • Rated Inputs Current type Current range Nominal voltage • Resolution 1-phase loads direct connection 5(100)A 220VLN AC • Accuracy Energies Active energy Current Voltage Power Frequency PF Energies (positive) Energies (negative) • Display and touch key-pad Display/serial communication 0.001 A 0.01 V 0.01 kW or kVar 0.1Hz 0.01 0.01 kWh or kvarh 0.01 kWh or kvarh Type Read-out Touch key Max. and Min. indication Variables Memory energy storage Energy • Energy additional errors Reactive energy Influence quantities Temperature drift Sampling rate Start-up current Start-up voltage...

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ENERGY METER General specifications Parameter introduction • Operating temperature -20 to +70 °C, indoor,(R.H. from 0 to 90% non-condensing @ 40°C) Storage -25°C to +80°C (R.H. < 90% noncondensing @ 40°C) Cat. III Overvoltage category Insulation 4000 VAC RMS (for 1 minute) between measuring inputs and digital/ serial output (see table) 4000 VAC RMS 4000 VAC RMS for Dielectric strength 1 minute Dimensions Material Cable cross-section area Sealing covers Mounting EMC Other terminals • Standard compliance Safety Metrology • Protection degree Front Screw terminals (cable inputs) • Weight • Self power...

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Display pages Display content introduction • NO Total kWh Total kWh+ (positive) Total kWh- (exported) Total kvarh Total kvarh+ (positive) Total kvarh- (negative) Peak power kWh+(positive) T1 Peak power kvarh+ (positive) T1 Peak power kWh+ (positive) T2 Peak power kvarh+ (positive) T1 U A Hz • Variable kW Kvar Kva PF CODE IMP Communication address Baud rate Software version Serial number Wiring diagrams Drawing introduction Rs485 Modbus communication port Interface diagram 1. Display Backlit LCD display with touch key-pad. Upper part: enter 2. LED LED proportional to kWh reading

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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.
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