CMM-R5M
Data Logging Measurement Unit

The CMM-R5M measurement center allows measuring the main electrical parameters of the network and ensures bidirectional energy metering. It is equipped with 4 voltage measurement inputs and 3 current measurement inputs for flexible sensors (Rogowski coils).

  • DIN rail mounting
  • Accuracy: Class 0.5S for active energy
  • Harmonics up to the 25th order
  • 3 tariffs (internal clock)
  • 32GB SD memory
  • RS-485 Modbus interface
  • 1 Relay Output
  • Compatible with M-VISU
Standards:
  • IEC 62052-11
  • IEC 61557-12
  • IEC 62053-21/22/23
  • IEC 50470-1/3
  • IEC 61010-1/2/31
Certifications

Description

The CMM-R5M measurement center allows measuring the main electrical parameters of the network and ensures bidirectional energy metering. It is equipped with 4 voltage measurement inputs and 3 current measurement inputs for flexible sensors (Rogowski coils).

Additionally, it features an RS-485 communication port with Modbus protocol, making it easily integrable into any supervision system or energy management system for monitoring installations. Primarily designed for energy management applications and monitoring systems, it is suitable for mounting on DIN rails (distribution boards in commercial or residential buildings) or within drawers of removable switchboards (industrial settings, infrastructure, etc.).

The CMM-R5M measurement unit comes standard with an SD-type memory, with a capacity of 32GB. Data is recorded in CSV format, allowing direct reading from spreadsheet software like Excel or similar tools. Alternatively, users can utilize the M-VISU data analysis software from MEIER Energy, provided free of charge.

Applications

  • Data collection

  • Energy management

  • Remote monitoring

Main features:

Measurement:
  • V/A/P/Q/S/F/PF
  • Maximeter of currents and active power
Power quality:
  • THDU and THDI
  • Up to the 25th harmonic
Energy measurement:
  • Bidirectional energy
  • Reactive energy in 4 quadrants
  • Energy by tariff (3 tariffs)
Special features:
  • 32 GB SD memory
  • 1 relay output
  • Current measurement inputs with Rogowski coil
  • Internal clock

Functions

Network

  • TN, TT, IT networks

  • Single-phase or Three-phase

  • BT et HT

Communication

  • RS485 Interface

  • Modbus-RTU Protocol

Accuracy

  • Active energy: 0.5S

  • Voltage: 0.2%

  • Current : 0.5%

Technical characteristics

Display

  • 2-inch color TFT

Accuracy

  • V/A: 0.2%

  • P / Q / S / PF: 0.5%

  • F: 2%

  • +/- kWh: Class 0.5S

  • +/- kVarh: Class 2

Input voltage

  • Nominal value: 100 – 500V(LL)

  • Overvoltage: Continuous : Continuous : 1.2Vn. Instantaneous: 2Vn/10s

  • Load: <= 0.1VA (per phase)

  • Impedance: >= 1.7MΩ

  • Frequency: 45Hz~65Hz

Input current
  • Rogowski coil RCM16 : 100A-85mv/A @ 50HZ± 0.5%
  • Rogowski coil RCM36 : 600A-85mv/A @ 50HZ± 0.5%
  • Rogowski Coil RCM100: 1000A-85mv/A @ 50HZ± 0.5%
  • Rogowski coil RCM150: 3000A-85mv/A @ 50HZ± 0.5%
  • Rogowski coil RCM200: 6000A-50mv/A @ 50HZ± 0.5%
Current input characteristics

  • Nominal value – Primary current: Adjustable from 0.1A to 9999A

  • Overload: 600mv during 10s/h

  • Measuring range: 1/225mv – 333mv

Power supply
  • Operating range: 85~265V AC / 50~60Hz / 100~370V DC

  • Consumption: <= 5VA

Communication port

  • RS485, Modbus-RTU, 2-wire, up to 57600bps

Relay output

  • 1 relay output

Ambient conditions

  • Operating temperature: -25°C to +55°C

  • Storage temperature: -40°C to +85°C

  • Relative humidity: 95% RH at 50°C(under-condensation)

  • Pollution degree: 2

  • Overvoltage category: Cat. III for networks up to 277/480VAC

  • Dielectric strength: According to IEC61010-1, Double insulation of the front panel

  • Altitude: 3000m Max

  • Degree of protection: IP20 according to IEC 60529

Electromagnetic compatibility
  • Electrostatic discharge: Level IV(IEC61000-4-2)
  • Radiation immunity: Level III (IEC61000-4-3)
  • Transient immunity: Level IV (IEC61000-4-4)
  • Lightning immunity: Level IV (IEC61000-4-5)
  • Conducted immunity: Level III (IEC61000-4-6)
  • Immunity to power frequency magnetic fields: 0.5mT (IEC61000-4-8)
  • Conducted and radiated emissions: Class B (EN55022)

Installation and Connection

Measured and displayed parameters

Dimensions

Measured and displayed parameters

Product Documentations

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