CMM-61 – Multifunctional Electrical Network Analyzer

The multifunctional electrical network analyzer CMM61 can measure all parameters of the electrical network in addition to bidirectional energy. It is equipped with an RS485-Modbus communication port, an energy measurement pulse output, as well as two relay outputs and two digital inputs for monitoring the measured departures.

  • Accuracy: 0.5s
  • Rogowski Coils (CMM61-R)
  • 4 Tariffs
  • Harmonics (CMM61h)
  • RS-485 Modbus Port
  • 1 Impulse Output
  • 2 Relay Outputs
  • 2 TOR inputs
  • Dimensions 96x96 mm
  • IP54 (front panel)
Standards:
  • IEC 62052-11
  • IEC 61557-12
  • IEC 62053-21/22/23
  • IEC 50470-1/3
  • IEC 61010-1/2/31
Certifications

The multifunctional electrical network analyzer CMM61 can measure all parameters of the electrical network in addition to bidirectional energy. It is equipped with an RS485-Modbus communication port, an energy measurement pulse output, as well as one relay output and two digital inputs for monitoring the measured departures. It is designed to be mounted on the front panel of cabinets and adopts an ultra-slim design both on the front and back (total thickness less than 40 mm), in addition to being easy to install. As an advanced digital measuring device, it can be used in monitoring and supervising electrical installations as well as in electrical energy management systems. The device exists in two versions. One version is the standard CMM-61C equipped with current measurement inputs up to 5A, usable with traditional current transformers (ratio /1A or /5A). The other model is the CMM61-R, which is equipped with current measurement inputs suitable for flexible current sensors (Rogowski coils).

The CMM-61R is therefore the ideal solution for energy management system implementation projects in existing installations that cannot tolerate power interruption.

References

CMM-61-C

Current inputs /1A – /5A

CMM-61h-C

Current inputs /1A – /5A and harmonic measurement by order (up to 50th)

CMM-61-R

Rogowski current inputs (flexible coils)

CMM-61h-C

Rogowski current inputs and harmonic measurement by order (up to 50th)

Applications

Data collection
Energy management
Remote monitoring

Main features

Measurement:

  • V / A / P / Q / S / F / PF / DPF – RMS and fundamental

  • P/Q/S powers per phase

  • Total P/Q/S powers (CMM-61hR and CMM-61C)

  • Maximum Indicator (Demand)

  • Max./Min Value

Power quality:

  • Voltage and current THD

  • Harmonics up to the 51st order (CMM-61hR and CMM-61hC)

  • Unbalance

Energy measurement:

  • Bi-directional energy
  • Reactive energy on 4 quadrants
  • Energy by tariff

Inputs/Outputs:

  • 1 energy pulse

  • 2 digital inputs

  • 2 relay outputs

Installation and Connection

Measured and displayed parameters
Measured and displayed parameters

Measured and displayed parameters

Measured Values

  • Single voltages: V1, V2, V3 (and average value displayed on CMM-61h only).

  • Composite voltages: U12, U23, U31 (and average value displayed on CMM-61h only).

  • Current: I1, I2, I3 (and average value displayed on CMM-61h only).

  • Power: Active Power, Reactive Power, Apparent Power per phase (and total value displayed on CMM-61h only).

  • Energy: Imported Active Energy, Exported Active Energy, Imported Reactive Energy, Exported Reactive Energy, Apparent Energy.
    When the energy value exceeds 9999999.9kWh, the meter is automatically reset to “0”.

  • Power factor: Power factor PF and cos phi (fundamental power factor – DPF): Average value of each phase (and total value displayed on CMM-61h only).

  • Frequency: Network frequency.
Refresh Rate

  • Refresh Rate: 500ms

Harmonics

  • THD: Harmonic distortion rate THD of current and voltage for each phase

  • Harmonics : Current and voltage harmonics by order, up to the 51st order (CMM-61h only)

Max / min
  • Voltage: Per phase.
    (average value of the three phases displayed on CMM-61h only)
  • Current: Per phase.
    (average value of the three phases displayed on CMM-61h only)
  • Power: Active Power, Reactive Power, Apparent Power per phase.
    (total value displayed on CMM-61h only)
Unbalance

  • Voltage: value displayed on CMM-61h only.

  • Current: value displayed on CMM-61h only.

Demand / Maximum Indicator
  • Current: Per phase.
    (average value of the three phases displayed on CMM-61h only)
  • Power: Active Power, Reactive Power, Apparent Power per phase.
    (total value displayed on CMM-61h only)

Accuracy and Environment

Measurement Accuracy

  • Current (reading value)

    • CMM-61C: ±0.3%
    • CMM-61R: ±0.5%

  • Guaranteed current measurement accuracy range (full scale)

    • CMM-61C: 0.5% FS~100%
    • CMM-61R: 2% FS~100%

  • Voltage: 0.2%(30~600V AC)

  • Frequency: 0.01%(45~65Hz)

  • Power factor and Cos phi: ±0.005
  • Active and Apparent Power: IEC62053-22 – Class 0.5S
  • Reactive Power: IEC62053-21 – Class 2S
  • Active Energy: IEC62053-22 – Class 0.5S
  • Reactive Energy: IEC62053-21 – Class 2S
Environment

  • Operating Temperature: -25℃～+60℃

  • Storage Temperature: -40℃～+85℃

    • Relative Humidity: 5～95% RH, 50℃ (non-condensing)

    • Pollution Degree: 2

    • Overvoltage Capacity: CAT III 1000V, (indicated for network voltages below 277 / 480VAC))

    • Dielectric Strength: IEC61010-1

    • Altitude: 3000m Max

    • Protection Rating: IP20 Compliant with IEC 60629

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