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 9,999,999.9 kWh, the meter automatically resets 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