Microtest 7110 Single-Phase Power Meter

Microtest 7110 Single-Phase Power Meter




Microtest 6917 Motor Stator Testing System


Microtest 7120 Single-Phase Power Meter

Microtest 7110 Single-Phase Power Meter

ผู้ผลิต: Microtest
รหัสสินค้า: 7110
สถานะสต๊อก: Pre-Order
File Size
Single-Phase Power Meter_7110_7120.pdf 291.56KB Download

Microtest 7110/7120 Single-Phase Power Meter

single phase power meter 7110/7120 has the wave crest factor of the input current as CF3/CF9 and able to measure all the values within measuring ranges. They have the fastest auto-shift speed amongst other testers of the same level, and the measuring span can be locked on rapidly to perform accurate power consumption analysis. The measuring range of both PM7110/7120 are 0.001W~16KW, and they are able to measure AC power consumption containing DC and obtain power factors with higher accuracy while analyzing the current signals from devices with asymmetrical positive and negative waveforms. All the electronic devices on the market must comply with EU requirements for standby power consumption, and the manufacturers are making their effort to lower it as best as they can. PM7110/7120 are able to help the manufacturers to analyze power and energy consumption precisely and perform long-hours survey with a PC.


  • For AC / DC power measure / watt-hour meter
  • Wide range 0.001W ~ 16KW
  • Connection software attached
  • Current CF3/CF9
  • Standby Power D.P.I. of 0.001W
  • With crest factor ratio display
  • Up to the 50 orders harmonic analysis capability
  • 1000 sets of measurement data storage space
  • Harmonics 

     Analysis baseTo achieved stable fundamental frequency analysis by voltage or current (non-inverter)
     Frequency Range45Hz ~ 440Hz
     FFT Data Length1024
     FFT Data Format32 bits
     Measurement Projects

    1-50 THD, 1-50 level voltage and current  V [n], A [n]
    1-50 level voltage and current distortion percentage V [n%], A [n%]
    1-50 level watts W [n]
    1-50 level watts distortion percentage Watt W [n%]
    1-50 level voltage and current angle DEG [n]
    IrmsWatt PF


    Model Name7110 7120
    Power SupplyVoltage 100 ~ 240Vac
     Frequency 50/60Hz

    Seven-segment display

    InterfaceRS232 RS232+GPIB
    Flash Memory6 Sets
    EnvironmentTemperature:23℃±5℃   Humidity: 20%~80% 
    Dimension (W*H*D)335x103x335 mm
    Weight 1.85 Kg

    Measurement bandwidth

    DC 15Hz ~ 10KHzDC 15Hz ~ 100KHz
    Harmonic (Option)Yes/NAYes/NA




    FixtureF71201 TEST BOX

    Measurement Data

    Frequency Measurement ModeTo achieved stable base frequency measurement(variation less than 1%)by voltage or current (non-inverter)
    Frequency RangeDC,15Hz~10KHzDC,15Hz~100KHz
    Data LengthDual 4096x16 RAM for voltage & current
    ADC Resolution16 bits 
    Sampling Rate

    AC 50Hz / 60Hz basic sampling rate 100 KSPS / 120 KSPS

    Arithmetic PrecisionWatt/VRMS/IRMS/MEAN/PF/Deg/Line filter 32bits
    Frequency Filter500Hz cut off, digital chip filter based on 25MHz
    Signal Filter

    500Hz -3db digital filter based on Butterworth

    50Hz -0.03% reading, 60Hz -0.05% reading

    Frequency Acquisition ModeVoltage / current 100MHz baseband digital dynamic meter chip
    Phase Lead DetectionSubject to the current, analog / digital hybrid detecting (error less than 5 degrees)


     Current (fixed / auto)0.01A0.03A0.1A0.3A1A3A10A20A
     Voltage (fixed / auto)10V30V100V300V600V

    RMS/MEAN Mode Voltage & Current Accuracy (23℃±5)

    >=15 Hz, f  45Hz±(0.1% of reading + 0.4% of range)
    >45 Hz,  66 Hz±(0.1% of reading + 0.1 % of range)
    >66 Hz,  1 kHz±(0.1% of reading + 0.2 % of range)
    >1 kHz,  10 kHz±(0.07*f % of reading + 0.3% of range)
    >10 kHz, 100 kHz±(0.5% of reading + 0.5% of range) ±[{0.04×(f–10)}% of reading]

    F unit is 1KHz

    When the L-FILTER sets as ON:45Hz~66Hz frequency range allowable error-0.03 %~-0.05 of reading

    When the AC is measured, if the fundamental frequency exceeds 200Hz, the F-Filter is required to be turned off in order to measure the most accurate value

    **When the frequency range is more than 10KHz, the 7120 starts to support

    DC Mode Voltage & Current Accuracy (23℃±5)

    10V~600V±0.2% reading ± 0.2% of range0.01A ~20A±{(0.2)% of reading + 0.2 % of range}±offset
    To add up the OFFSET errors of various files during measuring the DC current

    Power (W) Accuracy (23℃±5℃)


    AC power ranges (Auto or Manual)(40 ranges) range up to 16KW
    Maximum Power (W) value is determined by the highest range of voltage profile

    DC ±0.2% reading ± 0.5% of range

    15 Hz≦f

    45 Hz≦f≦66 Hz ±(0.1% of reading + 0.1 % of range)

    66 Hz<f≦1 kHz ±(0.2% of reading + 0.2 % of range)

    1 kHz<f≦10 kHz ±(0.4% of reading + 0.3 % of range)± [{0.06×(f)}% of reading]

    10 kHz<f≦100 kHz ±(0.5 % of reading + 0.5 % of range)±[{0.09×(f–10)}% of reading]

    Incidental allowable error conditions
    Signal filter error (AC) 

    Frequencies between 45 to 66 Hz: Add 0.3% of reading
    Frequency at 45 to 66 Hz: Add 1% of reading beyond

    CF9 error (DC)Add range tolerance * 3
    Accuracy effect of the phase error of the power

    When the power factor PF is 0, the error range of Watt is

    Situation 1: for 45 Hz<f

    Situation 2: for 45 Hz>f or f >66 Hz

    Add ±{(3.5 + 0.5 × f)% of VA} for up to 100 kHz as reference data

    The unit for frequency f is kHz.

    When the power factor is 0 < PF ≦error range

    When 0<PF≦1 (θ: phase angle of the voltage and current)

    for 45 Hz≦f≦66 Hz. Add ± power reading *{tan(θ)*(0.5)}%

    for f < 45 Hz, f >66 Hz. Add ± power reading *{ tanθ* (0.5×f+0.2) }%

    Error within 12 monthsAdd ±(0.5% of reading)

    Parameters Measurement Range

    Vrms0.1V ~ 600VPF0.000 ~ ±1.000
    Vdc0.1V ~ 600VDeg-180°~ +180°
    Irms0.1mA ~ 20ATHD0.01% ~ 99.99%
    Idc0.1mA ~ 20AHz15Hz ~100kHz
    W0.01W ~16KW  


    The measurements are utilized in environmental monitors, energy saving lamps, exchangeable power supplies, transformers, uninterruptible power systems, power tools, 3C electronic products, and home appliances, etc.


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