Digital Power Meter - MA / MV

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Model MA & MV series are designed for general performance to accept AC input signals & convert AC to DC of average responding to scale rms reading. Model MAR & MVR series, a true-root-mean-square conversion unit, are able to measure a distorted sinusoidal with harmonics or periodical of non-sinusoidal signal. The unit type of ration input ranges are defined to accept a secondary signals from PT or CT & calibrated to a primary reading & the named type of input ranges just directly follow inputs as a display reading. The designed specifications of the units, truly a real power system design, compliant ANSI-IEEE & IEC, VDE standards with full protection for surge intrusion & accident over input assuring reliable operation.
Digital Power Meter - MA / MV

 

Features
  • True power system design complaints
  • ANSI-IEEE, IEC & VDE standards
  • High over capability
  • Available of 3-3/4 & 4-1/2 digits
  • High accuracy of 0.2% fs
  • Measurement of distorted waveform signals
  • Super rate display of 0.56"
Model & Ordering

      

      
Specification
  • Accuracy (23 + 3oC)
    • 0.2% fs
  • Stability
    • Temperature coefficient < 50 ppm per degree C
    • Long term draft < 0.2% per year
  • Digits & counts
    • 3-3/4 digits of 3999 counts maximum, 4-1/2 digits 19999 counts maximum
  • Display
    • 0.56" super rate LED
  • Response time
    • Sample rate 1 of per sec typically
  • input burden
    • 0.25 VA maximum
  • input over
    • Current input : 3 * rating-continuous, 10 * rating-30 sec, 25 * rating-3 sec
    • Voltage input : maximum continuous of 750V or 3 * rating which ever great
  • Frequency
    • 48-400 Hz
  • Dielectric strength
    • 2.5KV rms / 1 minute, all terminals to reference ground
    • 2KV rms / 1 minute, input terminals to power terminals
  • Surge test
    • ANSI C37.90.1 / 1989, IEC 255-3 (1989)
  • Impulse voltage
    • Impulse voltage 1.2 * 50 us 4KV
    • Oscillating wave 0.5 us-100 KHz 3KV & 1MHz-0.25 ms 2.5KV
  • Operating condition
    • Operating temperature range -10 to 55oC, humidity 0-99% RH non-condensed
    • Storage -25 to 70oC, 20-99% RH non-condensed
  • Auxiliary power
    • AC / DC version < 3.5 VA, DC option version + 20% < 5 Watts