AC MilliVolt Meter

This is a dual-channel (TVT-322), signal-channel (TVT-321) electronic voltmeter sets having the function of AC millivolt meter in a single cabinet. Two-pointer meter allows easy dual measurements and inter channel comparsions.
This is a wideband, high sensitive voltmeter for use anywhere voltage measurements are made. The easy-to-use voltmeter provides frequency response as wide as 5Hz to 1MHz(TVT-322), 10Hz to 1MHz (TVT-321), measurable range from 300 microVolt to 100V, and input impedance of 1MOhm.

TVT-322   



TVT-322
Dual Channel AC Millivolt Meter
  Main Features

    Small-sized compact construction is easy
      to carry and large-sized tow-pointer meter
      is easy to read.
    Four-scale dial plate and red and black pointers
      allow quick, and accurate voltage reading.
    Precise amplifiers are precisely calculated in
      open loop gains and are negative feedback
      through meta film resistors as accurate as 1%.
    Amplifier characteristics therefore are from
      secular change.
    Input impedance is as high as 1MOhm on all ranges
      and its parallel capacitance less than
      45pF.
    Indirect attenuator switching by relay and FET
      (field-effect transistor) switch provides higher
      reliablity, signal-to-noise ratio, and inter-channel
      crosstalk than most previous direct method
      of rotary switch.
    Two channel range setting can be made either
      individually or together (in interlocked manner)
      (TVT-322)
 

 

TVT-321   



TVT-321
Single Channel AC Millivolt Meter
  Main Features

    Small-sized compact construction is
      easy to carry and large-sized tow-pointer meter
      is easy to read.
    Four-scale dial plate and red and black
      pointers allow quick, and accurate voltage reading.
    Precise amplifiers are precisely calculated
      in open loop gains and are negative feedback
      through meta film resistors as accurate as 1%.
    Amplifier characteristics therefore are
      from secular change.
    Input impedance is as high as 1MOhm on
      all ranges and its parallel capacitance less than
      45pF.
    Indirect attenuator switching by relay
      and FET (field-effect transistor) switch provides
      higher reliablity, signal-to-noise ratio, and
      inter-channel crosstalk than most previous direct
      method of rotary switch.
    Two channel range setting can be made
      either individually or together (in interlocked manner)
      (TVT-322)