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Automatic Distrotion Meter The GAD-201G distortion meter is aimed at total harmonic distortion (THD) and AC voltage measurement at audio frequency range, from 20 ~ 20kHz. Frequency and voltage value are displayed simultaneously on dual meters, with measurement range automatically switching over ful ...Read more
GW Instek - GAD-201G Automatic Distortion Meter

FEATURES :

  •  Automatic level & distortion measurements
  • Auto or Hold function selectable
  • 0.1% ~ 100% in 7 distortion measuring ranges
  • 20Hz ~ 20kHz in 3 continuous ranges
  • 400Hz, 1kHz, 10kHz 3 frequency spots
  • 1mVrms ~ 300Vrms in 12 ACV measuring ranges



  • Details
  • Specifications

Automatic Distrotion Meter

The GAD-201G distortion meter is aimed at total harmonic distortion (THD) and AC voltage measurement at audio frequency range, from 20 ~ 20kHz. Frequency and voltage value are displayed simultaneously on dual meters, with measurement range automatically switching over full scale. Shortcut keys are provided for commonly used 400Hz, 1kHz, and 10kHz measurement. Output terminal feeds basic waveform (X) and harmonic distortion (Y) to external monitoring device. Residual distortion, including hum and noise, is kept at a minimum level of 0.03%, making the GAD-201G ideal for high-class audio application.

GAD-201G Specifications

The specifications apply when the GAD-201G is powered on for at least 30 minutes under +20°C~+30°C.

 

DISTORTION MEASUREMENT

Range

0.1% ~ 100% full scale in 7 ranges (auto ranging)

Fundamental Frequency Range

20Hz ~ 20kHz in 3 continuous ranges with fine adjustment tuning
3 spots for 400Hz, 1kHz, 10kHz

Input Level

100mVrms ~ 300Vrms

Automatic Level Control Range

±10dB

Fundamental Rejection

> 80dB

Second Harmonic Accuracy

±1dB at basic frequency 20Hz ~ 20kHz

Residual Distortion

0.03% including hum and noise

AC VOLTAGE MEASUREMENT

Range

1mVrms to 300Vrms full scale in 12 ranges (auto-ranging)

Frequency Response

20Hz ~ 200kHz ±1dB

Input Impedance

100kΩ ±10%, 70pF (unbalanced)

Accuracy

±3% of full scale (@ 1kHz)

Residual Noise

10uV (input short circuit)

Output Level

X:1Vrms, Y:500Vrms at meter full scale

Output Impedance

Approx. 600Ω

POWER SOURCE

 

AC 100V/120V/220V/240V ±10%, 50/60Hz

DIMENSIONS & WEIGHT

 

310(W) × 165(H) × 300(D) mm
Approx. 4.6kg

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