Ordering Info :
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GAD-201G |
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.
| 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 |
| Imput 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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