963, Jalan Perusahaan, Kawasan Perindustrian Prai, 13600 Prai, Pulau Pinang, Malaysia.
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AC Millivolt Meter
The GVT-427B is compact analog AC millivoltmeters ideal for low level voltage measurements beyond ordinary multimeter capabilities; 300uV sensitivity is maintained over 100V full scale. GVT-427 provides dual channel measurement, simultaneously or separately. Voltage scale is separated into 12 ranges, instantly accessible by a large rotary selector. The wide measurement range(10Hz~1MHz) and voltage(-70dB~+40dB) provide ample headroom for most applications.
GVT-427B / GVT-417B Specifications
The specifications apply when the GVT-427B / GVT-417B is powered on for at least 30 minutes under +20°C~+30°C.
| INPUT | |
| Voltage Range | 300μV ~ 100V in 12 ranges | 
| Decibel Range | -70dB ~ -40dB in 12 ranges | 
| Accuracy | ±3% of full scale | 
| Operating Mode | GVT-427B : Ch1 and Ch2 separately or simultaneously at Ch1 | 
| Frequency Response | 20Hz ~ 200kHz ±3%, 10Hz ~ 1MHz ±10% | 
| Impedance | 10MΩ, approx. 40pF | 
| OUTPUT | |
| Level | Approx. 0.1Vrms at full scale | 
| Distortion | 2% | 
| POWER SOURCE | |
| 
 | AC 115V/230V ±10%, 50/60Hz | 
| DIMENSIONS & WEIGHT | |
| 
 | 130(W) × 210(H) × 295(D) mm |