The millivoltmeter &quot;V3-38&quot; has been produced by the Tallinn plant &quot;Punane-RET&quot; since 1979. The VZ-38 millivoltmeter is designed to measure AC voltage from 0.1 mV to 300 V in the frequency range from 20 Hz to 5 MHz. The range of measured voltages from 100 μV to 300 V overlaps with the sub-ranges 1, 3, 10, 30, 100, 300 mV, 1, 3, 10, 30, 100, 300 V. Power supply from AC 220 V. Power consumption 10 V • BUT. Weight 3 kg. Since 1986 the plant has been producing V3-38A, V3-38B and V3-38V millivoltmeters.

The V3-38A millivoltmeter is designed to measure the rms sinusoidal AC voltage from 0.1 mV to 300 V in the frequency range from 20 Hz to 5 MHz. Measured voltage range: 100 μV - 300 V, overlapped by sub-ranges with upper limits 1; 3; 10; thirty; 100; 300 mV; one; 3; 10; thirty; 100; 300 V. Working frequency ranges: 45 Hz-1 MHz; 20-45 Hz; 1-3 MHz; 3-5 MHz, graduation frequency: 1 kHz. Basic error of the device, expressed as a percentage of the external limit of the set measurement subrange, not more than ± 2.5%. Power consumption: 6 V * A. Power supply: 220 V. Continuous operation of the device: 8 hours. Weight: 3.2 kg. Dimensions: 152x206x275 mm.

The V3-38B millivoltmeter is designed to measure the rms sinusoidal AC voltage and convert it linearly to DC voltage. The scales of the V3-38B device are calibrated in rms sinusoidal voltage and in decibels. Frequency range: 20Hz-5MHz. Range of measured voltages: 0.1 mV-300 V. Limits of basic voltage measurement error (in% of the final value of the sub-range): ± 2.5. Input impedance / capacitance: 4 MΩ / 25 pF (1-300 mV); 5 MΩ / 15 pF (1-300 V). Power supply: 220 V. Power consumption: 5.5 V * A. Dimensions: 152x206x275 mm. Weight: 3 kg.

The V3-38V millivoltmeter is designed to measure the rms sinusoidal AC voltage and convert the rms sinusoidal AC voltage to proportional DC voltage. The millivoltmeter has a 3.5 digit digital display. Measured voltage range: from 100 μV to 300 V overlapped by sub-ranges with upper limits of 1, 3, 10, 30, 100, 300 mV, 1, 3, 10, 30, 100 and 300 V. Frequency range: 20 Hz-5 MHz, graduation frequency: 1 kHz. The quantization step of the device is the unit price of the least significant digit of the digital indicator reading. Output impedance: 1000 ± 100 ohms. Power supply: 220 V. Dimensions: 155x209x278 mm. Weight: 2.5 kg.

Millivoltmeter `` B3-38 ''.