Millivoltmeter V3-38A (V3 38A, V338A, b3-38a, b338a, b3 38a)
Designed to measure the rms AC voltage sine wave of 0.1 mV to 300 V in the frequency range from 20 Hz to 5 MHz.
The span value of 1 mV, 3mV, 10mV, 30mV, 100mV, 300mV, 1V, 3V, 10V, 30V, 100V and 300V
The basic error of ± 2,5%
Millivoltmeter V3-38A is designed to measure the rms AC voltage sine wave of 0.1 mV to 300 V in the frequency range from 20 Hz to 5 MHz.
The operating conditions of use of the instrument Millivoltmeter V3-38A: ambient temperature from 10 ° to 35 ° C;
relative humidity. air 80% at 25 ° C, atmospheric pressure from 86 to 106 kPa (650 to 800 mm Hg. st.) mains (220 ± 22), frequency (50 ± 0,5) Hz .
Technical Data is a
Measurement range of the instrument voltages from 300V to 100mkV overlapping ranges with upper limits of 1 mV, 3mV, 10mV, 30mV, 100mV, 300mV, 1V, 3V, 10V, 30V, 100V and 300V. Instrument measures the voltage in the frequency range from 20 Hz to 5 MHz .
The range of frequencies of the device Millivoltmeter V3-38A has a working range of frequencies:
I from 45 Hz to 1 MHz (on);
II from 20 to 45 Hz (except);
III St.. 1 to 3 MHz (on);
IV St.. 3 to 5 MHz (inclusive).
Frequency of calibration of 1 kHz. Primary instrument error, expressed as a percentage of the upper limit established by sub-band measurements, no more than ± 2,5%.
Instrument error Millivoltmeter V3-38A in the working frequency regions, expressed as a percentage of the upper limit of the established sub-band, and the change of readings within the operating frequency ranges with respect to the frequency of calibration readings in percent, do not exceed the values shown in Table. 1.
Change readings, caused by changes in temperature. Ambient air from the normal to any temperature within the operating temperature range does not exceed the basic error for every 10 ° C change in temperature.
Change readings Millivoltmeter V3-38A, expressed as a percentage of the upper limit established by sub-band, rejecting the shape of the measured voltage from the sinusoidal (THD less than 20%) is less than half the value of the harmonic content in percent.
The deviation of the index from scratch, due to the intrinsic noise does not exceed 5% of the upper limit established by sub-band measurements with closed-circuit input.
The device retains its specifications within the rules, if its input DC voltage is not more than 250-V
Response time the device is less than 4 seconds.
Millivoltmeter V3-38A save tons of basic error handling five times after exposure to stress, but not more than 600 V.
Active impedance device, measured at a frequency of 45 Hz, less than 5 megohms at subbands upper limits 1-300mV and at least 4 Mohms subbands upper limits in 1-300
Input capacitance unit is not more than 25 pF subbands upper limits of 1-300 mV and not more than 15 pF subbands upper limits of 1-300 W.
The capacity of each of the connecting cable is not more than 80 pF. Warm-up time 15 min. Millivoltmeter V3-38A retains its specifications when powered from the mains AC voltage (220 ± 22) V (50 ± 0,5) Hz.
The power consumed by the network at a nominal voltage not exceeding 6 VA. Device allows continuous operation in the working conditions for 8 hours
Dimensions, not more 152h206h275 mm.
Dimensions of transport container 526h542h396 mm.
Unit weight Millivoltmeter V3-38A or less than 3.2 kg.
Weight with transport container is not more than 25 kg.