Radiometric devices >> voltmeters

V7-50 (b7-50, В7-50)

16 500 RUB
4 125 UAH
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Voltmeter V7-50 universal (V750, V-7-50, V 7 50, V 750)
 
Voltmeter V7-50 universal designed to measure basic electrical quantities: voltage and dc rms voltage and current sine wave, DC resistance.
 
Technical characteristics of the devices voltmeters V7-50 universal:
 
Operating conditions of use:
- Ambient temperature from 278K to 313K (from +5 º C to +40 ° C);
- Relative humidity up to 90% at temperatures up to 298K (+25 ° C);
- Pressure from 84kPa to 106.7 kPa (630mm.rt.st. 800mm.rt.st up.);
Power supply voltmeter V7-50 universal:
- 220V ± 22V 50Hz ± 0,5 Hz;
- From chemical sources, DC - 4 elements of A-316.
Normal conditions of use:
- Ambient temperature 293 K ± 5 K (20 º C ± 5 ° C;
- Relative humidity of 30% to 80%;
- Pressure from 84kPa to 106.7 kPa (630mm.rt.st. 800mm.rt.st up.);
Power supply voltmeter V7-50 universal:
- 220V ± 4,4 V, frequency 50 Hz ± 0,5 Hz;
- From chemical sources of DC voltage 5,5 V ± 0,5 V.
Voltmeter measures the voltage, current and resistance in accordance with the data given in Table. 1.
 
Table 1: Measurement instrument voltmeter V7-50 universal voltage, resistance, current, in normal conditions
Measurand
The range of measured values ​​of V, ohms, and A
The limits of measurement
DC voltmeter apparatus V7-50 universal
10 -4 -10 3
200mV, 2V
20V, 200V, 1000V
AC voltage frequency 20Hz-2kHz
10 -4 -10 3
200mV, 2V
20V, 200V, 1000V
AC voltage frequency 2kHz-10kHz
10 -4 -10 3
200mV, 2V
20V, 200V, 1000V
AC voltage frequency 10kHz-20kHz
10 -4 -2
200mV, 2V
DC output device voltmeter V7-50 universal
10 -7 -10
200mkA, 2mA, 20mA, 200mA, 2A, 10A
AC current frequency 20Hz-1kHz
10 -7 -10
200mkA, 2mA, 20mA, 200mA, 2A, 10A
Current AC 1kHz-5kHz
10 -7 -0,2
200mkA, 2mA, 20mA, 200mA
AC current frequency of 5 kHz, 10 kHz
10 -4 -2 ∙ February 10
200mkA, 2mA, 20mA, 200mA
DC resistance unit voltmeter V7-50 universal
10 -1 -2 ∙ July 10
200 ohms, 2000 ohms, 20 MW
2 k, 20 k ohms, 200 ohms
 
Determination of polarity in the measurements of voltage and DC automatically.
The limit of additional measurement error of the instrument voltmeter V7-50 universal, when the ambient temperature in the operating temperature range is less than half the limit of permissible basic error for every 10 K (10 ° C).
The limit of additional measurement error in exposure to high humidity 90% at 298K (25 ° C) does not exceed 2.5 Maximum permissible error of measurement.
The input impedance voltmeter for measuring DC voltage of at least 10 megohms.
The active component of the input impedance of the instrument voltmeter V7-50 universal in the measurement of AC voltage not less than 10 MW.
Input capacitance is less than 50pF.
The instrument voltmeter V7-50 universal stand for 1 minute reloading following signals:
- On the nest, "1000B" on the nest «±» in the measurement of stress - stress is equal to a finite value of the next higher range, and at the greatest range - voltage equal to 1.2 of full scale maximum range;
- On the nest "2B, 2 ohms" on the nest «±» 100V voltage in the measuring mode voltage and resistance;
- Two-time congestion in the measurement of force and alternating currents to the limits "200mkA", "2mA, 20mA, 200mA ', 2A, 4A, at the limit" 2000mA "12A, at the limit," 10A "- (with shunt).
Electrical isolation circuit AC power devices voltmeters V7-50 universal with respect to the slot «±» and screws Corps stands for 1 minute without breakdown and surface flashover test voltage of 1.5 kV (rms) 50 Hz ± 1 Hz.
Electrical isolation of nests "2B, 2 ohm," "1000B", with tap suitable for them inside the wires relative to the slot «±» and screws voltmeter casing can withstand for 1 minute without breakdown and surface flashover test voltage of 3 kV rms frequency 50 Hz ± 1Hz.
The voltmeter provides attenuation of external noise, 50 Hz ± 0,5 Hz and 100 Hz ± 0,5 Hz when measuring DC voltage:
- The normal form of not less than 40 dB in the amplitude of interference does not exceed 0.707 of full scale measuring range;
- The general form of at least 60 dB at 1 k unbalance input voltage noise and no more than 250V.
Time of measurement instrument voltmeter V7-50 universal does not exceed:
- 2c - when measuring the voltage and constant current;
- 8s - the measurement of voltage and AC current and DC resistance at all except within the "20 megohms";
- 25s - when measuring DC resistance at the limit of "20 megohms".
The voltmeter provides its specifications within the standards set in TU, after the time of establishing the mode of 3 minutes and 15 minutes when working in damp conditions.
Voltmeter keeps its specifications within the standards set in TU, when powered from chemical sources of DC voltage 3.8 V-6 V or AC 220V ± 22V, 50Hz ± 0,5 Hz and coefficient nonsinusoidality voltage curve, not to exceed of 5%.
The instrument voltmeter V7-50 universal permits continuous operation of the operating conditions during the time of at least 16 hours while maintaining its performance at the limits established in specifications.
Average Power in the measured resistance is less than 2MW.
The voltage drop in the measured resistance is less than 5V.
The power consumed by a voltmeter does not exceed:
- With mains power supply - 1.5 V ∙ A;
- When on chemical sources of DC - 0.12 Tues
Voltage industrial interference generated by the instrument voltmeter V7-50 universal and does not exceed:
- 60 dB - frequency range from 0.15 MHz to 0.5 MHz;
- 52dB - in the range of frequencies from 0.5 MHz to 30MHz.
MTBF voltmeter - not less than 10,000 hours.
Gamma-percent life of the instrument voltmeter V7-50 universal - at least 10 years old at j = 90%.
Overall dimensions, no more than:
- Voltmeter - 88X43X180mm;
- Transport packages - 233X348X143mm.
Weight voltmeter - not more than 0.45 kg.
The mass of the voltmeter in the transport packaging - no more than 5kg.
The manufacturer guarantees the quality of the instrument voltmeter V7-50 universal technical requirements specifications subject to user terms and conditions of storage, transportation, installation, operation, established specifications and operational documentation.

Photos V7-50 (b7-50, В7-50)

V7-50 (B7-50) device image.
V7-50 (B7-50) device image.
V7-50 (B7-50) delivery set.
V7-50 (B7-50) delivery set.
V7-50 (B7-50) front view.
V7-50 (B7-50) front view.
V7-50 (B7-50) side view.
V7-50 (B7-50) side view.
V7-50 (B7-50) rear view.
V7-50 (B7-50) rear view.
V7-50 (B7-50) overhead view.
V7-50 (B7-50) overhead view.
V7-50 (B7-50) bottom view.
V7-50 (B7-50) bottom view.


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