Radiometric devices >> voltmeters

V7-28 (b7-28) Voltmeter V7-28 Universal.

V7-28 (b7-28)

34 999 RUB
13 999 UAH
available:
4 pieces

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Voltmeter V7-28 universal (V728, V-7-28, V 7 28, V7-28, V-728, b728, b-7-28, b-728, b 728)
 
Voltmeter V7-28 universal designed to measure: voltage and dc voltage and the AC resistance.
A voltmeter can be used for monitoring and measuring these parameters in the production of radio and electroradioelements at scientific and experimental research in the repair and maintenance work.
 
Technical characteristics of the devices voltmeters V7-28 universal:
 
The basic error of measuring DC voltage of positive and negative polarity in the range from 1 mV to 1000 V:
- In the range of measurement 0.1 V, 1V, 10V - ± (0,025 +0,005 (Un / Ux))%;
- At the limits of measurement 100V, 1000V - ± (0,03 +0,005 (Un / Ux))%;
The main error of the instrument voltmeter V7-28 universal digital for 16 hours after a two-hour samoprogreva and external calibration as - ± (0.005 0.005 δo (Un / Ux))%;
The main error in measuring the AC voltage in the range of 100mV to 300V:
- At the limits of measurement 1B, 10B:
- In the frequency range from 20Hz to 60Hz - ± (0,25 +0,15 (Un ~ / Ux))%;
- In the range of frequencies from 60 Hz to 5 kHz - ± (0,15 +0,05 (Un ~ / Ux))%;
- In the range of frequencies from 5 kHz to 20 kHz - ± (0,35 +0,05 (Un ~ / Ux))%;
- In the frequency range from 20kHz to 100kHz - ± (0,5 +0,1 (Un ~ / Ux))%;
- At the limit of measurement 100B:
- In the frequency range from 20Hz to 60Hz - ± (0,25 +0,15 (Un ~ / Ux))%;
- In the range of frequencies from 60 Hz to 5 kHz - ± (0,2 +0,05 (Un ~ / Ux))%;
- In the range of frequencies from 5 kHz to 20 kHz - ± (0,5 +0,05 (Un ~ / Ux))%;
- In the frequency range from 20kHz to 100kHz - ± (0,9 +0,1 (Un ~ / Ux))%;
- At the limit of measurement 300B:
- In the frequency range from 20Hz to 60Hz - ± (0,25 +0,15 (Uk ~ / Ux))%;
- In the range of frequencies from 60 Hz to 5 kHz - ± (0,25 +0,05 (Uk ~ / Ux))%;
- In the range of frequencies from 5 kHz to 20 kHz - ± (0,5 +0,05 (Uk ~ / Ux))%;
- In the frequency range from 20kHz to 100kHz - ± (0,9 +0,1 (Uk ~ / Ux))%;
The basic error of measurement device universal voltmeter V7-28 digital DC resistance in the range from 0.001 ohm to 10 megohms:
- To within 0.1 ohm, 1 ohm, 10 ohm, 100 ohm, 1000 ohm - ± (0,04 +0,01 (Rp / R));
- At the limit of 10 000 ohms measurements - ± (0,05 +0,01 (Rp / R));
The basic error of measurement instrument voltmeter V7-28 universal digital ratio of two DC voltages of the same or opposite polarity:
- In the range U = 0.1 V, 1V, 10V - ± (0,01 +0,01 (Sn / S)) (10/Uu);
- In the range U = 100V, 1000V - ± (0,015 +0,01 (Sn / S)) (10/Uu);
The basic error of measurement instrument voltmeter V7-28 universal digital AC voltage relationship to a constant voltage:
- At the limits of Un ~ = 1V, 10V:
- In the frequency range from 20Hz to 60Hz - ± (0,25 +0,15 (Sn ~ / S) (10/Uu));
- In the range of frequencies from 60 Hz to 5 kHz - ± (0,15 +0,05 (Sn ~ / S) (10/Uu));
- In the range of frequencies from 5 kHz to 20 kHz - ± (0,35 +0,05 (Sn ~ / S) (10/Uu));
- In the frequency range from 20kHz to 100kHz - ± (0,5 +0,1 (Sn ~ / S) (10/Uu));
- To within ~ Un = 100V, 300V:
- In the frequency range from 20Hz to 60Hz - ± (0,25 +0,15 (Sn ~ / S) (10/Uu));
- In the range of frequencies from 60 Hz to 5 kHz - ± (0,2 +0,05 (Sn ~ / S) (10/Uu));
- In the range of frequencies from 5 kHz to 20 kHz - ± (0,5 +0,05 (Sn ~ / S) (10/Uu));
- In the frequency range from 20kHz to 100kHz - ± (0,9 +0,1 (Sn ~ / S) (10/Uu));
Exceeding the limits of measurement device universal digital voltmeter V7-28 - 20%;
The maximum voltage between the terminals and Nhu Lhu input cables K1 and K2 in the measurement of resistance - 17V;
Overload for one minute:
- DC:
- In the range of measurement 0.1 V, 1V, 10V - 300V;
- At the limits of measurement 100V. 1000V - 1200V;
- AC - 300V;
Output device voltmeter V7-28 universal digital device to an external tsifropechatayuschee:
- The voltage level output signal corresponding to a logical 0 - no more than 0.4 V;
- The voltage level output signal corresponding to a logical one - not less than 2.4;
Input impedance when measuring DC voltage - at least 10 9 ohms;
Input current instrument voltmeter V7-28 universal digital - no more than 1 ∙ 10 -10 A;
Power supply AC 220V ± 22V 50Hz ± 0,5 Hz and harmonic content up to 5%;
Dimensions - 335h180h345mm;
Weight devices voltmeters V7-28 universal digital - 9kg.


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