V8-7 V8-7
4.9 63
V8-7 voltmeter universal (b87, b-8-7, b 8 7, b-87, b 87)
Designed to measure AC voltage ratio, consistently arriving at its input when working with measuring lines, polarization impedometer and work on the measurement of antenna patterns.The device can also be used to enhance the low-voltage alternating current for linear synchronous phase-sensitive conversion of these voltages to the DC with the ability to display digital outputs in relative units.The presence of the analog outputs for AC and DC power enables the device to use in automated systems of control and regulation of the ability to record the measurement result by a recorder;
Dimensions - 502h367h137mm.

Products catalog

Radiometric devices
voltmeters (V2-, V3-, V4-, V7-, V8-, V9-, F and others)
voltmeters V8
V8-7 voltmeter image.

Price:

on request

 

Get price

Product information updated 30 September 2024.

Found cheaper?

Let us know. Our price is the best. 

Warranty:

12 months.

Warranty extension up to 5 years. 

Terms of delivery:

To all regions of the country, international delivery. 

print

Product information updated 30 September 2024.

Found cheaper?

Let us know. Our price is the best. 

Warranty:

12 months.

Warranty extension up to 5 years. 

Terms of delivery:

To all regions of the country, international delivery. 

print

Accessories, inexpensive analogues and other devices in stock(7)

Technical characteristics

V8-7 voltmeter universal (b87, b-8-7, b 8 7, b-87, b 87)

V8-7 voltmeter designed to measure the universal relations voltage alternating current, consistently arriving at its input when working with measuring lines, polarization impedometer and work on the measurement of antenna patterns.

The device can also be used to enhance the low-voltage alternating current for linear synchronous phase-sensitive conversion of these voltages to the DC with the ability to display digital outputs in relative units.
The presence of the analog outputs for AC and DC power enables the device B8-7 in the automatic systems of control and regulation of the ability to record the measurement result by a recorder.
 
Technical characteristics of the devices voltmeters V8-7 Universal:
 
Ambient temperature - from 278K to 313K (5 º C to 10 ° C);
Relative humidity up to 95% at 303K (30 ° C);
The atmospheric pressure 100kPa ± 4kPa (750mm.rt.st.);
Power supply 220V ± 22V 50Hz ± 0,5 Hz.The intensity of external magnetic fields 0 Hz at a frequency of 5 external and internal synchronization
- A wide band mode and the voltage signals from 1mkV 100mkV to no more than 5 A / m;
- In a narrow band modes, and voltage signals from 0.2 mV to less than 20mkV 10A / m;
- For all other cases not more than 50 A / m;
B8-7 instrument provides a measurement of the ratio of AC voltage (measured relations), consistently arriving at its input;
The range of measured relations depending on the mode of the device, the frequency and the magnitude of the voltage input signal corresponds to the table. 1, measurement range 0,10-1 relations provided by four-digit -3.16 digital indicator.Further expansion of the range of measured values ​​to the relationships shown in Table. 1, provided ten-day divisor;
 
Table 1: Measuring range voltmeter B8-7 relations
The range of measured relations Operating input voltage range Frequency signals Operating mode
by the nature of the signal gain by the nature of the synchronization detector
1-31600 0.2 uV-10000mkV 1kHz, 10kHz narrow band side lock
1-10000 1mkV-10000mkV 0.13 kHz-20 kHz broad band
1-3160 2mkV-10000mkV 1kHz, 10kHz narrow band Internal synchronization
1-1000 10mkV-10000mkV 0.13 kHz-20 kHz broad band
 
The main error in measuring the relationship of the digital indicator with respect to not more than 1.000
 
± [0,3 +0,5 (N x -1)]%,
 
with a minimum voltage of one of the compared signals and at least 1mkV
 
± [0,3 +0,6 (N x -1)]%,
 
with a minimum voltage of one of the compared signals less 1mkV,
where N x - measured by the ratio, expressed as a number greater than one;
The basic error of decade divider does not exceed ± 1% in the frequency range 0.13 kHz-10 kHz ± 1,5% and in the frequency range above 10 kHz;
Change the readings B8-7 when the ambient temperature at every 10 ° C within the operating temperature range does not exceed
 
± [0,3 +0,3 (N x -1)]%,
 
to measure the digital indicator and ± 0,5% for the decadal divider;
Instrumental error B8-7 in high humidity does not exceed
 
± [0,3 +1 (N x -1)]%,
 
for measurements on the digital indicator and polutorakratnogo values ​​for the basic error of decade divider;
Uneven frequency response of the device in a mode not a broad band does not exceed ± 20% relative frequency of 1 kHz;
The bandwidth of the amplifier channel device in the mode of a narrow strip less than 500Hz and 5000Hz at the resonant frequencies of 1 kHz ± 10% and 10 kHz ± 10%, respectively;
Voltmeter B8-7 has a rough and fine adjustment of the gain.Coarse adjustment both spechivaet change gain of at least 10 times, and smooth control - not less than 5%;
The device has a display system overload the input. The threshold of activation of the display is in the range from 10.5 mV to 14mV;
B8-7 instrument measures the ratio of the voltage offset (fed), the constant tone of the source of positive polarity;
The maximum offset voltage is not less than 1V when the source impedance 100 ohms.Offset adjustment - smooth; error of offset voltage on the digital indicator, no more than ± 50 mV;
External synchronization unit B8-7 provides a sinusoidal voltage from 1V to 10V (rms) clock signal must have the same frequency as the input signal and be with him in phase or in antiphase;
The instrument has an amplifier output alternator. The voltage output of the amplifier with sinusoidal input signal, the indicator and a load resistance of 1.000 is not less than 10 ohms is not less than 100mV;
Voltmeter B8-7 has an output of the synchronous detector yannomu constant current.The voltage output of the detector with the indicator and a load resistance of 1.000 is not less than 10 ohms is 100 mV ± 2,5%;
The unit maintains its characteristics after one hundred times the overload on the input;
Input impedance B8-7 for the measured signal is 600 ohms ± 10%. Input impedance for the external synchronization signal is not less than 10 ohms;
The device provides its own specifications after samoprogreva time of 15 min.As the word excessive moisture while samoprogreva is 1 hour;
Nutrition B8-7 is AC 220V ± 22V 50Hz ± 0,5 Hz;
Rated power consumed by the device on the network does not exceed 40V ∙ A;
B8-7 provides its specifications within 8 hours of continuous operation;
MTBF of at least 1,500 hours;
Technical resource unit 10,000 hours, a period of 10 years, the shelf life 5 years;
Dimensions - 502h367h137mm;
Weight B8-7 - no more than 15kg.
Rate the product: В8-7
Number of views: 2482
Product rating: 4.4
Number of grades: 504
* rating and all product statistics are updated once a month; information is current as of 17 October 2024

Photos: В8-7

V8-7 voltmeter image.

V8-7 voltmeter image.

V8-7 front view.

V8-7 front view.

V8-7 side view.

V8-7 side view.

V8-7 rear view.

V8-7 rear view.

V8-7 overhead view.

V8-7 overhead view.

V8-7 bottom view.

V8-7 bottom view.

Poll

How did you find out about zapadpribor.com?

search engines

exhibition

online media

printed editions

colleagues advice

Vote

Leading online store Zapadpribor - a huge selection of measuring equipment for the best value and quality. So you can buy inexpensive devices, we monitor competitors' prices and are always ready to offer a lower price. We only sell quality products at the best prices. On our site you can buy cheaply as the latest innovations and proven equipment from the best manufacturers.

The site includes a special offer «buy at the best price» - if other Internet resources (bulletin board, forum or announcement of another online service) in products presented on our site, the lower price, we will sell it to you even cheaper! Buyers also additional discount for leaving a review or photo of use of our products.

In the price list contains not the whole range of products offered. Prices of goods, not included in the price list can learn to contact the manager. Also, our managers You can get detailed information about how cheap and profitable to buy instrumentation wholesale and retail. Telephone and e-mail for advice on the purchase , delivery or receipt are shown on the description of the goods. We have the most qualified staff, quality equipment and the best price.

 

Online store Zapadpribor - the official manufacturer's dealer test equipment. Our goal - selling high quality goods with best price offer and service to our customers. Our store can not only sell you the necessary instrument, but also offer additional services to its calibration, repair and installation. That you have a pleasant experience when shopping on our site, we have provided special gifts guaranteed to the most popular products.

 

We offer fast international shipping to almost every country in the world: Australia, Austria, Azerbaijan, Albania, Algeria, Anguilla, Angola, Antigua and Barbuda, Argentina, Aruba,  Bahamas, Bangladesh, Barbados, Bahrain, Belize, Belgium, Benin, Bermuda, Bulgaria, Bolivia, Bonaire, Sint-E. and Saba, Bosnia and Herzegovina, Botswana, Brazil, British Virgin Islands, Brunei Darussalam, Burkina Faso, Burundi, Bhutan, VietNam, Vanuatu, Vatican City, Venezuela, Armenia, Gabon, Guyana, Haiti, Gamia, Gambia, Ghana, Guatemala, Guinea, Gibraltar, Honduras, Hong Kong, Grenada, Greenland, Greece, Georgia, Denmark, Democratic Republic of the Congo, Jersey, Djibouti, Dominica, Dominican Republic, Ecuador, Eswatine, Estonia, Ethiopia, Egypt, Zambia, Zimbabwe, Jordan Indonesia, Ireland, Iceland, Spain, Italy, Cape Verde, Kazakhstan, Cayman Islands, Cambodia, Cameroon, Canada, Qatar, Kenya, Kyrgyzstan, China, Cyprus, Kiribati, Colombia, Comoros, Congo, Korea (Rep.), Costa Rica, Kot-d'Ivoire, Cuba, Kuwait, Curacao, Laos, Latvia, Lesotho, Lithuania, Liberia, Lebanon, Libya, Liechtenstein, Luxembourg, Myanmar, Mauritius, Mauritania, Madagascar, Macao, Malawi, Malaysia, Mali, Maldives, Malta, Morocco, Mexico, Mozambique, Moldova, Monaco, Monaco, Namibia, Nauru, Nepal, Niger, Nigeria, Netherlands, Germany, New Zealand, New Caledonia, Norway, UAE, Oman, Cook Islands, Pakistan, Palestine, Panama, Papua New Guinea, Paraguay, Peru, South Africa, Poland, Portugal, Republic of Chad, Rwanda, Romania, El Salvador, Samoa, San Marino, Saudi Arabia, Swaziland, Seychelles, Senegal, Saint Vincent and the Grenadines, Saint Kitts and Nevis, Saint Lucia, Serbia, Singapore, Sint Maarten, Slovakia, Slovenia, Solomon Islands, United Kingdom of Great Britain and Northern Ireland, Sudan, Suriname, East Timor (Timor-Leste), USA, Sierra Leone, Tajikistan, Taiwan, Thailand, Tanzania (United Republic of), Togo, Tonga, Trinidad and Tobago, Tuvalu, Tunisia, Turkey, Turkmenistan, Uganda, Hungary, Uzbekistan, Uruguay, Faroe Islands, Fiji, Philippines, Finland, France, French Polynesia, Croatia, Central African Republic, Czech Republic, Chile, Montenegro, Switzerland, Sweden, Sri Lanka, Jamaica, Japan.

We also provide such metrological procedure: calibration, tare, graduated, testing of measuring instruments.

The online store takes an active part in such procedures as electronic bidding, tender, auction.

If there is no site in the descriptive information you need on the device you can always turn to us for help. Our qualified managers will update for you on the technical characteristics of the device from its technical documentation: user manual, certificate, form, operating instructions, diagram. If necessary, we will take a photo of your device, or a device stand. You can leave feedback on the unit purchased from us, the meter, the device, indicator, or product. Your review for your approval will be published on the site without contact information.

 

Description of the instruments taken from the technical documentation or technical literature. Most pictures of products made directly by our experts prior to shipment of goods. In the description of the device provided the main technical characteristics of the instrument: nominal measuring range, accuracy class, scale, supply voltage, size (size), weight. If the site you see the discrepancy device name (model) specifications, photo or documents attached - let us know - you will get a useful gift with-selling device.

 

While the need to clarify the overall weight and size or the size of the individual meter you can in our service center. If you need our engineers will help you choose the most complete analog or a suitable replacement for the device you are interested. All counterparts and replacement will be tested in one of our laboratories with the full compliance to your requirements.

In the technical documentation for each device or product, information is provided on the list and amount of precious metals content. The documentation gives the exact weight in grams of precious metals: Au gold, palladium Pd, platinum Pt, silver Ag, tantalum Ta and other platinum group metals (PGM) per unit item. These precious metals are found in nature in very limited quantities and therefore have such a high price.

On our website you can familiarize yourself with the technical characteristics of devices and obtain information on the content of precious metals in devices and radio components manufactured in the USSR. We draw your attention to the fact that often the actual content of precious metals differs by 10-25% from the reference one in a smaller direction! The price of precious metals will depend on their value and mass in grams.

All text and graphic information on the site is informative. The color, shade, material, geometric dimensions, weight, content, delivery set and other parameters of the goods presented on the site may vary depending on the batch of production and year of manufacture. Check with the sales department for more information.

 

If you can make repairs to the device yourself, our engineers can provide you with a complete set of necessary technical documentation: circuit diagram TO, ER, FD, PS. We also have an extensive database of technical and metrological documents: technical specifications (TS), the terms of reference (TOR), GOST (DSTU), the industry standard (OST) test procedure, the method of certification, verification scheme for more than 3,500 types of measuring equipment from the manufacturer this equipment. From the site you can download all the necessary software (the software driver) is required for the product purchased.

We carries out repairs and maintenance of measuring equipment in more than 75 different factories of the former Soviet Union and CIS.

We also have a library of legal documents that are related to our field of activity: the law, code, ordinance, decree, temporary position.