CN2577271Y - Portable checking water for metering device - Google Patents
Portable checking water for metering device Download PDFInfo
- Publication number
- CN2577271Y CN2577271Y CN 02281057 CN02281057U CN2577271Y CN 2577271 Y CN2577271 Y CN 2577271Y CN 02281057 CN02281057 CN 02281057 CN 02281057 U CN02281057 U CN 02281057U CN 2577271 Y CN2577271 Y CN 2577271Y
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- CN
- China
- Prior art keywords
- air
- wireway
- measuring instrument
- pressure
- outlet
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The utility model relates to a portable check meter of a measuring instrument, which belongs to the device for checking a measuring instrument, particularly a device for checking a pressure gauge. The portable check meter of a measuring instrument comprises a pressure ammeter (1) which is provided with a high-precision pressure sensor, a control valve (2), a hand air pump (3) and an air tank (4), wherein, an air outlet of the hand air pump (3) is connected with an air inlet of the air tank (4) by an air duct (5). An air outlet of the air tank (4) is connected with the control valve (2) by an air duct (6). The control valve (2) is also provided with a turn knob (2-4) which is connected with an air outlet (2-1) of the pressure ammeter (1) by an air duct (7), and an air outlet (2-2) and an air exhaust vent (2-3) of a checked meter (9) by an air duct (8); the turn knob (2-4) can adjust the discharge quantity of the air exhaust vent (2-3). The outer end of the air duct (8) is connected with a quick joint (10). The portable check meter of a measuring instrument can work in the work place of without air source. The utility model has the advantages of small size, simple structure and complete function, and is suitable for checking meters for the industries, such as petroleum and chemical industry.
Description
Technical field: the utility model relates to a kind of device of verification measuring instrument, particularly relates to a kind of device of energy detected pressures table.
Background technology: there is following problem in traditional instrument chronographic recorder: the one, can not under the environment of no source of the gas, carry out calibration and test; The 2nd, when the instrument of verification low-pressure and low differential pressure, used air bag or with the force value that other pressurizer provides be difficult to be controlled at stable quilt cautious on, more be hard to keep and be controlled at the state that do not fluctuate down record by the test error of examining; The 3rd, the most volumes of existing various calibration instruments are big, and supporting calibration is disperseed with system unit, carries inconvenience, can not satisfy the requirement of the various model instrument of continuous development; The 4th, loaded down with trivial details in the interconnective gas circuit of calibration instrument, the circuit complexity of usefulness, and inefficiency.
The utility model content: the utility model does not need source of the gas for the problems referred to above that solve existing chronographic recorder and exist provide a kind of portable measuring instrument tester during this tester work, have simple in structure, the stable and reliable operation characteristics.Portable measuring instrument tester of the present utility model comprises the pressure to current table 1 that has high-precision pressure sensor, operation valve 2, hand air pump 3, gas tank 4, the gas outlet of hand air pump 3 connects the air intake opening of gas tank 4 through wireway 5, the gas outlet of gas tank 4 connects operation valve 2 through wireway 6, on operation valve 2, also be provided with the gas outlet 2-1 that connects pressure to current table 1 by wireway 7, the gas outlet 2-2 that connects calibrated meter 9 by wireway 8, relief port 2-3 and regulate the knob 2-4 of relief port 2-3 discharge quantity also is connected with a rapid-acting coupling 10 in the outer end of wireway 8.The utility model can be worked in the workplace of no source of the gas, and can stably given output signal value be stabilized in by on cautious, and the malobservation of avoiding signal fluctuation to cause can be utilized the hand air pump inflation during as interior air storage source insufficient pressure.This tester also has the advantage that volume is small and exquisite, simple in structure, function is complete, and it is suitable for the usefulness of oil, chemical industry check meter.
Description of drawings: Fig. 1 is an external structure synoptic diagram of the present utility model, and Fig. 2 is an inner structure synoptic diagram of the present utility model.
Embodiment: the portable measuring instrument tester of present embodiment is made up of pressure to current table 1, operation valve 2, hand air pump 3, gas tank 4, wireway, rapid-acting coupling 10, casing 11, the multimeter 12, the valve that have a direct supply.The gas outlet of hand air pump 3 connects the air intake opening of gas tank 4 through wireway 5, the gas outlet of gas tank 4 connects operation valve 2 through wireway 6, on operation valve 2, also be provided with by wireway 7 connect pressure to current tables 1 gas outlet 2-1, connect gas outlet 2-2, a relief port 2-3 of calibrated meters 9 and regulate the knob 2-4 of relief port 2-3 discharge quantity by wireway 8, also be connected with a rapid-acting coupling 10 in the outer end of wireway 8.On wireway 5, also be connected with outlet branch 13 and inflation arm 14, air release 15 is installed on outlet branch 13, on inflation arm 14, gas filling valve 16 is installed.Also be connected with outlet branch 17 on wireway 7, outlet branch 17 is provided with micrometering valve 18, given output signal value can be stabilized in by on cautious the malobservation of avoiding signal fluctuation to cause by micrometering valve 18.Pressure to current table 1, operation valve 2, hand air pump 3, gas tank 4, wireway, multimeter 12 all are installed in the casing 11, and the dial plate of pressure to current table 1 and multimeter 12 is arranged on the loam cake 11-1 of casing 11.On the loam cake 11-1 of casing 11, also be provided with binding post 19 and adjusting knob 20, can be connected between multimeter 12 and the binding post 19 with lead as required during use, and tested table linked to each other with binding post with lead, by adjusting knob 20, promptly exportable different simulating signal.
Claims (5)
1, portable measuring instrument tester, it is characterized in that it comprises the pressure to current table (1) that has high-precision pressure sensor, operation valve (2), hand air pump (3), gas tank (4), the gas outlet of hand air pump (3) connects the air intake opening of gas tank (4) through wireway (5), the gas outlet of gas tank (4) connects operation valve (2) through wireway (6), on operation valve (2), also be provided with the gas outlet (2-1) that connects pressure to current table (1) by wireway (7), the gas outlet (2-2) that connects calibrated meter (9) by wireway (8), the knob (24) of a relief port (2-3) and adjusting relief port (2-3) discharge quantity also is connected with a rapid-acting coupling (10) in the outer end of wireway (8).
2, portable measuring instrument tester according to claim 1, it is characterized in that on wireway (5), also being connected with outlet branch (13) and inflation arm (14), air release (15) is installed on outlet branch (13), on inflation arm (14), gas filling valve (16) is installed.
3, portable measuring instrument tester according to claim 1 is characterized in that also being connected with outlet branch (17) on wireway (7), and outlet branch (17) is provided with micrometering valve (18).
4, portable measuring instrument tester according to claim 1, it is characterized in that pressure to current table (1), operation valve (2), hand air pump (3), gas tank (4), wireway, multimeter (12) all are installed in the casing (11), the dial plate of pressure to current table (1) and multimeter (12) is arranged on the loam cake (11-1) of casing (11).
5, portable measuring instrument tester according to claim 4 is characterized in that also being provided with binding post (19) and adjusting knob (20) on the loam cake (11-1) of casing (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02281057 CN2577271Y (en) | 2002-11-08 | 2002-11-08 | Portable checking water for metering device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02281057 CN2577271Y (en) | 2002-11-08 | 2002-11-08 | Portable checking water for metering device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2577271Y true CN2577271Y (en) | 2003-10-01 |
Family
ID=33743572
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02281057 Expired - Fee Related CN2577271Y (en) | 2002-11-08 | 2002-11-08 | Portable checking water for metering device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2577271Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101424577A (en) * | 2008-12-09 | 2009-05-06 | 沈阳仪表科学研究院 | Test fixture for preparing silicon capacitor differential pressure transducer |
| CN102323006A (en) * | 2011-08-29 | 2012-01-18 | 际华三五零二职业装有限公司 | Portable pressure calibrator |
| CN102829847A (en) * | 2012-09-06 | 2012-12-19 | 上海华强浮罗仪表有限公司 | Online detection device of thermal gas mass flowmeter |
-
2002
- 2002-11-08 CN CN 02281057 patent/CN2577271Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101424577A (en) * | 2008-12-09 | 2009-05-06 | 沈阳仪表科学研究院 | Test fixture for preparing silicon capacitor differential pressure transducer |
| CN102323006A (en) * | 2011-08-29 | 2012-01-18 | 际华三五零二职业装有限公司 | Portable pressure calibrator |
| CN102829847A (en) * | 2012-09-06 | 2012-12-19 | 上海华强浮罗仪表有限公司 | Online detection device of thermal gas mass flowmeter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20031001 Termination date: 20091208 |