JPH0125761Y2 - - Google Patents
Info
- Publication number
- JPH0125761Y2 JPH0125761Y2 JP1987077221U JP7722187U JPH0125761Y2 JP H0125761 Y2 JPH0125761 Y2 JP H0125761Y2 JP 1987077221 U JP1987077221 U JP 1987077221U JP 7722187 U JP7722187 U JP 7722187U JP H0125761 Y2 JPH0125761 Y2 JP H0125761Y2
- Authority
- JP
- Japan
- Prior art keywords
- bellows
- preloaded
- prevention device
- pressure
- out pressure
- Prior art date
- 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
Links
- 230000002265 prevention Effects 0.000 claims description 47
- 238000002955 isolation Methods 0.000 claims description 40
- 239000012530 fluid Substances 0.000 claims description 20
- 230000036316 preload Effects 0.000 claims description 13
- 239000007788 liquid Substances 0.000 description 11
- 238000000034 method Methods 0.000 description 10
- 230000006835 compression Effects 0.000 description 9
- 238000007906 compression Methods 0.000 description 9
- 230000036961 partial effect Effects 0.000 description 8
- 238000007667 floating Methods 0.000 description 7
- 230000008569 process Effects 0.000 description 6
- 230000002829 reductive effect Effects 0.000 description 4
- 238000004891 communication Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000000670 limiting effect Effects 0.000 description 3
- 230000003068 static effect Effects 0.000 description 3
- 230000002457 bidirectional effect Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 238000012369 In process control Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000001627 detrimental effect Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000010965 in-process control Methods 0.000 description 1
- 230000001012 protector Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 229920002545 silicone oil Polymers 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L19/00—Details of, or accessories for, apparatus for measuring steady or quasi-steady pressure of a fluent medium insofar as such details or accessories are not special to particular types of pressure gauges
- G01L19/06—Means for preventing overload or deleterious influence of the measured medium on the measuring device or vice versa
- G01L19/0618—Overload protection
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L13/00—Devices or apparatus for measuring differences of two or more fluid pressure values
- G01L13/02—Devices or apparatus for measuring differences of two or more fluid pressure values using elastically-deformable members or pistons as sensing elements
- G01L13/025—Devices or apparatus for measuring differences of two or more fluid pressure values using elastically-deformable members or pistons as sensing elements using diaphragms
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Fluid Pressure (AREA)
- Supply Devices, Intensifiers, Converters, And Telemotors (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US05/892,811 US4135407A (en) | 1978-04-03 | 1978-04-03 | Method and apparatus for overrange protection of the transducer in a differential pressure transmitter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0158804U JPH0158804U (en]) | 1989-04-13 |
| JPH0125761Y2 true JPH0125761Y2 (en]) | 1989-08-02 |
Family
ID=25400535
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4024879A Pending JPS54138965A (en) | 1978-04-03 | 1979-04-03 | Method of and apparatus for maintaining over range pressure of converter for differential transmission |
| JP1987077221U Expired JPH0125761Y2 (en]) | 1978-04-03 | 1987-05-22 |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4024879A Pending JPS54138965A (en) | 1978-04-03 | 1979-04-03 | Method of and apparatus for maintaining over range pressure of converter for differential transmission |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US4135407A (en]) |
| JP (2) | JPS54138965A (en]) |
| CA (1) | CA1103478A (en]) |
| DE (1) | DE2911349C2 (en]) |
| FR (1) | FR2422153A1 (en]) |
| GB (1) | GB2017919B (en]) |
| IT (1) | IT1115094B (en]) |
| NL (1) | NL181954C (en]) |
Families Citing this family (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4218925A (en) * | 1979-06-27 | 1980-08-26 | Honeywell Inc. | Differential pressure transmitter with pressure sensor protection |
| US4434203A (en) | 1980-10-27 | 1984-02-28 | Setra Systems, Inc. | Diaphragm |
| FR2498755A1 (fr) * | 1981-01-27 | 1982-07-30 | Ams Sa | Appareil de protection pour capteurs de pressions differentielles contre le depassement d'une pression differentielle maximale donnee |
| DE8407659U1 (de) * | 1984-03-09 | 1985-03-14 | Siemens AG, 1000 Berlin und 8000 München | Druck- oder druckdifferenzmessgeraet |
| GB2166243A (en) * | 1984-07-07 | 1986-04-30 | Rolf Ruesse | An overpressure protector for pressure gauges |
| DE3443419A1 (de) * | 1984-11-26 | 1986-05-28 | Siemens AG, 1000 Berlin und 8000 München | Druckdifferenz-messgeraet mit einem halbleiter-drucksensor |
| USD297315S (en) | 1985-12-16 | 1988-08-23 | Rosemount Inc. | Compact differential pressure transmitter |
| USD317266S (en) | 1988-04-22 | 1991-06-04 | Rosemount Inc. | Pressure transmitter housing |
| US5621175A (en) * | 1992-10-22 | 1997-04-15 | Hitachi, Ltd. | Differential pressure transmitter having symmetrical construction |
| USD439178S1 (en) | 2000-03-21 | 2001-03-20 | Rosemount Inc. | Pressure transmitter with dual inlet base and single compartment housing |
| WO2002008712A1 (de) | 2000-07-26 | 2002-01-31 | Endress + Hauser Gmbh + Co. Kg | Kapazitiver drucksensor |
| DE20019067U1 (de) * | 2000-11-09 | 2001-01-18 | Abb Patent Gmbh, 68309 Mannheim | Druckmesseinrichtung |
| DE10105230A1 (de) * | 2001-02-02 | 2002-08-29 | Endress & Hauser Gmbh & Co Kg | Differenzdrucksensor mit Überlastsicherung |
| JP3800623B2 (ja) | 2002-08-30 | 2006-07-26 | 横河電機株式会社 | 差圧／圧力伝送器 |
| US7520919B2 (en) * | 2004-06-22 | 2009-04-21 | Gambro Lundia Ab | Transducer-protector device for medical apparatus |
| DE102004051219B4 (de) * | 2004-10-20 | 2013-03-14 | Endress + Hauser Gmbh + Co. Kg | Druckmessaufnehmer |
| CN103512703A (zh) * | 2013-09-18 | 2014-01-15 | 西安思坦仪器股份有限公司 | 压差密度计压力保护装置 |
| CN106872097A (zh) * | 2017-04-28 | 2017-06-20 | 广东省中山市质量计量监督检测所 | 一种带保护装置的微差压变送器 |
| CN113155353A (zh) * | 2021-04-02 | 2021-07-23 | 普力斯特测控技术(天长)有限公司 | 一种便携型直装式法兰压力传感器的过度保护连接装置 |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3058350A (en) * | 1959-10-06 | 1962-10-16 | Statham Instrument Inc | Differential pressure transducer |
| US3290945A (en) * | 1961-08-21 | 1966-12-13 | Li Yao Tzu | Differential pressure responsive device |
| US3313158A (en) * | 1965-07-23 | 1967-04-11 | Statham Instrument Inc | High overload pressure transducer |
| DE1498205B2 (de) * | 1965-09-16 | 1970-06-11 | Siemens AG, 1000 Berlin u. 8000 München | Mit einer Schutz- oder Dämpfungsflüs-' sigkeit gefüllter überlastsicherer Differenzdruck-Meßumformer |
| DE1773425A1 (de) * | 1968-05-14 | 1971-11-25 | Teltov Geraete Regler | Kraftkompensierender Differenzdruckmessumformer |
| US3756085A (en) * | 1972-01-03 | 1973-09-04 | Bailey Meter Co | Differential pressure transmitter overrange protection |
| US3841158A (en) * | 1972-01-03 | 1974-10-15 | Bailey Meter Co | Differential pressure transmitter overrange protection |
| IT1025881B (it) * | 1974-11-21 | 1978-08-30 | Nuovo Pignone Spa | Sistema di protezione alle sovra pressioni di un sensore a wafer di siligio di un trasmettitore di pressione differenziale |
-
1978
- 1978-04-03 US US05/892,811 patent/US4135407A/en not_active Expired - Lifetime
-
1979
- 1979-03-14 CA CA323,418A patent/CA1103478A/en not_active Expired
- 1979-03-22 DE DE2911349A patent/DE2911349C2/de not_active Expired
- 1979-03-30 IT IT48554/79A patent/IT1115094B/it active
- 1979-03-30 GB GB7911185A patent/GB2017919B/en not_active Expired
- 1979-03-30 NL NLAANVRAGE7902486,A patent/NL181954C/xx not_active IP Right Cessation
- 1979-04-03 JP JP4024879A patent/JPS54138965A/ja active Pending
- 1979-04-03 FR FR7908295A patent/FR2422153A1/fr active Granted
-
1987
- 1987-05-22 JP JP1987077221U patent/JPH0125761Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| IT1115094B (it) | 1986-02-03 |
| JPH0158804U (en]) | 1989-04-13 |
| IT7948554A0 (it) | 1979-03-30 |
| DE2911349C2 (de) | 1986-01-30 |
| FR2422153A1 (fr) | 1979-11-02 |
| GB2017919B (en) | 1983-01-19 |
| US4135407A (en) | 1979-01-23 |
| FR2422153B1 (en]) | 1983-12-16 |
| NL181954C (nl) | 1987-12-01 |
| JPS54138965A (en) | 1979-10-27 |
| NL7902486A (nl) | 1979-10-05 |
| GB2017919A (en) | 1979-10-10 |
| DE2911349A1 (de) | 1979-10-11 |
| NL181954B (nl) | 1987-07-01 |
| CA1103478A (en) | 1981-06-23 |
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