JPS5517412A - Pressure transmitter with replacement unit - Google Patents
Pressure transmitter with replacement unitInfo
- Publication number
- JPS5517412A JPS5517412A JP8990978A JP8990978A JPS5517412A JP S5517412 A JPS5517412 A JP S5517412A JP 8990978 A JP8990978 A JP 8990978A JP 8990978 A JP8990978 A JP 8990978A JP S5517412 A JPS5517412 A JP S5517412A
- Authority
- JP
- Japan
- Prior art keywords
- pressure
- valve
- calibration
- zero point
- plant
- 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.)
- Granted
Links
Landscapes
- Measuring Fluid Pressure (AREA)
Abstract
PURPOSE: To easily perform the calibration of zero point and measured pressure an to check the diaphragm,, by providing the calibration means on the way of the second pressure transmission medium pipe way.
CONSTITUTION: The calibration means 27 is constituted by providing the first valve 17 on the way of capillary tube 15, pressure guide tube 18 between the first valve 17 and the pressure transmitter 14, diaphragm, and the calibration pressure guide section 20 sealing the secondary pressure transmission medium 16 such as silicone oil. After the pressure Pb almost equal to the plant pressure Pa from the pressure reception inlet 22 of the calibration pressure guide section 20, and when the second valve 19 is opened and the first valve 17 is closed, the plant pressure Pa is interrupted. When the pressure Pb is zeroed, no pressure is exerted to the pressure transmitters 14 to enable zero point calibration. A pressure higher than the plant pressure Pa is fed from the pressure reception inlet 22 and after leaving for several minutes with the first valve 17 opened, the first valve 17 is closed to zero the pressure and the zero point is measured. The pressure reception diaphgram 3 and the replacement 9 can be changed with the comparison between the both zero point measurements.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8990978A JPS5517412A (en) | 1978-07-25 | 1978-07-25 | Pressure transmitter with replacement unit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8990978A JPS5517412A (en) | 1978-07-25 | 1978-07-25 | Pressure transmitter with replacement unit |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5517412A true JPS5517412A (en) | 1980-02-06 |
JPS6213613B2 JPS6213613B2 (en) | 1987-03-27 |
Family
ID=13983837
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8990978A Granted JPS5517412A (en) | 1978-07-25 | 1978-07-25 | Pressure transmitter with replacement unit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5517412A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS56114518A (en) * | 1980-02-16 | 1981-09-09 | Nippon Steel Corp | Automatic thickness controller for continuous rolling mill |
JPS57166197U (en) * | 1981-04-14 | 1982-10-20 |
-
1978
- 1978-07-25 JP JP8990978A patent/JPS5517412A/en active Granted
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS56114518A (en) * | 1980-02-16 | 1981-09-09 | Nippon Steel Corp | Automatic thickness controller for continuous rolling mill |
JPS57166197U (en) * | 1981-04-14 | 1982-10-20 |
Also Published As
Publication number | Publication date |
---|---|
JPS6213613B2 (en) | 1987-03-27 |
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