发明名称 |
REMOVABLE MAGNETIC ZERO/SPAN ACTUATOR FOR A TRANSMITTER |
摘要 |
A magnetic actuator for adjusting the zero and span settings of a transmitter used in industrial process control systems. The actuator has a single magnet in a housing. The actuator is removable from the transmitter. When the actuator is unactuated the magnet is in a null position wherein it does not actuate either the zero or span setting reed switches. The magnet can be moved to either a first position wherein it actuates the zero setting reed switch or a second position wherein it actuates the span setting reed switch. The actuator applies a torque in the proper direction to return the magnet to the null position when the torque applied to move the magnet to either the first or second position is removed.
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申请公布号 |
CA2100525(C) |
申请公布日期 |
1997.01.14 |
申请号 |
CA19932100525 |
申请日期 |
1993.07.14 |
申请人 |
ELSAG INTERNATIONAL B.V. |
发明人 |
ALDEN, JEROME S.;BUDAN, VICTOR J.;THOMPSON, HAROLD W. |
分类号 |
G08C19/00;H01H9/04;H01H36/00;(IPC1-7):H01H3/00 |
主分类号 |
G08C19/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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