Preinstallation of a pressure sensor module
First Claim
1. A pressure sensor module, comprising:
- a transducer having an isolator within a threaded process fluid inlet, and having a pressure sensor coupled to the isolator;
the isolator including an isolator diaphragm having a peripheral edge;
a circuit coupled to the pressure sensor and providing a bus for energization, control, and a digital representation of pressure;
a feedthrough comprising a module connector having contacts coupled to the bus, the contacts including contact portions exposed for electrical connection in the process environment and having an insulator surrounding the contacts; and
a housing that is welded to the peripheral edge of the isolator diaphragm, sealed to the feedthrough, and that is integrally formed and surrounds the pressure sensor and the circuit, the housing protecting the transducer, and the circuit from inadvertent opening in the process environment, the housing including the threaded process fluid inlet, and a threaded sleeve supporting the feedthrough, the sleeve forming a module support.
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Accused Products
Abstract
A pressure sensor module and method for pre-installation without a converter module. The pressure sensor module is hermetically sealed and can remain undamaged in an installation environment without a converter module. The pressure sensor module can be assembled later with a converter module in the installation environment. The pressure sensor module includes an isolator, a pressure sensor and a circuit that provides a bus for energization, control and a digital pressure output. The bus is connected to contacts in an insulating feedthrough. An integrally formed hermetic external support structure surrounds the pressure sensor and circuit. The hermetic external support structure has a threaded process fluid inlet around the isolator, and a threaded support sleeve supporting the feedthrough.
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Citations
20 Claims
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1. A pressure sensor module, comprising:
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a transducer having an isolator within a threaded process fluid inlet, and having a pressure sensor coupled to the isolator;
the isolator including an isolator diaphragm having a peripheral edge;
a circuit coupled to the pressure sensor and providing a bus for energization, control, and a digital representation of pressure;
a feedthrough comprising a module connector having contacts coupled to the bus, the contacts including contact portions exposed for electrical connection in the process environment and having an insulator surrounding the contacts; and
a housing that is welded to the peripheral edge of the isolator diaphragm, sealed to the feedthrough, and that is integrally formed and surrounds the pressure sensor and the circuit, the housing protecting the transducer, and the circuit from inadvertent opening in the process environment, the housing including the threaded process fluid inlet, and a threaded sleeve supporting the feedthrough, the sleeve forming a module support. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 19)
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18. A pressure sensor module, comprising:
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a transducer having an isolator within a threaded process fluid inlet, and having a pressure sensor coupled to the isolator;
the isolator including an isolator diaphragm having a peripheral edge;
a circuit coupled to the pressure sensor and providing a bus for energization, control, and a digital representation of pressure;
a feedthrough comprising a modular connector having contacts coupled to the bus, the contacts including contact portions exposed for electrical connection in the process environment; and
having an insulator surrounding the contacts; and
structure means joined to the feedthrough and the isolator for protecting the transducer and the circuit from inadvertent opening in the process environment. - View Dependent Claims (20)
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Specification