Preinstallation of a pressure sensor module

Abstract

A pressure sensor module (50) preassembled without a transducer and an assembly method thereof. Without the transducer module, the pressure sensor module (50) is sealed and protected from damage in the installation environment. The transducer module can be installed later on the pressure sensor module (50). The pressure sensor module (50) includes an isolator (54), a pressure sensor (58), and circuitry (60) that provides power, control, and pressure digital output buses. An integrally sealed external support structure encloses and protects the pressure sensor (58) and electrical circuit (60). The sealed outer support structure has a threaded process fluid inlet (74) facing the isolator (54) and a threaded support bushing (76) for supporting the wiring structure.

Description

technical field [0001] The present invention relates to industrial process systems; more particularly, to pressure transmitters used in industrial process systems. Background technique [0002] Pressure transmitters are typically installed in a clean and controlled factory or workshop environment by assembling a pressure sensor module with a transducer module. The shells of the above two modules all have a connection structure with threads, through which the electronic circuit can protrude and be connected with other modules. The above two threaded connection structures are connected together by threads, and each module is sealed by its connection structure with other modules, thereby forming a complete pressure transmitter and providing protection for its internal electronic circuit. [0003] But before the modules are assembled together, the exposed electronic components in the sensor module may be contaminated and damaged by human contact, spilled or corrosive chemicals ...

AI Technical Summary

Problems solved by technology

[0003] However, before the modules are assembled together, the exposed electronic components in the sensor module may be contaminated and damaged by human contact, leaked or corrosive chemicals in the environment, or other environmental conditions

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