Honeywell International Inc.

Jeff Becker

Ramakrishna S Budampati

Raymond A Rogowski, Ii

The present disclosure provides methods and systems for initiating sealed sensor units in the field. A packaged sensor unit may include a sensor module, an activation mechanism and an internal battery, all situated in a sealed enclosure. In some cases, the sealed enclosure may be devoid of any externally accessible switches. A pre-defined triggering stimulus may be applied to the packaged sensor unit, and the pre-defined triggering stimulus may be detected via the activation mechanism. In response to the activation mechanism detecting the pre-defined triggering stimulus, the internal battery may be connected to the sensor module. Prior to detecting the pre-defined triggering stimulus, both the sensor module and the activation mechanism may draw no power from the internal battery of the packaged sensor unit. In some cases, the activation mechanism, once activated, irreversibly couples the power supply to the sensor module.

Methods and systems for activating sealed sensors in the field

A system and method are disclosed for adapting a loop powered wired field instrument for use in a wireless network of wireless field instruments without changing internal wiring of the loop powered wired field instrument. The invention comprises a wired to wireless adapter apparatus that connects to a wired field instrument. The apparatus comprises power conversion circuitry that receives either external power or battery power and converts the received power to loop power for the wired field instrument. The apparatus also receives and decodes a wired signal from the wired field instrument and converts the decoded signal for subsequent wireless transmission to a wireless network. It appears to the wireless network that receives the transmitted wireless signal that the wired field instrument is a wireless field instrument.

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Scottsdale, AZ, United States of America

Jeff Becker