Honeywell International Inc.

George Hershey

Mark Striano

Larry A Hain

Roger Hoover

Richard D Daugert

Ronald E Beselt

Rajender Singh

Bin Sai

Bas Kastelein

An apparatus includes a sensor body, a sensor configured to measure differential pressure, and first and second pressure inputs in or on the sensor body. The pressure inputs are configured to provide multiple input pressures to the sensor. Each pressure input includes a barrier diaphragm configured to move in response to pressure and an overload diaphragm configured to limit movement of the barrier diaphragm. The overload diaphragm is also configured to exert a preload force against the sensor body. The overload diaphragm of each pressure input may include multiple convolutions. Bases of the convolutions may be configured to provide the preload force, and tops of the convolutions may be separated from the sensor body by gaps. Tops of the convolutions that are non-adjacent may be configured to provide the preload force, and tops of the convolutions between the non-adjacent convolutions may be separated from the sensor body by gaps.

Pressure sensor having overpressure protection with reduced output error

An apparatus includes a sensor body and a sensor configured to measure pressure. The apparatus also includes at least one pressure input in or on the sensor body, where the at least one pressure input is configured to provide at least one input pressure to the sensor. The apparatus further includes multiple fluid passages configured to convey the at least one input pressure from the at least one pressure input to the sensor using a fill fluid. The multiple fluid passages are configured to both (i) transport the fill fluid and (ii) absorb thermal energy in a flame created by the sensor before the flame exits the sensor body. The fluid passages can include long and narrow straight passages, long and narrow curved or helical passages, and turns or bends. The fluid passages can have small cross-sections relative to their lengths.

Pressure sensor with flow porting having integral flame-proof safety mechanism

An apparatus includes a header containing a sensor configured to measure pressure and a sensor body connected to the header, where the sensor body and the header form a pressure vessel configured to receive an input pressure. The header is connected to the sensor body such that the input pressure received on an inner surface of the header is substantially equal to the input pressure received on an outer surface of the header. A lowest connection point of the header to the sensor body may be located at or above a highest point at which the input pressure extends into the header. A lower portion of the header may be unconnected to the sensor body and extend into an interior volume of the sensor body. The header may include a vent configured to expose the sensor to atmospheric pressure or a lower-pressure input pressure.

Pressure sensor header with improved input pressure withstand capability

A tank overflow protection system and method for measuring process temperature and pressure utilizing one or more piezoresistive pressure transmitters. The piezoresistive pressure transmitter includes a differential pressure sensor and a temperature sensor. Data from the piezoresistive pressure transmitters can be digitally communicated via a cable. The pressure transmitters convert signals indicative of temperature and pressure to a digital value and transmit the signals to a main processor printed wire assembly for final compensation, diagnostics, and transmission to a distributed control system. A differential pressure can be calculated by subtracting two digital pressure measurement values. The temperature measurement can be employed to calculate any changes in density for a user-defined reference value.

Tank overflow protection system and method

A pressure transmitter includes at least one impulse line for coupling a fluid pipe or tank to a pressure sensor that measures a process pressure of a process fluid, a temperature sensor measuring an ambient temperature, and a processor accessing baseline data for the process pressure and ambient temperature. The processor implements an automatic impulse line plugging diagnostic (ILPD) algorithm stored in memory. The processor runs the ILPD algorithm implementing utilizing process measurements including a process pressure from the pressure sensor and an ambient temperature from the temperature sensor, comparing a magnitude of the process pressure to a baseline pressure predicted from the baseline data corresponding to the ambient temperature, and uses results of the comparing to determine whether the impulse line is plugged. The comparing can involve comparing a process pressure change to a baseline pressure change predicted corresponding to an ambient temperature change.

Pressure transmitter with impulse line plugging diagnostic

A quick disconnect field instrument display assembly for assembling a display meter with a communication module. A snap-fit locking feature and a tab each mounted on both sides of a display meter housing locks with a receptacle tab located on a communication module housing in order to rotate the display with 90&#xb0; indexing (360&#xb0; display rotation). A printed circuit board can be firmly snapped into the display meter housing with the snap-fit locking feature on both sides and a display unit can be mounted in parallel to the display meter housing in order to restrict movement of the printed circuit board. A snap feature located on the inner side of the communication module housing secures a communication board and a number of tabs on the communication module housing facilitate 360&#xb0; rotation with respect to the display meter housing.

Quick disconnect field instrument display meter assembly

A wireless device () and related method of monitoring or controlling a process includes a housing () having a mounting structure () for rigidly connecting the wireless device with respect to a solid surface, such as within a processing facility (). An antenna assembly () has a movable connection (e.g., using set screwand channel) with the housing (), wherein the antenna assembly can be moved with respect to the housing (), and wherein the movable connection maintains a hermetic seal and an explosion-proof flame path of the housing and the antenna assembly. The wireless device () can include a transmitter, receiver or a transceiver coupled to the antenna assembly (), wherein the wireless device () is operable to wirelessly transmit using the antenna assembly to a remote receiver or receive information from a remotely located transmitter.

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Blue Bell, PA, United States of America

George Hershey