摘要:
A process control system includes a process sensor, an inclination sensor and transmitter circuitry. The process sensor senses the process variable of a process fluid and the inclination sensor senses the orientation of the transmitter. The transmitter circuitry produces an output based on the sensed process variable and the sensed orientation.
摘要:
A process transmitter includes a hydraulic system with a fill fluid for transmitting pressure from a process fluid to a pressure sensor. The fill fluid contains hydraulic fluid and a self-activating stop-leak composition for preventing loss of fill fluid caused by leaks in the hydraulic system.
摘要:
A redundant pressure transmitter for redundantly measuring pressure of a process fluid comprises a transmitter housing, transmitter circuitry, a remote seal assembly including a first pressure sensor, and a second pressure sensor positioned in the transmitter housing. The remote seal assembly also comprises a remote seal flange, a communication system and a capillary tube. The remote seal flange communicates with the process fluid and the first pressure sensor senses the process fluid pressure at the remote seal flange. The communication system relays output of the first pressure sensor to the transmitter circuitry, and the capillary tube communicates the process fluid pressure to the transmitter housing via a fill fluid, where the second pressure sensor senses the pressure of the process fluid through the fill fluid.
摘要:
An instrument loop adapter includes an interface portion that is configured to couple to a header of a miniature process variable transmitter. In some embodiments, the interface portion includes a standardized cable output portion. In other embodiments, a cable portion is coupled to the interface portion. Additional functionality is provided in the interface portion, the cable portion or both portions. The additional functionality can include circuits that provide features not present in the process variable transmitter.
摘要:
A process device is configured to meet a desired Safety Integrity Level (SIL). A device interface is configured to couple to the process device and provide an output related to operation of a component of the process device. A component monitor monitors operation of the component and identifies a safety event of the component. A safety response module responds to a safety event of the component in accordance with a safety response.
摘要:
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.
摘要:
A process control system includes a transmitter having transmitter circuitry, a sensor, a remote sensing apparatus, a linkage and a slack take-up device. The sensor senses a process variable of a process fluid. The remote sensing apparatus communicating with the process fluid. The linkage communicates between the transmitter and the process fluid. The slack take-up device selectively adjusts a relative length of the linkage between the transmitter and the remote sensing apparatus.
摘要:
A process control system includes a process sensor, an inclination sensor and transmitter circuitry. The process sensor senses the process variable of a process fluid and the inclination sensor senses the orientation of the transmitter. The transmitter circuitry produces an output based on the sensed process variable and the sensed orientation.
摘要:
A process control system includes a transmitter having transmitter circuitry, a sensor, a remote sensing apparatus, a linkage and a slack take-up device. The sensor senses a process variable of a process fluid. The remote sensing apparatus communicating with the process fluid. The linkage communicates between the transmitter and the process fluid. The slack take-up device selectively adjusts a relative length of the linkage between the transmitter and the remote sensing apparatus.
摘要:
A pressure measurement system includes a pressure transmitter and a remote seal assembly, and a capillary tube that connects a housing of the remote seal with a housing of the pressure transmitter utilizing at least one negligible-leakage quick connect coupling.