Emerson Integrates Valve Position Transmitter and HART 7 Communications Within its Digital Valve Controller

The discrete switch is a solid state circuit (1-amp maximum) that opens and closes based on a user configurable trip point. The trip point can be based on valve travel anywhere within the calibrated travel range or on a device alert.

The position transmitter is independent from the digital valve controller with the power coming from the control system analog input channel in the same manner as a standard 2-wire transmitter.

For more information, visit www.emersonprocess.com

RELATED CONTENT

Regulators versus Control Valves: What’s the Best Fit?

The combination of North American shale fields that continue to fuel high levels of new domestic oil and gas projects and ongoing global efforts means the need for efficiency in instrumentation selection has never been higher.
Solenoid Valves: Direct Acting vs. Pilot-Operated

While presenting in a recent VMA Valve Basics 101 Course in Houston, I found myself in a familiar role: explaining solenoid valves (SOVs) to attendees. (I work with solenoids so much that one VMA member at that conference joked that I needed to be wearing an I Heart Solenoids t-shirt). During the hands-on “petting zoo” portion of the program, which involves smaller groups of attendees, one of the most frequently asked questions I get from people came up: What’s the difference between direct-acting and pilot-operated SOVs, and how do we make a choice?
The Diverse Role Valves Play in the Chemical Industry

The chemical industry is extremely diverse with more than 60,000 known products. Like all process industries, the chemical industry needs valves designed for safe, efficient and reliable process operation.