Solid-state simplifies multiple pressure point measuring, control

Measurement and control of multiple pressure points is a common application. Typically, four pressure points require as many as 12 different pieces of hardware. This same goal can be accomplished with one solid-state pressure switch, which can save both time and money. A duplex pump control system, for example, requires control logic based on four pressure settings with low- and high-pre...

02/01/2002


Measurement and control of multiple pressure points is a common application. Typically, four pressure points require as many as 12 different pieces of hardware. This same goal can be accomplished with one solid-state pressure switch, which can save both time and money.

A duplex pump control system, for example, requires control logic based on four pressure settings with low- and high-pressure alarms and activation of either the leading or lagging pump.

Traditional systems use either four individual or two duplex electromechanical pressure switches. Visual display is supplied by a pressure gauge, while a transmitter is added to provide a remote 4-20 mA signal. Each device requires an instrument valve, piping and wiring.

Presently available solid-state technology can be used to replace this complexity with a single device that improves accuracy, extends life, and reduces installed costs. In addition, many applications require high/low alarms or start/stop values for their process variables.

Electronic capabilities on the latest generation of solid-state pressure switches can be adapted to handle not only pressure, but also level, temperature and flow.


For more information, visit www.barksdale.com or www.contorleng.com/freeinfo .


Author Information

Terry Merlihan is product manager, transducers & solid-state switches, Barksdale, Inc., a subsidiary of Crane Co. (Los Angeles,Calif.)




No comments
The Engineers' Choice Awards highlight some of the best new control, instrumentation and automation products as chosen by...
The System Integrator Giants program lists the top 100 system integrators among companies listed in CFE Media's Global System Integrator Database.
The Engineering Leaders Under 40 program identifies and gives recognition to young engineers who...
This eGuide illustrates solutions, applications and benefits of machine vision systems.
Learn how to increase device reliability in harsh environments and decrease unplanned system downtime.
This eGuide contains a series of articles and videos that considers theoretical and practical; immediate needs and a look into the future.
Robotic safety, collaboration, standards; DCS migration tips; IT/OT convergence; 2017 Control Engineering Salary and Career Survey
Integrated mobility; Artificial intelligence; Predictive motion control; Sensors and control system inputs; Asset Management; Cybersecurity
Big Data and IIoT value; Monitoring Big Data; Robotics safety standards and programming; Learning about PID
Featured articles highlight technologies that enable the Industrial Internet of Things, IIoT-related products and strategies to get data more easily to the user.
This article collection contains several articles on how automation and controls are helping human-machine interface (HMI) hardware and software advance.
This digital report will explore several aspects of how IIoT will transform manufacturing in the coming years.

Find and connect with the most suitable service provider for your unique application. Start searching the Global System Integrator Database Now!

Mobility as the means to offshore innovation; Preventing another Deepwater Horizon; ROVs as subsea robots; SCADA and the radio spectrum
Future of oil and gas projects; Reservoir models; The importance of SCADA to oil and gas
Big Data and bigger solutions; Tablet technologies; SCADA developments
Automation Engineer; Wood Group
System Integrator; Cross Integrated Systems Group
Jose S. Vasquez, Jr.
Fire & Life Safety Engineer; Technip USA Inc.
This course focuses on climate analysis, appropriateness of cooling system selection, and combining cooling systems.
This course will help identify and reveal electrical hazards and identify the solutions to implementing and maintaining a safe work environment.
This course explains how maintaining power and communication systems through emergency power-generation systems is critical.
click me