Application advice: Pressure sensors for water treatment

Life in water treatment applications is tough on sensors. Baumer offers pressure and level sensor designs that can take it.

03/16/2010


Baumer sensors

Baumer offers sensors designed for water treatment

 

While working with water may sound easy, water treatment applications can place high demands on pressure and level measuring instruments. Wastewater is difficult with aggressive elements and suspended solids. Desalination of seawater is highly corrosive. For these applications, Baumer offers sensors designed for high-vibration environments and aggressive media. For example, sensors made of Hastelloy C or Monel with a ceramic sensing element are available for desalination plants. Flush mount versions are offered for sewage applications.

Baumer says that pressure and level measuring devices for water treatment applications have to be extremely robust. This extends beyond material selections for corrosion resistance into other aspects of those environments. For example, devices have to be highly resistant against continuous vibrations generated by volumetric pumps. That vibration resistance has to be tested according to the EN 60068-2-6 standard for verification. There are additional challenges caused by high pressures involved with reverse osmosis processes, along with the formation of foam, suspended solids, and condensation in tanks.

Baumer offers units with a wide range of process connections and galvanically isolated output signals. They are resistant against shocks and vibration, and feature high temperature resistance, accuracy, and long-term stability. The company suggests specific products for water treatment plants:

• Submersible probe ED752 for hydrostatic depth measurement;
• Modular PB series pressure transmitters;
• TED digital pressure switch;
• FlexLevel switch; and
• Ultrasonic sensors UNAR and UFAR.
These applications are growing in importance as the number of desalination plants grows and more sophisticated wastewater treatment processes such as ultra-filtration gain wider deployment.

-Edited by Peter Welander, process industries editor, PWelander@cfemedia.com
Control Engineering Process Instrumentation & Sensors Monthly eNewsletter
Register here to select your choice of free eNewsletters .



No comments
The Top Plant program honors outstanding manufacturing facilities in North America. View the 2013 Top Plant.
The Product of the Year program recognizes products newly released in the manufacturing industries.
The Leaders Under 40 program features outstanding young people who are making a difference in manufacturing. View the 2013 Leaders here.
The new control room: It's got all the bells and whistles - and alarms, too; Remote maintenance; Specifying VFDs
2014 forecast issue: To serve and to manufacture - Veterans will bring skill and discipline to the plant floor if we can find a way to get them there.
2013 Top Plant: Lincoln Electric Company, Cleveland, Ohio
Case Study Database

Case Study Database

Get more exposure for your case study by uploading it to the Plant Engineering case study database, where end-users can identify relevant solutions and explore what the experts are doing to effectively implement a variety of technology and productivity related projects.

These case studies provide examples of how knowledgeable solution providers have used technology, processes and people to create effective and successful implementations in real-world situations. Case studies can be completed by filling out a simple online form where you can outline the project title, abstract, and full story in 1500 words or less; upload photos, videos and a logo.

Click here to visit the Case Study Database and upload your case study.

Bring focus to PLC programming: 5 things to avoid in putting your system together; Managing the DCS upgrade; PLM upgrade: a step-by-step approach
Balancing the bagging triangle; PID tuning improves process efficiency; Standardizing control room HMIs
Commissioning electrical systems in mission critical facilities; Anticipating the Smart Grid; Mitigating arc flash hazards in medium-voltage switchgear; Comparing generator sizing software

Annual Salary Survey

Participate in the 2013 Salary Survey

In a year when manufacturing continued to lead the economic rebound, it makes sense that plant manager bonuses rebounded. Plant Engineering’s annual Salary Survey shows both wages and bonuses rose in 2012 after a retreat the year before.

Average salary across all job titles for plant floor management rose 3.5% to $95,446, and bonus compensation jumped to $15,162, a 4.2% increase from the 2010 level and double the 2011 total, which showed a sharp drop in bonus.

2012 Salary Survey Analysis

2012 Salary Survey Results

Maintenance and reliability tips and best practices from the maintenance and reliability coaches at Allied Reliability Group.
The One Voice for Manufacturing blog reports on federal public policy issues impacting the manufacturing sector. One Voice is a joint effort by the National Tooling and Machining...
The Society for Maintenance and Reliability Professionals an organization devoted...
Join this ongoing discussion of machine guarding topics, including solutions assessments, regulatory compliance, gap analysis...
IMS Research, recently acquired by IHS Inc., is a leading independent supplier of market research and consultancy to the global electronics industry.
Maintenance is not optional in manufacturing. It’s a profit center, driving productivity and uptime while reducing overall repair costs.
The Lachance on CMMS blog is about current maintenance topics. Blogger Paul Lachance is president and chief technology officer for Smartware Group.