Sensors & Transducers


Electrodeless conductivity sensors

October 2001 Sensors & Transducers

The common problems of polarisation and coating, or chemical attack and abrasion, which affect conventional electrode-type conductivity sensors, will not affect the GLI electrodeless sensors from PREI Instrumentation. These sensors operate by inducing an alternating current in a closed loop of solution, and then measuring the magnitude of this to determine the conductivity.

A variety of body materials are available to provide resistance to aggressive chemicals, and sanitary (CIP) versions are offered for use in the food and beverage industries. The sensors measure from 0-200 mS/cm to 0-2000 mS/cm and have a built-in Pt1000 RTD to automatically compensate for process temperature changes. Rugged and nonfouling, these sensors have versatile mounting configurations, making them suitable for in-line or submersion mounting, and they can be connected to a range of panel or wall-mounting instruments.

They are particularly useful for leak detection in heat exchanges, acid and caustic dilution, chemical concentration control, wet chemical scrubbers, solvent and water separators, and waste water applications in metal finishing, pulp and paper, pharmaceutical, food and chemical industries.



Credit(s)



Share this article:
Share via emailShare via LinkedInPrint this page

Further reading:

Distance sensor for confined spaces
ifm - South Africa Sensors & Transducers
The O6D100 from ifm has been designed as a powerful all-rounder for typical applications in object detection, distance measurement and positioning.

Read more...
Long-range laser distance measuring sensor
Vepac Electronics Sensors & Transducers
The MS-100A is a long-range laser distance measuring sensor with a range of 150 to 1000 mm. This sensor excels in applications requiring extended measurement capabilities, such as quality control and logistics.

Read more...
Listening for damage to wind turbines
Sensors & Transducers
The Fraunhofer Institute for Integrated Circuits, working in concert with the Fraunhofer Institute for Wind Energy Systems, has developed a solution that can be used to identify cracks and breakage inside wind turbine blades remotely at an early stage.

Read more...
Verification using Heartbeat Technology is a breeze
Endress+Hauser South Africa Sensors & Transducers
Heartbeat Technology reflects Endress+Hauser’s long-term commitment to enhancing measurement reliability and efficiency across a growing product portfolio.

Read more...
Enhancing efficiency and reliability in the energy sector
VEGA Controls SA Sensors & Transducers
VEGA offers practical, reliable solutions through specialised measuring instruments and deep industry know-how, all tailored to help energy companies keep costs under control while meeting strict regulatory standards.

Read more...
Condition monitoring for hydroelectric plants
ifm - South Africa Sensors & Transducers
The energy company Compagnia Valdostana delle Acque generates electricity in the region’s 32 hydroelectric power plants with a total capacity of over 900 MW. Vibration sensors from ifm monitor the maintenance requirements of the turbines and power generators at all times.

Read more...
Precision sensing for water treatment
ifm - South Africa Sensors & Transducers
ifm electronic has introduced two next-generation sensors designed for South Africa’s bulk and wastewater sector, engineered to withstand harsh environments and deliver long-term reliability.

Read more...
The next generation of inductive scanning encoder solutions
ATI Systems Editor's Choice Sensors & Transducers
With the launch of the ECI 1122 and EQI 1134 rotary encoders, positioning specialist, HEIDENHAIN has introduced a new benchmark in inductive scanning technology that raises the bar for motion control and precision automation.

Read more...
Next-generation condition monitoring
Sensors & Transducers
The next generation Sitrans MS200 multisensor from Siemens is setting new standards in condition monitoring.

Read more...
Telco sensors for blocked/empty chute detection
Sensors & Transducers
Telco sensors overcome the problems of contaminated environments through powerful high-performance infrared sensors that ensure penetration of harsh pollution and guarantee reliable detectio

Read more...









While every effort has been made to ensure the accuracy of the information contained herein, the publisher and its agents cannot be held responsible for any errors contained, or any loss incurred as a result. Articles published do not necessarily reflect the views of the publishers. The editor reserves the right to alter or cut copy. Articles submitted are deemed to have been cleared for publication. Advertisements and company contact details are published as provided by the advertiser. Technews Publishing (Pty) Ltd cannot be held responsible for the accuracy or veracity of supplied material.




© Technews Publishing (Pty) Ltd | All Rights Reserved