Sensors & Transducers


Flow sensors and switches without moving parts

March 2001 Sensors & Transducers

The Weber flow-captor represents a family of a comprehensive and versatile range of calorimetric flow meters and switches. Calorimetric sensors are nonmechanical devices for the detection of flow of pasty, liquid or gaseous substances. 'Calorimetric' comes from the fact that heat energy is used to produce electrical signals that are proportional to the actual flow rates.

Benefits of calorimetric sensors over mechanical devices

The devices have no moving parts, this means that while other traditional devices - like paddle switches or turbine-switches - contain mechanical elements that are subject to wear, flow-captors do not. The result is optimum reliability and a long life span.

Calorimetric sensors are nonintrusive introducing no backpressure. Any measurement of the flow upstream of the flow-captor will be exactly the same as downstream.

Transistor outputs suffer no mechanical wear, offering a reliable switched-pulse output technique - and active temperature compensation ensures considerably reduced temperature drift. All this results in a reliable and precise flow sensor that is up to date with current technology.

Applications where these sensors would be suitable include:

* Water/wastewater: Monitoring the flow of water through filter stations, protection of pumps from 'dry run', controlling water intake in desalination plants.

* Paint manufacturing: Monitoring of material flow into mixing tanks, control of agitation in mixing tanks.

* Automotive: Detect nozzle clogging in paint spray booth, monitor flow of cooling water in engine test rigs, monitoring of coolant flow on large diesel engines etc.

* Sprinkler systems: Monitor mixing of water and foaming agents.

* Cement plants: Control of cooling circuits in cement crushers.

* Machinery: Control of coolant flow in tooling machines.

* Steel mills: Control of recycling pump in pickle tanks, control of process cooling water, monitoring of lubrication systems and reheat furnace cooling water systems.

Benefits of the captor flow sensor products:

* Easy installation - Set up and adjustment: (Less than 2 min to make any adjustment).

* Accuracy at low flow rates - Weber offers high precision in the lower flow area.

* High repeatability - The setpoint for an alarm signal will always trigger the device precisely at the same flow value - essential for repeatable performance.

* Sealed and potted housing - this gives a package that is shock, vibration and tamper proof.

* LED Display for actual flow, setpoint and output status, offering at a glance, immediately recognisable operating conditions.

info@spero.co.za

www.spero.co.za



Credit(s)



Share this article:
Share via emailShare via LinkedInPrint this page

Further reading:

Market opportunity for sensors in humanoid robots
Sensors & Transducers
A new IDTechEx report forecasts the market for sensors in humanoid robots will exceed $6,59 billion by 2037, driven by perception sensors, force/torque sensors, encoders and inertial measurement units across a growing range of commercial robot platforms.

Read more...
The wireless route to safer, more efficient mining operations
Emerson Automation Solutions Editor's Choice Sensors & Transducers
Modern wireless level measurement technologies are helping mining operations improve process control, increase safety and reduce installation costs. Emerson’s Rosemount 3408 wireless non-contacting radar level transmitter uses 80 GHz frequency-modulated continuous wave radar with HART communication to reach remote assets where cabling is impractical.

Read more...
Telco sensors for harsh environments
Sensors & Transducers
Telco sensors are designed to operate where moisture, particulate contamination and surface fouling would disable conventional sensors, with a range including an adjustable five-metre infrared proximity sensor for harsh industrial environments.

Read more...
The data-driven path to sustainable manufacturing
ifm - South Africa Editor's Choice Sensors & Transducers
Smart automation is closing the gap between operational efficiency and environmental responsibility, and the data to do it is already inside the plant. With ifm’s sensing and digitalisation technologies, manufacturers can turn machine intelligence into measurable sustainability gains.

Read more...
Expanding visibility in mining operations
Emerson Automation Solutions Editor's Choice Sensors & Transducers
Advances in wireless communications, condition monitoring and sensing technologies are helping mining operators extend measurement into previously under-monitored areas, improving equipment reliability, process performance and water stewardship.

Read more...
Fiber-optic amplifiers for precise object detection
ifm - South Africa Sensors & Transducers
The OCF fibre-optic amplifier detects even the smallest or most transparent objects in confined spaces, making proven fibre-optic technology easier and more user-friendly than before.

Read more...
The next era of measurement and instrumentation
Sensors & Transducers
Smart sensors and non-contact radar are reshaping industrial measurement, feeding connected platforms that predict failures before they happen.

Read more...
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...
Optimise sludge treatment and reduce operational costs
Endress+Hauser South Africa Sensors & Transducers
Endress+Hauser’s inline measuring devices, the Proline Teqwave MW 300 and the Proline Teqwave MW 500, determine the total solids content of wastewater directly through microwave transmission.

Read more...
Inclination sensors for motion control
ifm - South Africa Sensors & Transducers Motion Control & Drives
The JBC dynamic inclination sensor from ifm offers accurate angle measurement in the most demanding conditions, filtering out motion disturbances such as vibrations, shocks and vehicle dynamics to deliver reliable inclination values via IO-Link or programmable switch outputs.

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