Temperature Measurement


Predicting problems saves money

March 2002 Temperature Measurement

Unexpected breakdowns can be very expensive, not only in terms of the cost of emergency repairs, but also the cost of production lost. Many problems can be predicted by monitoring the temperature of electrical systems, bearings and pipelines. Overheating can also create a fire hazard.

PREI Instrumentation have a complete range of Raytek noncontact infra-red thermometers with an accuracy of 1%, which are money-saving tools for diagnostic and predictive maintenance.

There are 20 different models of these handheld thermometers, which cover the range from -50 to +3000°C. Many have laser sighting, some have data loggers, and a few are intrinsically safe. A short form of these portable infrared thermometers is available on request.

* Normal on/off current loading and environmental temperature changes cause electrical connections to expand and contract and gradually loosen. A loosened or corroded connector has a higher resistance to current flow, dissipates power and gets hot.

* The life of electrical insulation material on windings in motors and transformers is drastically shortened if the operating temperatures exceed rated maximums.

* Rotating equipment is supported on bearings, and when the equipment vibrates, the bearings get hot and eventually fail - often at the most inconvenient time.

* Three phase power systems are common, and generally the power is balanced. If this balance is upset due to an internal problem, one phase will be overloaded, which will cause one of the cables and connectors to be hotter than the other two.

* If the temperature of cooling water or oil rises, it indicates a problem. Temperature scanning of the pipes is quick and easy - and could result in the prompt prevention of a disaster.

* Ageing electrical components cause fluorescent lighting ballasts to overheat. These fittings are usually out of reach for checking by anything other than a noncontact thermometer.

Noncontact thermometers have been around for over 30 years. They are tools which give very quick information on equipment which cannot be reach or touched because (a) it is moving, (b) it is hygienic (food) or (c) it is dangerous (live electrical contacts).

Norman Woolf, PREI Instrumentation

011 448 2172

prei@hixnet.co.za



Credit(s)



Share this article:
Share via emailShare via LinkedInPrint this page

Further reading:

One sensor, three switchable output modes with IO-Link
Temperature Measurement
: Siemens’ new Sitrans TS200 IO-Link temperature sensor is available in three sizes, and offers three switchable output modes in one device with remote firmware update capability and an integrated LED for quick status checks.

Read more...
SCE appointed authorised Vaisala distributor for South Africa
Temperature Measurement
SCE has been appointed the authorised Vaisala distributor for South Africa, giving local engineers direct access to world-class humidity, temperature and CO2 measurement technology backed by full in-country calibration and technical support.

Read more...
Thermal imaging camera with high thermal resolution
Vepac Electronics Temperature Measurement Maintenance, Test & Measurement, Calibration
Vepac Electronics introduces a compact thermal imaging camera that helps technicians spot temperature problems before they become costly failures.

Read more...
Test bench for temperature calibrating power semiconductors
Beckhoff Automation Temperature Measurement
Precise temperature characteristics are essential for performing power cycling tests on power semiconductors. Infineon Technologies determines these characteristic curves on a test bench using PC-based control. As a result, calibration has become more precise and the efficiency of the entire test laboratory has increased significantly.

Read more...
Fire prevention strategies with thermal imaging
Temperature Measurement
Effective fire prevention strategies focus on identifying, reducing and managing fire risks before they become incidents. Through proactive measures, planning and reliable detection technologies, organisations can create safer environments and minimise the likelihood of fire outbreaks.

Read more...
High-precision fill quantity control in food supplement production
Temperature Measurement
Vital Products was looking for a precise and efficient solution to check the weight and ensure the completeness of its products. Minebea Intec, a specialist in industrial weighing and inspection technologies, was able to provide a solution.

Read more...
Infrared solutions for glass manufacturing challenges
Instrotech Temperature Measurement
In the glass industry, infrared temperature monitoring is crucial for maintaining product quality and process efficiency. Instrotech has infrared sensors and cameras which provide non-contact temperature measurements, making them ideal for these high-temperature environments.

Read more...
Decarbonising a heat and power plant
Valmet South Africa Temperature Measurement
Valmet is delivering a boiler fuel conversion for a combined heat and power plant in Poland. After modernisation, coal will be replaced entirely with certified forest biomass supplied by local providers.

Read more...
Intelligent process stabilisation in injection moulding
Temperature Measurement
A new benchmark in precision temperature control for plastics processing is being set by technotrans.

Read more...
New temperature transmitters with Profibus connectivity
Temperature Measurement
Siemens is enhancing its temperature measuring device portfolio with the transmitter duo, Sitrans TH420 PA and Sitrans TF420 PA. Both devices feature Profibus connectivity, advanced safety functions and expedited commissioning all in one unit.

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