Versatile precision pressure meter
First Quarter 2005
Other technologies
In many applications, flexibility in pressure measurement is often required. Consequently, Testo has designed a versatile instrument that can measure absolute, relative and differential pressure as well as temperature and velocity.
Across the industries, pressure is arguably the most measured parameter - even more so than temperature. Many applications demand accurate measurement of pressure in a variety of different configurations. Most portable measuring instruments only lend themselves to one measuring configuration. Thus, a number of instruments are needed for effective process optimisation.
Testo has introduced a meter that measures absolute, relative and differential pressures as well as velocity and temperature. As a result, only one instrument is needed for the most common parameter measurements. The testo 521 is an accurate differential pressure meter, with an internal pressure sensor up to 10 kPa, and is suitable for Pitot tube measurements in the range 5 to 100 m/s.
The instrument has two external sockets for further measurements of absolute pressure up to 200 kPa, relative pressure up to 40 MPa, air, liquid or surface temperatures in the range -200 to +1250°C, and velocity measurements in the range 1 to 12 m/s. This unit is also capable of measuring any parameter with a 4 to 20 mA interface.
The testo 521 is available in two accuracy classes: testo 521-1 with built-in pressure sensor in the class 0,2% of full-scale value or the testo 521-2 with built-in pressure sensor in the class 0,1% of full-scale value. The measurement data can be logged and then analysed on a PC, via ComSoft, or printed on-site with the testo 525 printer. Direct calculation of velocity and volume flow, multipoint, timed mean calculation and density compensation is possible via the instrument or the ComSoft software program.
For more information contact Marcel Kelly, UniTemp, +27 (0) 11 392 5989, [email protected], www.unitemp.com
Further reading:
Bringing true mobile welding capability to SA agriculture
Other technologies
Bolt and Engineering Distributors has launched the new Fronius Ignis Battery. This is a next-generation, battery-powered welding system engineered for mobility, reliability and performance in off-grid agricultural environments.
Read more...
Rising demand for advanced coolant technology
Other technologies
As modern engines become smaller, more powerful and increasingly complex, coolant technology has undergone a fundamental transformation.
Read more...
Monitoring relays keep operations running
Omron Electronics
Other technologies
OMRON’s K8 series relays are designed to prevent breakdowns, protect critical assets and support smarter maintenance strategies on the plant.
Read more...
Additives drive fuel efficiency and engine protection
Bearing Man Group T/A BMG
Other technologies
Rising fuel costs and increasing pressure on equipment reliability are driving demand for solutions that improve diesel engine efficiency. BMG addresses this requirement in Africa through its range of Liqui Moly additives.
Read more...
Next-generation grease pumps
SKF South Africa
Other technologies
SKF has introduced its latest advancement in lubrication technology with the unveiling of a new line of air-operated grease pumps.
Read more...
Oil analysis is an investment that pays a cost-savings dividend
Other technologies
The majority of organisations implementing oil analysis face the challenge of maximising operational cost savings against the pressure to achieve full production and enhance shareholder value. An organisation may, or may not, achieve the intended benefits for several reasons, chief among them being the failure to implement a sound corrective-action strategy.
Read more...
Lubricant and feed gear pumps for heavy-duty lubrication systems
Bearing Man Group T/A BMG
Other technologies
BMG’s Steimel SF range of lubricant and feed gear pumps was developed for continuous-duty oil circulation, transfer and conditioning applications.
Read more...
The cost of incorrect lubrication
Other technologies
Sam Kekana, technical sales representative at Lubrication Engineers has spent years working with plant maintenance teams across a range of industries, and he has seen where lubrication goes wrong and what it costs companies when it does.
Read more...
Lubrication system upgrade reinforces efficiency and reliability across six sugar mills
SKF South Africa
Other technologies
SKF’s Single Line automatic grease system has streamlined operations across six sugar mills, delivering peak efficiency while ensuring the producer upholds rigorous international health and safety standards.
Read more...
The AI skills every engineer now needs
Other technologies
To use AI responsibly and effectively, you need at least a basic understanding of how they work and where they can fail. Generative AI then becomes a powerful assistant; without it, you are effectively ‘prompting and praying’, exposing yourself to errors and professional embarrassment.
Read more...
printer friendly version