Precision meter for all pressure types
May 2005
Pressure Measurement & Control
In certain applications, measurement of several types of pressure is often required. Consequently, Testo has designed a versatile instrument that can measure absolute, relative and differential pressure as well as temperature and velocity.
In various industries, pressure is the most measured parameter, even more than temperature. Many applications demand accurate measurements for different types of pressure. However, most portable measuring instruments only measure one kind of pressure. 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.
It 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 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 Patrick Dolz, UniTemp, 021 762 8995, [email protected], www.unitemp.com
Further reading:
Water under pressure
VEGA Controls SA
Pressure Measurement & Control
The need for real-time monitoring and precise control over water distribution has never been more critical. VEGA’s range of pressure sensors and level instruments plays an important role in ensuring that water systems operate efficiently.
Read more...
Paper might carry the message, but pressure carries the process
VEGA Controls SA
Pressure Measurement & Control
VEGABAR pressure transmitters are designed to address the unique challenges faced by the pulp and paper industry. Built for durability and precision, they ensure reliable pressure monitoring in aggressive environments.
Read more...
Capsules, steam and cream
VEGA Controls SA
Pressure Measurement & Control
African cosmetic brands are increasingly outsourcing production to specialised contract manufacturers who use automation and high-precision tools to ensure quality and adapt quickly to regulatory changes. VEGA’s suite of level and pressure measurement solutions offers a robust foundation for profitability and quality assurance.
Read more...
Differential pressure measurement made simple
VEGA Controls SA
Pressure Measurement & Control
The VEGADIF 85 serves as an exemplary model of a differential pressure sensor. It combines universal applicability with high operational dependability and integrated overload protection, ensuring consistent performance even in the harshest conditions.
Read more...
Smart pressure monitoring drives energy efficiency
ifm - South Africa
Pressure Measurement & Control
The ifm PG17 electronic pressure gauge is part of the company’s next-generation PG series. It integrates IO-Link technology, enabling seamless, loss-free data transmission via a 24 V signal.
Read more...
Electronic manometer with LED display
ifm - South Africa
Pressure Measurement & Control
The new generation of PG type manometers are equipped with IO-Link and modern display units. Illuminated LED markings provide a quick overview of the current measured value. In addition to the various setting options for the display unit, IO-Link offers other advantages such as easy commissioning, quick sensor replacement and remote access options.
Read more...
Rapid, precise pressure control for industrial applications
WIKA Instruments
Pressure Measurement & Control
The CPC3050 high-speed pressure controller delivers rapid, precise pressure control for industrial applications, achieving three-point verification in ten seconds.
Read more...
Differential pressure measurement in gas extraction and power generation project
VEGA Controls SA
Pressure Measurement & Control
Methane exploration and extraction in Lake Kivu in the East African Rift Valley has primarily focused on gas composition analysis. The VEGABAR 82 pressure transmitter was used for differential pressure measurement, the key to monitoring gas levels within the lake.
Read more...
Don’t buckle under pressure
VEGA Controls SA
Pressure Measurement & Control
In Africa, urban populations are increasing and infrastructure is expanding at an unprecedented pace. This makes sustainable water management and treatment more crucial than ever. By investing in VEGA pressure instrumentation, water utilities and municipalities are equipping themselves with pressure sensors that facilitate sustainable water management focused on efficiency, reliability and resilience.
Read more...
VEGA handles the pressures of water treatment systems
VEGA Controls SA
Pressure Measurement & Control
A water treatment system for a major metropolitan area in the Midwestern United States demands careful monitoring and management of processes across its sprawling network. Choosing VEGA for its process automation needs meant more than just obtaining precise and reliable pressure sensors.
Read more...
printer friendly version