Pressure sensor for application in pneumatics

January 2011 Analytical Instrumentation & Environmental Monitoring

ifm electronic’s compact PQ Series pressure sensors are designed for the pneumatic applications typically found in robotics and material handling applications, measuring the full range of pressure and vacuum typical in these applications. The cube-shaped sensor easily retrofits traditional pressure switches at a cost effective price, and measuring only 32 x 30 x 42 mm the compact unit is easy to install in areas with limited mounting space.

Application parameters are established using two pushbuttons. The bright, four-digit display indicates system pressure and can be clearly seen from long distances. The sensor features two programmable switching outputs or one switching and one diagnostic output. In addition, the values can be programmed to change colour depending on the switching output status (eg, red if the output is switched; green if it is not.)

The technology is based on a piezo-resistive measuring element. The silicon measuring cell is insensitive to liquids (eg, condensed water) and deposits that might occur in the system. The cell changes resistance when pressure is applied, which transformed into an electric signal proportional to the pressure. The silicon measuring cell guarantees a high overload resistance as well as an accuracy of ±0,5%.

For mounting purposes, the PQ pressure sensor can be fixed to flat surfaces and profiles using the sensor’s two M4 drill holes located in the front of the sensor. The PQ can be mounted to a DIN rail or connected to plates or manifolds using ifm’s robust DIN rail bracket. It can also be connected to air lines through the G-1/8 port using a 6 mm or 8 mm tubing adapter.

Two models are available. PQ7809 has a measuring range of -14,5 to 14,5 psi and the PQ7834 has a measuring range of -14,5 to 145 psi. Electrical connection is made through an M8 Pico DC connector.

For more information contact Chris Cronjé, ifm electronicSA, 086 143 6772, [email protected], www.ifm.com/za

Further reading:

Oxygen measurement in beverages
Analytical Instrumentation & Environmental Monitoring
[Sponsored] Anton Paar offers a complete range of oxygen measurement instruments for total package oxygen (TPO) measurements, at-line quality control (QC), and in-process monitoring. These instruments help beverage manufacturers achieve accurate, reliable oxygen control at every stage of production.

Read more...

---

Analysers achieve OIML R140/MID accuracy class A certification
Analytical Instrumentation & Environmental Monitoring
Qmicro by Sensirion has received the OIML R140/MID accuracy class A certificate No. TC12537 for its DynamiQ-X GC analysers for the analysis of natural gas and natural gas blended with hydrogen.

Read more...

---

Sustainable water management
Wearcheck Analytical Instrumentation & Environmental Monitoring
Water sustainability is critical for the future wellbeing of people, land and marine ecosystems, and socio-economic development. WearCheck Water provides a range of water analysis techniques to determine water quality for various sectors, including mining, agriculture, domestic and the healthcare industry.”

Read more...

---

Biofilm monitoring system
Instek Control Analytical Instrumentation & Environmental Monitoring
Alvim, through Instek Controls, provides innovative, high-tech solutions for biofilm and biofouling monitoring in industrial plants.

Read more...

---

WearCheck Water earns AdBlue/DEF analysis accreditation
Wearcheck Analytical Instrumentation & Environmental Monitoring
WearCheck Water recently became the first laboratory in Africa to be officially ISO17025 accredited to test AdBlue diesel exhaust fluid by the South African National Accreditation System.

Read more...

---

Streamlining strain gauge load cell integration
Vepac Electronics Analytical Instrumentation & Environmental Monitoring
Vepac’s data acquisition hardware provides an efficient and effective all-in-one solution for customers looking to simplify, enhance and optimise their strain gauge load cell systems.

Read more...

---

Oxygen measurement in beverages
Anton Paar Analytical Instrumentation & Environmental Monitoring
[Sponsored] Anton Paar offers a complete range of oxygen measurement instruments for total package oxygen (TPO) measurements, at-line quality control (QC), and in-process monitoring. These instruments help beverage manufacturers achieve accurate, reliable oxygen control at every stage of production.

Read more...

---

Sensors and controls for food, beverage and pharmaceutical
Instek Control Analytical Instrumentation & Environmental Monitoring
Included in Instek Control’s range is Anderson-Negele, which has adopted ‘Hygienic By Design’ as its guiding principle, with a particular focus on meeting the stringent regulatory requirements found in industries such as dairy, brewery or pharmaceutical.

Read more...

---

Vertical labelling of test tubes in clinical laboratories
Omron Electronics Analytical Instrumentation & Environmental Monitoring
Werfen has implemented a new automated machine for the supply of reagents to drug toxicology laboratories, built by MACCO in collaboration with OMRON and Marini Pandolfi. It uses OMRON SCARA robots and advanced vision systems to ensure reagent quality through vertical handling and labelling process of test tubes.

Read more...

---

Keeping a close eye on product quality and purity
Endress+Hauser South Africa Analytical Instrumentation & Environmental Monitoring
Colour measurements are necessary in many processes to avoid product losses and ensure safe production and batching.

Read more...

---