The EPIC noncontact position transmitter represented a significant departure from previous attempts to reliably measure the position of rotary control valves. As opposed to conventional devices, couplers are not utilised. A magnetic proximity module, attached to the actuator output shaft is the only 'moving' part in the transmitter. Sensing is performed totally by noncontacting means, based upon characterisation of flux strength as a function of axial position.
A solid-state sensor is employed, whose output is a function of both flux density and excitation voltage. That property allows the use of an internal bridge circuit for accurate zero adjustment, where one arm of the bridge is comprised of the sensor, and the other comprised of a resistive divider for zero reference.
Transmitter output is 4-20 mA, two-wire, with compliance voltage ranging from 14,5 to 35 V. Output updating takes place 20 times per second, allowing use of the transmitter for applications not possible with transmitters of other types. The inherent reliability of the transmitter permits use of advanced control strategies, where knowledge of valve position can be used in predictive and other algorithms.
Leading the way with Level 9 PDS implementation
Sensors & Transducers
Applying a Level 9 Proximity Detection System (PDS) to a mining operation is as much about changes in behaviour as it is about technical solutions, according to Pieter Wolfaardt from Apex, Booyco Electronics’ training partner of choice.
Read more...Enhanced automated weld inspection system
Sensors & Transducers
SmartRay is offering the release of new hardware for its weld inspection system, JOSY, delivering elevated performance and flexibility in the process.
Read more...Leaders in sensor technology Gail Norton Instrumentation
Sensors & Transducers
Photoelectric eyes have always needed perfect working conditions, but in the workplace there is no such thing. Steam, water, light and dirt interfere with most photoelectric eyes, but never with a Telco sensor.
Read more...Easy parameter setting of vision sensors ifm - South Africa
Sensors & Transducers
Contour verification and object inspection are two of the most important functionalities in industrial imaging. With the new O2D5xx series, ifm now offers a solution that perfectly masters both functionalities
Read more...Keeping a close eye on product quality and purity Endress+Hauser South Africa
Sensors & Transducers
Colour measurements are necessary in many processes to avoid product losses and ensure safe production and batching. The Memosens Wave CKI50 process spectrometer from Endress+Hauser is a compact, robust and process-friendly device allowing quality, batching and phase checks to be performed by a single instrument for the entire visible colour spectrum.
Read more...The sensory reaction of building management systems Schneider Electric South Africa
Sensors & Transducers
Today’s building management systems (BMS) cannot function properly without sensors. This is so critical that if sensors start failing, they can become ‘blind’.
Read more...Advanced sensor technology to reduce vehicle fatalities Senseca
Sensors & Transducers
Measurement technology plays a critical role across a range of industries. This is especially true when supplying highly accurate and reliable data for road management entities that assist drivers of vehicles experiencing hazardous weather conditions.
Read more...Chubbsafes celebrates 190 years Gunnebo Safe Storage Africa
News & Events Security Services & Risk Management
Chubbsafes marks its 190th anniversary in 2025 and as a highlight of the anniversary celebrations it is launching the Chubbsafes 1835, a limited edition 190th-anniversary collector’s safe.
Read more...New law enforcement request portal
News & Events Security Services & Risk Management
inDrive launches law enforcement request portal in South Africa to support safety investigations. New portal allows authorised South African law enforcement officials to securely request user data related to safety incidents.
Read more...Continuous AML risk monitoring
Access Control & Identity Management Security Services & Risk Management Financial (Industry)
AU10TIX, launched continuous risk monitoring as part of its advanced anti-money laundering (AML) solution, empowering businesses to detect behavioural anomalies and emerging threats as they arise.
printer friendly version