In coal-fired power plants, steam is produced by pumping highly purified water through boiler tubes. The water is heated to a high temperature and pressure, and then flows through several orifices into the steam turbine. Once past the orifice, the water pressure drops and it immediately flashes into superheated steam, which is directed toward the turbine blades at high velocity. Due to the high velocity of the superheated steam, the turbine blades start to rotate and turn the turbine shaft, which is connected to the generator through reduction gears, and thereby ultimately generates electricity.
Valve position, pressure and temperature measurements are all necessary to ensure stability in this process. A solution for this application is a setup with a potentiometer for valve position measurement, a 2-wire style pressure transmitter and a 4-wire RTD for precise temperature measurements. All three signals are connected to individual PR Electronics PR 4114 universal transmitters, which output 0-10 VDC signals to the PLC.
The 4501 display/programming front allows local readout of both input and output signal and the process calibration function in the advanced menu provides easy and precise calibration of the open and closed valve positions.
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...High-precision automated inspection
Sensors & Transducers
Delivering advanced inline metrology to an expanding range of challenging industries, SmartRay is launching the smallest field-of-view 3D sensor of its cutting-edge ECCO X series.
Read more...Long-range laser distance measuring sensor Vepac Electronics
Sensors & Transducers
The MS-100A is a long-range laser distance measuring sensor with a range of 150 to 1000 mm. This sensor excels in applications requiring extended measurement capabilities, such as quality control and logistics.
Read more...The power of smart maintenance for securing water supply Omron Electronics
Sensors & Transducers
The water industry plays an essential role in delivering safe drinking water and effective wastewater services to society and various industries. A lack of maintenance could have severe consequences, as even the failure of a single component can significantly impact operations, and maintenance expenses represent a substantial part of the overall costs of water and pumping systems.
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