November 2004Sensors & Transducers
Power Electronics / Power Management
The smart level sensors of the SK1-FSA series have been adjusted in the factory for standard applications. In this configuration, these level sensors are suitable for detecting aqueous media through glass or plastic walls without any further adjustment. With the factory setting, the devices are able to automatically mask out glass or plastic tank/tube walls for wall thicknesses ranging from 0,6 to 6 mm. The devices are also able to compensate for a considerable margin of foam, moisture and dirt adhering to the inside and outside of the vessel concerned.
For applications using vessels having thicker walls, the user can exceed the 6 mm wall thickness limit by altering the factory setting.
The SK1-FSA series features a capacitive sensor and integrated, self-compensating amplification circuitry and an M30 thread for mechanical mounting. They are available in PNP or NPN versions - and with a fly lead or a plug connection. Switching frequency is 2 Hz and they will operate within a -10 to +60°C temperature range.
Analysis of switch-mode power supply: inductor violations Altron Arrow
Editor's Choice Power Electronics / Power Management
Common switch-mode power supply (SMPS) design errors are discussed, and their appropriate rectification is specified, with details on complications that arise with the power stage design of DC-DC switching regulators.
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With the LI level sensor, you can reliably detect leakages and point levels on a permanent basis. The capacitive measuring system has no moving parts. Malfunction or maintenance issues due to deposits on the mechanical parts are therefore eliminated.
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The pulp and paper industry poses a major problem for most photoelectric sensors. The high level of contamination in these dusty, dirty and grimy environments makes it impossible for most competing sensors to operate and sense reliably and efficiently.
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To help users identify and localise ‘mechanical areas of interest’ within short timeframes, Comtest has added a unique new feature to Fluke’s ii910 precision acoustic imagers.
Read more...Make your small asset tracker last longer Altron Arrow
Editor's Choice Power Electronics / Power Management
This design solution reviews a typical asset tracking solution, and shows how the MAX3864x nanopower buck converter family, with its high efficiency and small size, enables longer battery life in small portables.
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RS South Africa has its own brand known as RS PRO, which offers a choice of over 88 000 products across all industries and technologies. The guaranteed quality and breadth of this range make RS PRO the smart choice for your business.
Read more...Smart alternative for float switches ifm - South Africa
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With the LI level sensor, you can reliably detect leakages and point levels on a permanent basis. The capacitive measuring system has no moving parts. Malfunction or maintenance issues due to deposits on the mechanical parts are therefore eliminated.
Read more...Optical fork sensor series Gail Norton Instrumentation
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The OFS series consists of self-contained optical fork sensors that are housed in a durable, U-shaped aluminum housing, which operates in through-beam mode.
Read more...Transmitting power to remote places Altron Arrow
Editor's Choice Power Electronics / Power Management
The new single-pair power over Ethernet (SPoE) allows for power and data to be transmitted over longer distances of up to 1000 metres.
Read more...In-line process transmitter to optimise sterile processes WIKA Instruments
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The new model DMSU22SA in-line process transmitter from WIKA helps to optimise sterile processes in the pharmaceutical and food industries, with less energy consumption, less cleaning effort ,and more safety.
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