Sensors & Transducers


Latest Articles

Furnace explosion protection
December 2005, Environmental Process Analytics
Furnace and high temperature process engineers face a continued problem of explosion risks. Conventionally, plants are equipped with hydrogen analysers. Typically hydrogen sensors are placed in the down ...

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Smallest colour vision sensor
November 2005
The unit carries out a great variety of image processing tasks with its various operating modes including checking for the presence of objects, pixel comparison, shape analysis and reference image comparison

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Capacitive sensors
November 2005, Gail Norton Instrumentation
Gail Norton Instrumentation is offering a comprehensive range of Sensorik capacitive sensors. The devices include adhesive types, mini versions and the associated sensor amplifiers. Devices in this range ...

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Self-contained multibeam light curtain
November 2005, Gail Norton Instrumentation
The SG 09 forms a protective screen by generating a curtain of up to 79 infrared criss-cross beams with protection up to a height of 1610 mm, ensuring detection of passing passengers and thus preventing ...

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Hollow shaft encoders
November 2005, ATI Systems
Fraba Posital's Optocode series of absolute rotary encoders now also includes models with a hollow shaft (ø 12 mm) that may be fitted with a torque support or clamping rings on both sides. The encoders ...

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Low-cost light curtain system
November 2005, Turck Banner Southern Africa
Banner Engineering has introduced its EZ-Screen Type 2 light screen system designed for lower risk Type 2 applications (per IEC61496-1/-2, Category 2 per EN954-1). Lower risk applications are those which ...

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ATEX approved IS vibration sensors
November 2005, Temperature Controls
Monitran has introduced a new family of intrinsically safe vibration sensors that meet with the latest approval for ATEX Group I and II. This series is called the MTN/1100I series, and it offers a wide ...

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All-round protection for safety light curtains
October 2005
New to ASSTech Process Electronics and Instrumentation are Wenglor Sensoric's new safety columns for safety light curtains which provide reliable protection against mechanical influences. They are distinguished ...

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Ultrasonic sensor for water applications
October 2005, VEGA Controls SA
Vega's range of ultrasonic, non-contact level measuring sensors, the Vegason 61, 62 and 63 is available in IP68 rating, which means the sensors are suitable for various level measuring applications in ...

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Intelligent light curtains
October 2005, Gail Norton Instrumentation
The new line of Merlin light curtains are designed to meet and exceed demanding safety requirements without hampering production.    Features include:    * User friendly controls and instructions. * Replaceable ...

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Valve position sensors in new housing style
October 2005, Turck Banner Southern Africa
Turck has announced a new addition to its growing line of valve position sensors, which have been part of Turck's product offering for several years. The original DS20 sensors have provided a quality ...

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Fill level sensors
October 2005, Gail Norton Instrumentation
With compact dimensions (34 mm x 16 mm x 8 mm), the microBOX sensor also excels in terms of easy installation. The sensor itself has two 3 mm mounting boreholes countersunk on both sides, that enable ...

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High-accuracy current transducers
October 2005
LEM's IT 400-S and the IT 700-S are specified respectively for 400 and 700 A rms nominal. As with other members of the family, they offer very high accuracy, based on resolution better than 0,05 ppm, ...

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IS vibration sensor
October 2005, PREI Instrumentation
The Metrix model ST5484E from PREI Instrumentation has been rated EEx ia 11C T4 intrinsically safe and may be used in potentially explosive atmospheres. This vibration sensor is a 2-wire loop-powered ...

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Measuring ultrasonically
October 2005
Proximity switches, capacitive and photoelectric sensors are capable of detecting objects within fixed distances. However, these measurements are depending on surface structure, colour and material of ...

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Absolute encoders with DeviceNet interface
October 2005, ATI Systems
DeviceNet rotary encoders from Fraba Posital are now also available with plug connectors or cable exits, providing new interface alternatives to their proven cap connection units. The company has simultaneously ...

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Proximity sensors for metal detection
September 2005, Turck Banner Southern Africa
Factor 1 sensors are equally sensitive to all metals.

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Tribo-electric dust sensor characteristics
September 2005, Environmental Process Analytics
DC tribo-electric devices are only slightly influenced by particle size distribution, whereas AC devices possess an unpredictable sensitivity to velocity and gas temperature effects, limiting their calibration to one particular plant condition only.

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Earth leakage transducers
September 2005
LEM is offering the CT family of current transducers for use in a range of safety applications including solar installations. The new transducers measure an AC or DC leakage current of 30 mA or more (with ...

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Sensing volatile organic gas compounds
September 2005
Various sensor technologies are currently used for the detection of toxic and combustible gases. The most common ones are solid state, catalytic bead, electrochemical, infrared and photo-ionisation detectors. ...

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