Unique new SICK DFS60 Incremental Encoders

19 August 2008

High positional accuracy is uniquely combined with customer programmability and competitive prices by SICK's new DFS60 award-winning series of rugged, IP65 protected, high resolution incremental encoders.

'No matter how harsh the working environment, the DFS60 series delivers positional accuracy that enables precision process control, improving quality and reducing material waste,' comments SICK Encoder product manager Darren Pratt.

'The DFS60 series starts at a very competitive list price of £100. For an encoder which delivers the highest levels of accuracy even in difficult environmental conditions and high vibration, that's at least 30 per cent less than anything comparable on the market.

'While the budget level Eco model is factory specified, there's a DFS60 to meet every requirement. Some variants enable on-site customer programmability, with line counts up to 65,536, a zero pulse width of 90 to 270 electrical degrees and the output level of the signals TTL or HTL all fully programmable.

'This precision facility enables the encoders to be fine tuned or re-programmed to meet application needs; there's nothing else like it available,' claims Pratt. 'Its versatility and reprogrammability means the DFS60 is ideal for machinery development and integration work on complex or bespoke systems. At the same time, this versatility enables it to be held as a replacement stock item for a wide number of applications, reducing spares stocking costs and ensuring machinery availability.

'A comprehensive range of application mountings can be realised by the 18 different mechanical designs, including different diameters of hollow and solid shafts; the DFS60 can be used virtually everywhere. It's just been introduced in the USA, where it won Product of the Year award from Plant Engineering.'

A number of innovative design features make the DFS60 the leading encoder in its class. These include the positioning of the bearings. They are separated as widely as possible within the encoder body, to achieve smooth and vibration-free running unmatched by any other encoder. This also increases the life expectancy of the encoder.

IP65 protection, a high shock resistance of 70G and a wide operating temperature range, ensure that high precision speed and position indication is delivered even in the harshest industrial conditions.

The robustness of the DFS60 is due to the use of new pick-up technology which uses a unique nickel code disc. This technology reproduces the accuracy of traditional glass code discs, without their fragility. With a temperature range of -20º to +100ºC, it exceeds the physical capabilities of plastic discs, as well as achieving much better resolutions.

'The DFS60 has virtually universal applicability,' says Pratt. 'It's an encoder for all budgets and all demands, creating a class of its own.'

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