Electricity + Control September 2018

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CONTROL SYSTEMS + AUTOMATION + SYSTEMS ENGINEERING

Incremental encoders offer optimum flexibility

tether allowing for mechanical stresses caused by angular, axial or radial misalignment between the rotating shaft and the encoder. Again, the design of this encoder allows for unrestricted mount- ing depths as the shaft passes completely through the encoder body. Shaft diameters of 15 mm up to 42 mm are available with a protection class rating of IP40 and resolutions of 500, 1 000 and 1 024 PPR. Enquiries: Gerry Bryant.Tel. +27 (0) 11 615 7556 or email bryant@countapulse.co.za

The range of Hengstler incremental encoders offers users opti- mum flexibility with an encoder for every application. According to South African distributor, Countapulse Controls, the available options allow for customised solutions. With more than 20 standard models to choose from, customers are offered a choice between heavy- or light-duty options, as well as aluminium or stainless steel housing material. There are also multiple connection options, facilitating a fit-for-purpose encoder. The Hengstler RI32-O incremental rotary encoder is popular for light duty applications and, being one of the smallest encoders available, it is ideal for use in limited space. With an aluminium shaft and a 30 mm diameter housing constructed of plastic, the devices are lightweight and durable. The range includes 5 mm and 6 mm solid shaft diameters, with protection class ratings of IP40 and resolutions of up to 1 500 PPR (Pulses Per Revolution). Known as an economy encoder, the Hengstler RI38-O incre- mental rotary encoder is also favoured for light-duty applications. The shaft is made of stainless steel and the housing is constructed of glass fibre reinforced plastic material. This makes it an economi- cal, light and durable product. A 6 mm diameter solid shaft version is available with a protection class rating of IP40 and resolutions of up to 1 024 PPR. The Hengstler RI58-O incremental encoder is a universal indus- try standard encoder. The 58 mm diameter housing is aluminium while the shaft is stainless steel. This encoder offers a choice of product configuration options, for example, a clamping flange ver- sion with solid shaft diameters of 10 mm and 12 mm with a pro- tection class rating of IP64 and resolutions of up to 5 000 PPR. The encoder is available with a PPR up to 10 000 if required. Designed for direct mounting onto rotating shafts, the Hengstler RI58-D incremental rotary encoder is secured by a front clamping ring and the main body of the encoder by a stator coupling or set screw. The through shaft design allows for unrestricted mounting depths as the shaft passes completely through the encoder body. The front clamping ring version is available with shaft diameters of 10 mm and 12 mm and a protection class rating of IP64 with resolutions of up to 5 000 PPR Also, directly mounted onto rotating shafts, the Hengstler RI76TD incremental rotary encoder is secured by a front flexible

Electricity + Control

SEPTEMBER 2018

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