Gurley Precision Instruments (Troy, NY) offers the A08/R108 series rotary encoder that provides both incremental (to 4,096 counts) and absolute (up to 12 bits) position information in an 8-mm-diameter package. Available in both a shaft and blind hollow-shaft configuration, the encoder offers several mounting and interface options. Optional temperature range is available from -40 to 85 ºC, and a radial/axial load of 3N. Output options include an RS-422 differential line driver for incremental applications or SSI with gray-code or natural binary where absolute feedback is required.
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