# WPS 112/221/440/900 or ODC 96/192/288/384/480/768/960 Sensor Installation for to Reduce the Effect of Twist > WPS 112/221/440/900 or ODC 96/192/288/384/480/768/960 Sensor Installation for to Reduce the Effect of Twist **Last updated:** 2026-03-07 **Source:** https://r2r.tech/documentation/manuals/wps-112221440900-or-odc-96192288384480768960-sensor-installation-reduce --- **Document Type:** Manuals WPS 112/221/440/900 or ODC 96/192/288/384/480/768/960 Sensor Installation for to Reduce the Effect of Twist ## Transcript WPS 221 Sensor Installation for to Reduce the Effect of Twist Web Guide Roller (exit roller) When the Sensor is Closer to Web Guide Web Twists Creates a Large Amount of Variation in the Distance Between the Web and the Sensor   As the Sensor is Moved Farther Down the Span the Web Twist Creates Lesser Amount of Variation in the Distance Between the Web and the Sensor  Even Though the Effect of Web Twist Will be Small in this Location it is not Recommended to Install the Sensor in the Second Half of the Exit Span ## Downloads - [WPS-221-Installation-to-Reduce-Effect-of-Twisting.pdf](https://r2r.tech/sites/default/files/2020-10/WPS-221-Installation-to-Reduce-Effect-of-Twisting.pdf) ## Related Products - WPS 112 - WPS 221 - WPS 440 - WPS 900 - ODC 96 - ODC 192 - ODC 288 - ODC 384 - ODC 480 - ODC 768 - ODC 960 **Tags:** WPS 112, WPS 221, WPS 440, WPS 900, ODC 96, ODC 192, ODC 288, ODC 384, ODC 480, ODC 768, ODC 960 --- ## About Roll-2-Roll Technologies Roll-2-Roll Technologies designs and manufactures patented fiber-optic web position sensors and advanced web guiding controllers — the precision measurement and control core of modern roll-to-roll manufacturing. Spun out of Oklahoma State University's Web Handling Research Center and trusted by Fortune 500 medical, battery, and nonwovens manufacturers, our patented sensors work without recalibration at ±0.1mm accuracy up to 760 mpm — typical customer outcomes are 50%+ less downtime and payback under six months. Headquartered in Stillwater, Oklahoma, our team of PhDs, controls engineers, and industry veterans extends the sensor + controller core into complete web guide systems including stepper-motor-based linear actuators (RLA, BLA, LHS). - Website: https://r2r.tech - Phone: +1 (888) 290-3215 - Email: sales@r2r.tech