H-23_07

PL IA Features ■ ■ ■ ■ NT No backlash Compact - requires minimal panel space (22.2 mm diameter requirement) For use with precision potentiometers or other rotating devices, up to 15 turns Designed for metal shaft S CO ■ ■ ■ High Force “Click Brake” Black on polished chrome background RoHS compliant* *R oH M H-23 Turns-Counting Dial Mechanical and Physical Characteristics Number of Turns ..................................................................................................................................................................................0 to 15 Dial Divisions .................................................................................................................................................................................50 per turn Readability - Over 10 Turns.....................................................................................................................................................2 parts in 1000 Torque With Brake Engaged ........................................................................................................................6.95 oz-in. (500 g-cm) minimum Markings ...........................................................................................................................................Black on polished chrome background Locking Brake............................................................................................................................................................................................Yes Weight...............................................................................................................................................................................15 grams (0.53 oz.) Set Screw ..............................................................................................................................................................UNC N2-56, one included Set Screw Tightening Torque ...................................................................................................................16.94 N-cm (1.5 lbs.-in.) minimum Hex Key Size ................................................................................................................................................................................0.05 in. hex Shaft and Bushing Requirements Shaft Diameter Requirements ........................................................................................................................................Refer to chart below Shaft Extension Beyond Panel .........................................................................................................................18.1 mm (0.712 in.) minimum 22.2 mm (0.875 in.) maximum Bushing Extension Beyond Panel ...................................................................................................................9.53 mm (0.375 in.) maximum H-23 MOUNTING INSTRUCTIONS 1. Insert potentiometer in panel. 2. Install anti-rotation device using hardware supplied with potentiometer. 3. Turn potentiometer shaft counterclockwise to minimum resistance or voltage ratio. 4. Set the dial to “0.0” and brake on. 5. Insert the dial on the potentiometer shaft lightly against the panel. 6. Tighten set screw to potentiometer shaft. POTENTIOMETER HARDWARE KEY SLOT SUPPLIED WITH (INSIDE) POTENTIOMETER KEYED TO ANTIROTATION DEVICE POTENTIOMETER MOUNTING HOLE 9.52 (.374) 10.36 TYP. (.407) OUTER RING SET SCREW DIMENSIONS: MM (IN.) PANEL ANTIROTATION DEVICE TURNS-COUNTING DIAL 1.98 (.077) PANEL HOLE PATTERN How To Order Part Number H-23-6A 16.5 (.649) 22.2 (.874) Accepts Shaft Diameter 6.35 mm (.250) 6 mm (.236) 3.17 mm (.124) Finish Polished chrome Polished chrome Polished chrome H-23-6M H-23-3A 3.30 (.129) 9.53 (.375) 18.1 MIN. (.712) 22.2 MAX. (.874) REV. 04/07 *RoHS Directive 2002/95/EC Jan 27 2003 including Annex. Specifications are subject to change without notice. Customers should verify actual device performance in their specific applications.