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Features Applications ■ Large package size ■ Power supplies ■ For use with precision potentiometers up to ■ Sensors 20 turns *RoHS COMPLIANT ■ Medical ■ Excellent readability ■ Automation ■ Precision feel - no backlash ■ Test equipment ■ Cast housing ■ RoHS compliant* H-46 Turns-Counting Dial

Mechanical and Physical Characteristics Number of Turns ...... 0 to 20 Dial Divisions ...... 100 per turn Readability – Over 10 Turns ...... Within 1/100 of a turn Torque With Brake Engaged ...... 21.18 -cm (30.0 oz.-in.) maximum Markings ...... Black on chrome background Locking Brake ...... Yes Weight ...... 73 grams (2.5 oz.) Set Screw ...... UNC N4-44, one included Set Screw Tightening Torque ...... 16.94 N-cm (1.5 lbs.-in.) minimum Hex Key Size ...... 1.5 mm hex Shaft and Bushing Requirements Shaft Diameter Requirements ...... Refer to chart below Shaft Extension Beyond Panel ...... 17.5 mm (0.689 in.) minimum 23.5 mm (0.925 in.) maximum Bushing Extension Beyond Panel ...... 4.5 mm (0.177 in.) maximum

H-46 MOUNTING INSTRUCTIONS Using the existing Antirotation Lug Using the Antirotation Device 1. Drill 3.2 mm (0.125) diameter antirotation 1. Remove antirotation lug from dial pin hole on vertical centerline 14.3 mm by using pliers. (0.562) below center of potentiometer 2. Mount potentiometer in panel with mounting hole. antirotation device nut (supplied 2. Mount potentiometer shaft counterclock- with dial) and lockwasher (supplied wise to obtain minimum resistance or with potentiometer). voltage ratio. This is not necessarily 3. Turn potentiometer shaft counter- identical with the mechanical stop. clockwise to obtain minimum 3. Loosen set screws in knob of dial. Set dial to “0.0” reading. resistance or voltage ratio. This is 4. While holding outer of dial, position unit lightly against not necessarily identical with the panel. Tighten knob set screws to potentiometer shaft. mechanical stop. 4. Loosen set screws in knob of dial. Set dial to “0.0” reading. 5. While holding outer ring of dial, position unit lightly against panel. Tighten knob set screws to potentiometer shaft.

Dimensional Drawings How To Order

24.0 Part Accepts Shaft (.944) Number Diameter Finish 12.50 H-46-6A 6.35 mm (.250) Satin (.492) PANEL LAYOUT Chrome Satin 10.31 H-46-6M 6 mm (.236) DIA. Chrome (.405) 46.0 (1.811) MM DIMENSIONS: (INCHES)

14.30 (.562) 3.17 DIA. (.124)

REV. 01/14 *RoHS Directive 2002/95/EC Jan. 27, 2003 including annex and RoHS Recast 2011/65/EU June 8, 2011. Specifications are subject to change without notice. Users should verify actual device performance in their specific WARNING Cancer and Reproductive Harm applications. The products described herein and this document are subject to specific legal disclaimers as set forth on the www.P65Warnings.ca.gov last page of this document, and at www.bourns.com/docs/legal/disclaimer.pdf. Legal Disclaimer Notice

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