Features Applications Large package size Power supplies For use with precision potentiometers up to Sensors 20 turns 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 N-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 Antirotation Device Using the existing Antirotation Lug 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. 2. Mount potentiometer in panel with (0.562) below center of potentiometer mounting hole. antirotation device nut (supplied with dial) and lockwasher (supplied 2. Mount potentiometer shaft counterclock- wise to obtain minimum resistance or with potentiometer). voltage ratio. This is not necessarily 3. Turn potentiometer shaft counter- clockwise to obtain minimum identical with the mechanical stop. 3. Loosen set screws in knob of dial. Set dial to 0.0 reading. resistance or voltage ratio. This is not necessarily identical with the 4. While holding outer ring of dial, position unit lightly against 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 Satin H-46-6A 6.35 mm (.250) (.492) PANEL LAYOUT Chrome Satin H-46-6M 6 mm (.236) 10.31 Chrome DIA. (.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. Specications are subject to change without notice. Users should verify actual device performance in their specic WARNING Cancer and Reproductive Harm applications. The products described herein and this document are subject to specic 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. *RoHS COMPLIANT Legal Disclaimer Notice This legal disclaimer applies to purchasers and users of Bourns products manufactured by or on behalf of Bourns, Inc. and )V Y UZ P Z HSPH LZ JVSSLJ P LS Unless otherwise expressly indicated in writing, Bourns products and data sheets relating thereto are subject to change P OV UV PJL <ZLYZ ZOV SK JOLJR MVY HUK VI HPU OL SH LZ Y LU LSL HU PUMVYTH PVU HUK LYPM OH Z JO PUMVYTH PVU PZ J YY and complete before placing orders for Bourns products. The characteristics and parameters of a Bourns product set forth in its data sheet are based on laboratory conditions, and statements regarding the suitability of products for certain types of applications are based on Bourns knowledge of typical requirements in generic applications. 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