Features ■ ■ ■ ■ Compact, requires only 22.7 mm diameter panel space No backlash For use with precision potentiometers or other rotating devices up to 15 turns Designed for use with plastic shafts H-506 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...........................................................................................................................5.0 N-cm (7.0 oz-in.) minimum Markings .............................................................................................................................................................White on black background Locking Brake............................................................................................................................................................................................Yes Weight...................................................................................................................................................................................7 grams (2.5 oz.) Set Screws ..............................................................................................................................ISO M3x 0.35, 2 screws included, 120º apart Set Screw Tightening Torque ...................................................................................................................16.94 N-cm (1.5 lbs.-in.) minimum Hex Key Size .........................................................................................................................................................Single slotted screwdriver Shaft and Bushing Requirements Shaft Diameter Requirements ........................................................................................................................................Refer to chart below Shaft Extension Beyond Panel .......................................................................................................................17.5 mm (0.6890 in.) minimum 22.5 mm (0.8858 in.) maximum Bushing Extension Beyond Panel ....................................................................................................................10 mm (0.3937 in.) maximum H-506 MOUNTING INSTRUCTIONS 1. Drill 2.0 mm (.0787 in.) diameter anti-rotation pin hole on vertic centerline, 9.5mm (.375 in.) below center of potentiometer mounting hole. 2. Mount potentiometer in panel with nut and lockwasher supplied with the potentiometer. 3. Turn potentiometer shaft counterclockwise to obtain minimum resistance or voltage ratio. This is not necessarily identical with 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. POTENTIOMETER MOUNTING WASHER AND NUT SUPPLIED WITH POTENTIOMETER POTENTIOMETER MOUNTING HOLE 2 SET SCREWS 14.8 (.582) 0 9 10 80 20 0 DIMENSIONS: 30 MM (IN.) 6 0 40 50 2.0 (.078) 70 9.5 (.374) 17.0 MAX. (.669) 22.7 (.893) 25.0 (.984) How to Order REV. 04/03 Specifications are subject to change without notice. 10.3 TYP. (.405) 2.0 (.078) Dimensional Drawings 1.5 (.059) 9.5 (.370) Part Number Accepts Shaft Diameter Finish H-506-1/4 6.35 mm (.250) Satin Chrome H-506-6M 6 mm (.236) Satin Chrome