series 26 binary and gray code dimensions in inches (and millimeters) maximum switch angle positions a 8 67.5 16 33.75 unless specifed otherwise, all tolerances are .015 ( 0,38) specifi cations electrical ratings r ated: 25,000 cycles with logic compatible loads. make and break 200 ma. contact resistance: 500 milliohms maximum (less than 100 milliohms initially) insulation resistance: 1000 megohms minimum (10,000 megohms initially) dielectric strength: 250 vac minimum materials and finishes panel seal: silicone rubber shaft seal: fluorosilicone mounting nut (mounting hardwareCone per switch): brass, tin/zinc-plated i nternal tooth lockwasher (mounting hardwareCone per switch): steel, tin/zinc-plated detent balls: carbon steel, nickel-plated detent spring: pretinned music wire detent rotor: thermoplastic shaft, stop arm and stop pins: stainless steel bushing: zamak ii tin/zinc alloy, zinc- plated switch base : diallyl phthalate printed circuit board: nema grade fr-4. terminals: brass, gold-plated over nickel plate contacts : copper alloy, gold-plated over nickel plate additional characteristics rotational torque: 4 to 8 oz-in on a new switch. vibration r esistance: 10 to 55 hz at 0.060" double amplitude; no damage and no contact openings per mil-std-202, grayhill part number and date code marked on label. customer part number marked on request. c l c l angle a .094 (2,39) .203 .003 (5,16 0,10) across flats .500 .015 (12,7 0,38) dia. pos. 0 of bushing flats 1/4-28 unf-2a thread .025 C .005 (0,64 C 0,13) 3 places .180 (4,57) .332 (8,43) .957 (24,31) ref. .250 (6,35) .375 (9,53) .250 (6,35) .125 C .003 dia. ( 3,18 C 0,10) c 12 84 c l c l common terminal .300 (7,62) .150 (3,81) 2 places .100 (2,54) 2 places .200 (5,08) method 201a shock r esistance: passes medium requirement mil-s-3785 (mil-std-202, method 213) stop strength: 5 in-lbs minimum terminals: all switches are provided with all 5 terminals, regardless of the number of active positions. r elative humidity: 90-95% at 40 o c for 240 hours (mil-std-202 method 103, test condition a) options adjustable stop switches the switch may have continuous rotation, or be adjusted to limit the rotation. the panel seal ring can be removed to expose the stop pin holes on the front of the switch. two stop pins and panel seal o-ring are supplied with the switch. one or both may be used to limit the rotation as desired. shaft and panel seal all switches are provided with a shaft and panel seal. number of part positions number 16 positions 26gsd22-01-1-ajs 8 positions 26GSD45-01-1-AJS custom switches with options such as 1/4" shaft diameter, longer shaft or terminals available by contacting grayhill sales. custom encoders with options such as: custom code output, 1/4" shaft diameter, and longer shaft and terminal lengths are avalable by contacting the grayhill sales offce. gray code outputCadjustable stop ordering infor mation code position code and tr uth tabl e bcd output* gray output* 1 2 4 8 1 2 4 8 1 0 2 1 3 2 4 3 5 4 6 5 7 6 8 7 9 8 10 9 11 10 12 11 13 12 14 13 15 14 16 15 *dot indicates terminal tied to common. switch position available from your local grayhill distribu - tor. for prices and discounts, contact a local sales offce, an authorized local distributor or grayhill. ava ilable codes ? hexadecimal ? octal ? bcd (adjusted) ? quadrative ? custom (4-bit, 16 position maximum) ? rohs compliant number of part positions number 8 positions 26asd45-01-1-ajs 16 positions 26asd22-01-1-ajs bcd outputCadjustable stop encoder 6 grayhill, inc. ? 561 hillgrove avenue ? lagrange, illinois 60525-5997 ? usa ? phone: 708-354-1040 ? fax: 708-354-2820 ? www.grayhill.com optical and mechanical encoders mechanical encoders
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