SERIES 26 Binary and Gray Code
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SERIES 26 Binary and Gray Code - 1

Mechanical Encoders SERIES 26 Binary and Gray Code AVAILABLE CODES • Hexadecimal • Octal • BCD (Adjusted) • Quadrative • Custom (4-Bit, 16 position maximum) • RoHS Compliant DIMENSIONS in inches (and millimeters) Optical and Mechanical Encoders Maximum Switch Positions Unless specified otherwise, all tolerances are ± .015 ( 0,38) Grayhill part number and date code marked on label. Customer part number marked on request. SPECIFICATIONS Electrical Ratings Rated: 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 hardware-one per switch): Brass, tin/zinc-plated Internal Tooth Lockwasher (mounting hardware): 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 Relative Humidity: 90-95% at 40oC for 240 hours (MIL-STD-202 Method 103, Test Condition A) Thermal Cycling: per MIL-STD-202, Method 107, Test Condition A, with an exception of -65°C as the low temperature Shaft and Panel Seal All switches are provided with a shaft and panel seal. 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. Custom encoders with options such as custom code output, 1/4” shaft diameter, factory set stops and longer shaft terminal lengths are CODE AND TRUTH TABLE Switch Position *Dot indicates terminal tied to common. Additional Characteristics Rotational Torque: 4 to 8 oz-in initial Vibration Resistance: 10 to 55 Hz at 0.060" double amplitude; no damage and no contact openings per MIL-STD-202, Method 201A Shock Resistance: Passes medium requirement MIL-DTL-3786 (MIL-STD-202, Method 213) Stop Strength: 5 in-lbs minimum Series Code- Output Code:- Stops: D = Adujustable, Blank = Continuous or Fixed 26GSD22-01 -16S-C C = Continuous, - F = Fixed, Blank = Adjustable Positions: 08S, 16S, or AJS for adjustable Poles: 1 Grayhill, Inc. • 561 Hillgrove Avenue • LaGrange, Illinois 60525-5997 • USA •

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