Series 20
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Catalog excerpts

Series 20 - 1

Mechanical Encoders SERIES 20 Concentric Shafts FEATURES • Compact mechanical encoder with concentric shafts • Output Code Choices • Panel and Shaft Seal Option • Manufactured to ISO 9001 and Military Standards • Available with a fixed stop or continuous rotation • Custom Configurations Available Optical and Mechanical Encoders SPECIFICATIONS Electrical Ratings Switching Loads: 150 mA, 115 Vac 200 mA, 28 Vdc Life Expectancy: 25,000 cycles at rated loads Contact resistance: 300 mohms max. (less than 100 mohms initially) Insulation resistance: 1000 Mohms min. (10,000 Mohms initially) Dielectric Strength: 500 Vac min. mechanical ratings Stop Strength: 5 in-lbs. rotational torque: 5 in-oz outer shaft 3.5 in-oz inner shaft mounting torque: 12 in-lbs. recommended operating temperature range: -40°C to +85°C Storage temperature range: -55°C to +100°C Immersion: 15 psi (33ft) for 30 minutes pin Dimensions: .018 inch square Hardware Dimensions: Lockwasher: .437inch diameter, .022inch thick Hex Nut: 5/16-32 UNEF-2B Thread, .437 inch across flats, .094 inch thick materials and Finishes terminal pins: Phosphor bronze with tin over nickel plating panel Seal: Buna-N rubber, adhesive coated Lockwasher: Spring steel with zinc plating Hex nut: Brass with tin/zinc plating oRDERING INFoRMATIoN (potential combinations) Output Code: G = Gray B = Binary Q = Quadrature Angle of throw / max positions: 2 = 22.5° / 16 positions 0 = 30° / 12 positions Series 20: Mechanical Encoder, concentric shafts Seal: S = Sealed; A = Not Sealed Output code Angle of throw (outer shaft) Stop arrangement: AC = all positions continuous rotation; AF = all positions with fixed stop between first and last; 02 to 15: number of positions, if less than maximum termination: P = Pins; 02 to 25 = Cable Length Stop arrangement (see above) Angle of throw (inner shaft) Output code Grayhill, Inc. • 561 Hillgrove Avenue • LaGrange, Illinois 60525-5997 • USA • Phone: 708-354-1040 • Fax: 708-354-2820 • www.grayhill.co

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