Mechanical Encoders SerieS 25L Hex, Gray and Quadrature Code FeatureS • Price Competitive to Similar Designs • Quality Construction and Contact Materials • Multiple Code and Indexing Choices • 100,000 Life Cycles • Less than 1.0" Square • Manufactured to ISO 9001 Standards DimenSionS in inches (and millimeters) .925 ± .010 Ø .470 ± .010 (23.8,5605 ±± 0.0,2155) .(384,731 ± ± . 002,654) .(265,305 ± ± . 001,358) NONT-ATBURN CL .(31210,9 ±4 .±0 100,25) (21,97 ± 0,38) .045 ± .005 (8,13 ± 0,25) (1,14 ± 0,13) 3T/H8R-3E2A UDNEF-2A .400 ± .015 .025 ± .002 .250 + .001 –.002 (10,16 ± 0,38) (0,64 ± 0,05) (6,35 + 0,03 –0,05) SQUARE PIN DIA. .865 ± (3 PLACES) O (12.050.0,,22910510 ) ±± (201.0,,391875) ± (.1 C5L20,07 ±± .00,1205) .250 ± .015 .219 ± .004 CBFLLUASTHSING p (6,35 ± 0,38) (5,56 ± 0,10) tic CL .500 ± .015 Encodersal and Mechan .(51940,9 ±7 .±0 100,25) .(265,305 ± ± . M001,BO20R5U)ANCTKINEGT LMOOCUKNØBN TYOT .A1 IN.N20B-G06T ( 8 U2±B )± R. R0F .NA00O 50CTR 5K(A 3(EB(,110T,257 2, 37±5 ± ±J0 5 ,0011,,3153)358 )W) TIHDIECK .(T12Y0,5P04 .± ± . 000,153 ) CLSFLHAATFT 90˚ ic a l trutH tabLeS Clockwise rotation Clockwise rotation Clockwise rotation 4-Bit Gray Code-16 Position 4-Bit Binary Code Hexadecimal-16 Position Q1u/4a dCraytculere p 2e-rB Dite Cteondte pSowsiittciohn poCsoidtieon 1 2output4 8 pSowsiittciohn poCsoidtieon 1 2output4 8 pSowsiittciohn "a"output"b" 1 0 1 0 1 2 1 2 1 2 3 2 3 2 3 4 3 4 3 4 5 4 5 4 5 6 5 6 5 6 7 6 7 6 7 8 7 8 7 8 9 8 9 8 9 10 9 10 9 10 11 10 11 10 11 12 11 12 11 12 13 12 13 12 13 14 13 14 13 14 15 14 15 14 15 16 15 16 15 16 Indicates closed circuit; blank indicates Indicates closed circuit; blank indicates 17 18 open circuit. open circuit. 19 20 21 22 23 Quadrature 2-bit Code 24 Output Table for CW Rotation 25 26 27 28 29 OUTPUT HIGH 30 31 A LOW 32 33 HIGH 34 OUTPUT 35 B LOW 36 Indicates closed circuit; 1 2 3 4 5 6 blank indicates open POSITION NUMBER circuit. Code repeats every 4 positions. Grayhill, Inc. • 561 Hillgrove Avenue • LaGrange, Illinois 60525-5997 • USA • Phone: 708-354-1040 • Fax: 708-354-2820 • www.grayhill.com

Mechanical Encoders SpeCiFiCationS electrical ratings Switching Loads: 1.5 mA at 115 Vac, resistive; 150 mA at 14 Vdc, resistive Current Carrying Capacity: 250 mA maximum at 28 Vdc, resistive load Contact resistance: 75 mΩ, typical insulation resistance: 1000 mΩ minimum between terminals Voltage breakdown: 1000 Vac minimum between terminals Life expectancy: 100,000 cycles of operation at rated loads. One cycle of operation is a rotation through all of the active positions and a return to the starting position. mechanical ratings rotational torque: 2 to 6 in-oz operating temperature range: -40 C° to +85 C° Storage temperature range: -65 C° to +85 C° Continuous rotation: All standard switches are continuous rotation. Desired stop locations supplied upon request. anti-rotation Device: Integral non-turn tab, flatted bushing, .375" diameter, .320 double O p “D” across flats. tic tstohe arsmfht,ai nfftaa, ctfiainocgnin :rg eS aftrrao. nnOdt.patrido niss PinCcl usdtyele P, Cp,a rpaallreall lteol Encodal and M panel mounting torque: 10 in-lbs maximum ersec h a n ic a materials and Finishes l bushing/Housing and Shaft/rotor: Reinforced thermoplastic Detent ball: Stainless steel, nickel-plated Detent Spring: Tinned music wire Contacts: Beryllium copper, gold plate over nickel terminals: Copper alloy, #725, 100% tin plate over nickel plate output board: FR-4, copper/nickel-plated mounting nut: Brass, tin/zinc-plated hex nut mounting bracket: Stainless Steel, tin-plated orDerinG inFormation Series: 25L = Economical, single deck encoder Housing Color: B = Black housing; R = Red housing angle of throw: 10 = 10°, 36 positions; 11 = 11.25°, 32 positions; 15 = 15°, 24 positions; 18 = 18°, 20 positions; 22 = 22.5°, 16 positions; 30 = 30°, 12 positions; 45 = 45°, 8 positions 25Lb10-Q-Z mounting bracket: Z = with bracket, Blank = no bracket Code output: H = Hexadecimal available only in 22.5° G = Gray available only in 22.5° Q = Quadrature (2-bit) Custom materials, styles, color and markings are available. Custom knobs available. available from your local Grayhill Distributor. For prices and discounts, contact a local Sales Office, an authorized Distributor or Grayhill. For Custom codes. termination, torque, angles of throw, call Grayhill for more information. Grayhill, Inc. • 561 Hillgrove Avenue • LaGrange, Illinois 60525-5997 • USA • Phone: 708-354-1040 • Fax: 708-354-2820 • www.grayhill.com