Grayhill Mechanical Rotary Encoders 25L Series - Manual (Page 2)

Optical and Mechanical
Encoders
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
“D” across flats.
termination: Standard is PC style, parallel to
shaft, facing rear. Options include PC, parallel
to shaft, facing front.
panel mounting torque: 10 in-lbs maximum
materials and Finishes
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
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)
orDerinG inFormation
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.
Custom materials, styles, color and markings are available. Custom knobs available.