Mechanical Encoders
AVAILABLE CODES
• Hexadecimal
• Octal
SERIES 26
Binary and Gray Code
• BCD (Adjusted)
• Quadrative
• Custom (4-Bit, 16 position maximum)
• RoHS Compliant
DIMENSIONS in inches (and millimeters)
OF BUSHDNG FLATS
C
COMMON TERMINAL
1/4-28 UNF-2A THREAD
L
C POS. 0
L
.300
.125 .00ꢀ DꢁA.
(Ø ꢀ,18 0,103
(7,62)
.150 (3,81)
2 PLACES
C
L
ANGLE A
.025 .005
(0,64 0,1ꢀ3
ꢀ PLACES
.094 (2,39)
1
8
2
4
C
L
C
.250 (6,ꢀ53
.203 .003
.180 (4,573
(5,16 0,10)
.ꢀ75 (9,5ꢀ3
.250 (6,ꢀ53
.100 (2,54)
2 PLACES
ACROSS FLATS
.ꢀꢀ2 (8,4ꢀ3
.500 .015
(12,7 0,3ꢀ) ꢁDA.
.200 (5,08)
Maximum Switch
Positions
Angle
A
.957
(24,ꢀ13
REF.
Grayhill part number and date
code marked on label. Customer
part number marked on request.
8
16
67.5°
33.75°
Unless specified otherwise, all tolerances are ± .015 ( 0,38)
SPECIFICATIONS
Electrical Ratings
Rated: 25,000 cycles with logic compatible
loads. Make and break 200 mA.
ContactResistance:500milliohmsmaximum
(less than 100 milliohms initially)
Insulation Resistance: 1000 megohms
minimum (10,000 megohms initially)
Dielectric Strength: 250 Vac minimum
CODE AND TRUTH TABLE
240 hours (MIL-STD-202 Method 103, Test
Condition A)
BCD Output*
Gray Output*
Shaft and Panel Seal
All switches are provided with a shaft and
panel seal.
1
2
4
8
1
2
4
8
1
2
3
4
5
6
7
8
9
10
0
1
2
3
4
5
6
7
8
9
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.
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,StopArmandStopPins:Stainlesssteel
Bushing: Zamak II tin/zinc alloy, zinc-plated
Switch Base: Diallyl phthalate
Printed Circuit Board: NEMA Grade FR-4.
Terminals:Brass, gold-platedovernickelplate
Contacts: Copper alloy, gold-plated over
nickel plate
Custom encoders with options such as custom
code output, 1/4” shaft diameter, factory set
stops and longer shaft terminal lengths are
available by contacting the Grayhill sales
office at 708.482.2123.
11 10
12 11
13 12
14 13
15 14
16 15
ORDERING INFORMATION
Available from your local Grayhill Distributor.
For prices and discounts, contact a local Sales
Office, or an authorized local Distributor or
Grayhill through grayhill.com/where-to-buy.
*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)
2 6 G S D 2 2 - 0 1 - 1 - 1 6 S - C
Series Code
Output Code:
C = Continuous,
F = Fixed,
Blank = Adjustable
G = Gray, A = BCD
Sealed
Positions:
Stops:
08S, 16S, or AJS for adjustable
D = Adujustable,
Blank = Continuous or Fixed
Poles: 1
Stop Strength: 5 in-lbs minimum
Decks: 1
Relative Humidity: 90-95% at 40oC for
Angle of Throw:
22 = 22.5º, 45 = 45º
Grayhill, Inc. • 561 Hillgrove Avenue • LaGrange, Illinois 60525-5997 • USA • Phone: 708-354-1040 • Fax: 708-354-2820 • www.grayhill.com
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