Mechanical Encoders
AVAiLABLe CODeS
•ꢀHexadecimal
•ꢀOctal
SerieS 26
Bꢀnaꢁy and Gꢁay Codꢂ
•ꢀBCDꢀ(Adjusted)
•ꢀQuadrative
•ꢀCustomꢀ(4-Bit,ꢀ16ꢀpositionꢀmaximum)
•ꢀRoHSꢀꢀCompliant
DiMeNSiONS In inches (and millimeters)
COMMON TERMINAL
C
OF BUSHING FLATS
.3ꢀꢀ
(7,62)
L
1/4-28 UNF-2A THREAD
C POS. ꢀ
L
.15ꢀ (3,81)
2 PLACES
.125 – .ꢀꢀ3 DIA.
( 3,18 – ꢀ,1ꢀ)
C
L
ANGLE A
1
8
2
4
C
L
.ꢀ94 (2,39)
C
.ꢀ25 – .ꢀꢀ5
(ꢀ,64 – ꢀ,13)
3 PLACES
.25ꢀ (6,35)
.2ꢀ3 .ꢀꢀ3
(5,16 ꢀ,1ꢀ)
ACROSS FLATS
.1ꢀꢀ (2,54)
2 PLACES
.18ꢀ (4,57)
.375 (9,53)
.25ꢀ (6,35)
.5ꢀꢀ .ꢀ15
(12,7 ꢀ,38) DIA.
.2ꢀꢀ (5,ꢀ8)
.332 (8,43)
Maxꢀmum Swꢀtch
Posꢀtꢀons
Anglꢂ
A
.957
(24,31)
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 .ꢀ15 ( ꢀ,38)
SPeCiFiCATiONS
CODe AND TrUTH TABLe
Method 2ꢀ1A
Shock rꢂsꢀstancꢂ: Passes medium
elꢂctꢁꢀcal ratꢀngs
ratꢂd: 25,ꢀꢀꢀ cycles with logic compatible requirement MIL-S-3785 (MIL-STD-2ꢀ2,
loads. Make and break 2ꢀꢀ mA.
BCD Output*
Gꢁay Output*
Method 213)
1
2
4
8
1
2
4
8
Contactrꢂsꢀstancꢂ:5ꢀꢀmilliohmsmaximum
(less than 1ꢀꢀ milliohms initially)
insulatꢀon rꢂsꢀstancꢂ: 1ꢀꢀꢀ megohms
minimum (1ꢀ,ꢀꢀꢀ megohms initially)
Dꢀꢂlꢂctꢁꢀc Stꢁꢂngth: 25ꢀ Vac minimum
Stop Stꢁꢂngth: 5 in-lbs minimum
Tꢂꢁmꢀnals: All switches are provided with
all 5 terminals, regardless of the number of
active positions.
1
2
3
4
5
6
7
8
9
1ꢀ
ꢀ
1
2
3
4
5
6
7
8
9
rꢂlatꢀvꢂ Humꢀdꢀty: 9ꢀ-95% at 4ꢀoC for
24ꢀ hours (MIL-STD-2ꢀ2 Method 1ꢀ3, Test
Condition A)
Matꢂꢁꢀals and Fꢀnꢀshꢂs
Panꢂl Sꢂal: Silicone Rubber
Shaft Sꢂal: Fluorosilicone
OPTiONS
Adjustablꢂ Stop Swꢀtchꢂs
Mountꢀng Nut (mountꢀng haꢁdwaꢁꢂ–onꢂ
pꢂꢁ swꢀtch): Brass, tin/zinc-plated
intꢂꢁnal Tooth Lockwashꢂꢁ (mountꢀng
haꢁdwaꢁꢂ–onꢂ pꢂꢁ swꢀtch): Steel,
tin/zinc-plated
Dꢂtꢂnt Balls: Carbon steel, nickel-plated
Dꢂtꢂnt Spꢁꢀng: Pretinned music wire
Dꢂtꢂnt rotoꢁ: Thermoplastic
Shaft, Stop Aꢁm and Stop Pꢀns: Stainless
steel
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.
11 1ꢀ
12 11
13 12
14 13
15 14
16 15
Shaft and Panꢂl Sꢂal
All switches are provided with a shaft and
panel seal.
Bushꢀng: Zamak II tin/zinc alloy, zinc-
plated
Swꢀtch Basꢂ: Diallyl phthalate
Pꢁꢀntꢂd Cꢀꢁcuꢀt Boaꢁd: NEMA Grade FR-4.
*Dot indicates terminal tied to common.
Gꢁay Codꢂ Output–Adjustablꢂ Stop
Tꢂꢁmꢀnals: Brass, gold-plated over nickel OrDeriNG iNFOrMATiON
plate
Numbꢂꢁ of
Posꢀtꢀons
Paꢁt
Numbꢂꢁ
BCD Output–Adjustablꢂ Stop
Contacts: Copper alloy, gold-plated over
nickel plate
Numbꢂꢁ of
Posꢀtꢀons
Paꢁt
Numbꢂꢁ
16 Positions
8 Positions
26GSD22-ꢀ1-1-AJS
26GSD45-ꢀ1-1-AJS
Addꢀtꢀonal Chaꢁactꢂꢁꢀstꢀcs
rotatꢀonal Toꢁquꢂ: 4 to 8 oz-in on a new
switch.
Vꢀbꢁatꢀon rꢂsꢀstancꢂ: 1ꢀ to 55 Hz at
ꢀ.ꢀ6ꢀ" double amplitude; no damage and
no contact openings per MIL-STD-2ꢀ2,
8 Positions
16 Positions
26ASD45-ꢀ1-1-AJS
26ASD22-ꢀ1-1-AJS
Custom switches with options such as 1/4" shaft
diameter, longer shaft or terminals available by
contacting Grayhill sales. Custom encoders
with options such as: custom code output, 1/4"
shaft diameter, and longer shaft and terminal
lengths are avalable by contacting the Grayhill
sales office.
Avaꢀlablꢂ fꢁom youꢁ local Gꢁayhꢀll Dꢀstꢁꢀbu-
toꢁ. For prices and discounts, contact a local
Sales Office, an authorized local Distributor or
Grayhill.
Encoder
Grayhill,ꢀ Inc.ꢀ •ꢀ 561ꢀ Hillgroveꢀ Avenueꢀ •ꢀ LaGrange,ꢀ Illinoisꢀ ꢀ 60525-5997ꢀ •ꢀ USAꢀ •ꢀ Phone:ꢀ 708-354-1040ꢀ •ꢀ Fax:ꢀ 708-354-2820ꢀ •ꢀ www.grayhill.com
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