Specification No. 02065-001  Rev.5-16

These commodities, technology or software if exported from the United States must be in accordance with the Bureau of Industry, and Security, Export Administration regulations. Diversion contrary to U.S law is prohibited.

HS25 Incremental Optical Encoder

The HS25 combines the

rugged, heavy-duty features

usually associated with

shafted encoders into a

hollow-shaft style. Its design

includes dual bearings and

shaft seals for NEMA 4, 13

and IP65 environmental

ratings, a rugged metal

housing, and a cable gland.

This low-profile design,

just 2” deep, is easily mounted on a through shaft. Securing the encoder to the shaft

is simple with a collet-style single screw clamp. The optional anti-rotation tether block

maintains housing stability during operation. The HS25 is designed to accommodate

shafts up to 3/4” in diameter. With optional insulating inserts, it can be mounted on

smaller diameter shafts. Applications include motor feedback and vector control, paper

converting and printing industries, robotic control, web process control along with many

other applications.

Mechanical Specifications

Shaft Bore: 0.375”, 0.750”, 0.625”, 0.500”, dia. 0.625” and under are

supplied with insulating sleeves.

Allowable Misalignment: 0.005: T.I.R. on mating shaft 0.75” from shaft end

Bore Runout: 0.001” T.I.R.

Starting Torque at 25° C: Through shaft version (SS) = 7 in-oz (max);

Blind shaft version (BS) = 4 in-oz (max)

Bearings: 52100 SAE high carbon steel

Shaft Material: 6061-T6 aluminum alloy

Bearing Housing: Die cast aluminum with protective finish

Cover: Die cast aluminum with protective finish

Maximum RPM: 6,000 RPM (see Frequency Response, below)

Weight: 9 oz typical

Electrical Specifications

Code: Incremental

Output Format: 2 channels in quadrature, 1/2 cycle index gated

with negative B channel

Cycles per Shaft Turn: up to 2048 (see table A, this page)

Supply Voltage: 5 to 28 VDC available (see note 5)

Current Requirements: 100 mA typical + output load, 250 mA (max)

Voltage/Output: (see note 5)

15V/V: Line Driver, 5–15 VDC in, Vout = Vin

28V/V: Line Driver, 5–28 VDC in, Vout = Vin

28V/5: Line Driver, 5–28 VDC in, Vout = 5 VDC

28V/OC: Open Collector, 5–28 VDC in, OCout

Protection Level: Reverse, overvoltage and output short circuit

Frequency Response: 100 kHz (see note 7)

Output Terminations: (see table 1, back page)

Note: Consult factory for other electrical options

Environmental Specifications

Enclosure rating: NEMA 4 & 13 (IP65) when ordered with shaft seal

and a cable gland.

Temperature: Operating, 0º to 70ºC; extended temperature testing up to

85ºC available (see note 8); Storage, -25º to 90º C unless extended tem-

perature option called out

Shock: 50 g’s for 11 msec duration

Vibration: 5 to 2000 Hz @ 20 g’s

Humidity: 98% RH non-condensing

NOTES & TABLES: All notes and tables referred to in the text can be found

on the back of this page.

Special Models of the HS25 Incremental Encoder are available with one or more of the fol-

lowing certifications. Consult factory for details.

TYPE:

HS = Hollow Shaft

25 = 2.5” Encoder

Diameter

CYCLES PER

TURN:

(Enter Cycles)

See table A

SHAFT BORE:

75 = 0.750”

62 = 0.625”

50 = 0.50”

37 = 0.375”

COMPLEMENTS:

C = Complementary

Outputs

See note 4

OUTPUT TERMINATION:

SM12 = MS3112E12-10P

SCS = Shielded, Jacketed Cable with Cable

gland seal and cable length in inches,

(i.e. SCS18 = 18 inches)

SCS18-M18 = SM18 connector on end of cable

with length specified in inches

(i.e. SCS18-M18)

M18 = MS3101F18-1P

See table 1 and note 9

HOUSING CONFIG:

F = Standard

NO. OF CHANNELS:

A = Single Channel

AB = Dual Quad. Ch.

ABZ = Dual with Index

AZ = Single with Index

See note 3

SPECIAL

FEATURES:

S = Special

features specified

on purchase order

(consult factory)

See note 6

SHAFT SEAL

CONFIGURATION:

SS = Through Shaft Rubber Seals

BS = Blind Shaft Rubber Seal

FS = Through Shaft Felt Seals

BFS = Blind Shaft Felt Seal

See note 2

TETHER:

Blank = None

R1 = Tether Block

and Pin

R2 = Tether Arm

HS25

Use this diagram, working from left to right to construct your model number (example:

HS25F-62-R1-SS-1024-ABZC-28V/V-SCS18).

All notes and tables referred to can be found on the back of this page.

VOLTAGE/OUTPUT:

28V/V = 5–28Vin/out

28V/5 = 5–28Vin/5Vout

28V/OC = 5–28Vin/OCout

See note 5

X =

Express

Encoder

are standard Express Encoders and ship in one to three days.

HAZARDOUS

AREA RATINGS:

Blank = None

EX = Intrinsically Safe

NI = Non-Incendive

Contact factory for

voltage options

C

Canadian Standards

Class I, Zone 0, Group IIC

U.S. Standards Class I, Group A,B,C & D;

Class II Group E,F & G

CENELEC

II 1 G Ex ia IIB/IIC T4

II 3 G Ex nA IIB T4 Gc

EN 55011

and EN 61000-6-2

Class I, Div 2, Group A,B,C & D;

Class II, Div 2, Group F & G

UL 12.0035X

UL 13.0071X