H25 Incremental Optical Encoder

Tel: 805-968-0782 /800-350-2727 | Fax: 805-968-3154 / 800-960-2726

7230 Hollister Ave., Goleta, CA 93117-2807 |

www.beisensors.com

Specification No.

02002-001 Rev.08-13

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.

The H25 is the flagship of the BEI Sensors product line. It was designed from the ground

up for the industrial marketplace. The H25 offers features such as EMI shielding, 40 lb.

ABEC 7 bearings, matched thermal coefficients on critical components, and custom high-

efficiency optics. The encoder meets NEMA 4 and 13 requirements when ordered with

the shaft seal. Typical applications include machine control, process control, the wood

processing industry, oil well logging, industrial weighing, agricultural machinery, textile

equipment, web process control, robotics, and food processing.

Mechanical Specifications

Shaft Diameter: 3/8” (1/2”as special feature)

Flat On Shaft: 3/8” Shaft: 0.80 long X 0.03” deep;

1/2” Shaft: 0.80 long X 0.04” deep (1/2’’ shaft w/flat must be

ordered as special feature)

Shaft Loading: 3/8” shaft: Up to 40 pounds axial and 35

pounds radial; 1/2” shaft: Up to 90 pounds axial and 80 pounds

radial

Shaft Runout: 0.0005 T.I.R. at midpoint regardless of

shaft diameter

Starting Torque at 25°C: Without shaft seal 1.0 in-oz (max);

With shaft seal 2.5 in-oz (max); 1/2” shaft with shaft seal:

3.5 in-oz (max)

Bearings: Class ABEC 7 standard, ABEC 5 for 1/2” shaft

Shaft Material: 416 stainless steel

Bearing Housing: Die cast aluminum with protective finish;

stainless steel (special feature)

Cover: Die cast aluminum; stainless steel (special feature)

10% of rated load

Maximum RPM: 12,000 RPM nominal, 8000 RPM with

1/2” shaft (see Frequency Response, below) 30,000 RPM

available on units with 3/8” shaft—consult with factory

Weight: 13 oz typical, 14.5 oz typical with 1/2” shaft

Electrical Specifications

Code: Incremental

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

gated with negative B channel

Cycles Per Shaft Turn: 1 to 72,000 (see table 2) For resolu-

tions above 3,600 see BEI for interpolation options

Supply Voltage: 5 to 28 VDC available

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

(see note 5)

Frequency Response: 100 kHz, up to 1MHz with interpolation

option (see note 7)

Output Terminations: (See table 1, back)

Note: Consult factory for other electrical options

Environmental Specifications

Enclosure Rating: NEMA 4 & 13 (IP 66) when ordered with

shaft seal (on units with an MS connector) or a cable gland

(on units with cable termination).

Temperature: Operating, 0º to 70º C; extended temperature

testing up to 105°C available; Storage, -25º to 90º C unless

extended temperature option called out.

Shock: 50 g’s for 11 msec duration

Vibration: 5 to 2000 Hz @ 20 g’s

Humidity: 98% RH without condensation

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

can be found on the back of this page.

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

H25D-SS-2000-ABZC-28V/V-SM18).

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

EXPRESS ENCODERS: Items highlighted with

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

T2 and T5 options are available as standard H25 Express Encoders.

Special Models of the H25 Incremental Encoder are available with one or more of the

following certifications. Consult factory for details.

SPECIAL

FEATuRES:

S = Special

features specified

on purchase order

(consult factory)

See note 6

TYPE:

H = Heavy Duty

25 = 2.500” Dia.

CYCLES PER TuRN:

(Enter Cycles)

See Table 2

COMPLEMENTS

C = Complementary

Outputs

Blank = None

See note 4

OuTPuT

TERMINATION:

M12 = MS3112E12-10P

M16 = MS3102R16S-1P

M18 =MS3102R18-1P

C = Pigtail Cable

CS = Cable with seal

Cable length specified in inches

(i.e. C18 = Pigtail 18” long)

See table 1 & note 9

VOLTAgE/OuTPuT:

15V/V = 5–15 Vin/out

28V/V = 5–28Vin/out

28V/5 = 5–28Vin/5Vout

28V/OC = 5–28Vin/OCout

See note 5

OuTPuT

TERMINATION

LOCATION:

E = End

S = Side

HOuSINg CONFIg.

LETTER:

D=Square Flange

E=2.50 Dia. Servo Mount

G=2.62 Dia. Servo Mount

See dimensions

OPTIONAL

FACE MOuNTS

F1(E housing only),F2, F3,

or F4 Blank = None

See note 1

SHAFT SEAL

CONFIguRATION:

SS = Shaft Seal

(Not avail. on H25G)

Blank = Shielded Bearing

See note 2

X =

Express

Encoder

NO. OF CHANNELS:

A = Single Channel

AB = Dual Quad. Ch.

ABZ = Dual with Index

AZ = Single with Index

See note 3

H25

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 12.0082X