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L25G-F3-SB-2000-ABZC Datasheet, PDF (1/3 Pages) List of Unclassifed Manufacturers – L25 Incremental Optical Encoder
L25 Incremental Optical Encoder
The L25 is a lighter duty version of BEI’s H25 optical encoder.
Incorporating the same high quality optics and electronics as the H25,
the L25 also offers low starting torque. Other features include ABEC
5 bearings, EMI shielding, a 1/4” diameter stainless steel shaft and
a drawn aluminum cover. Typical applications include use with light
machine tools, test and laboratory ­instrumentation, the biomedical
industry and flow metering.
Mechanical Specifications
Shaft Diameter: 1/4” nominal
Flat On Shaft: 0.80 long x 0.03 deep
Shaft Loading: up to 5 lbs. axial and 8 lbs. radial
Shaft Runout: .0005 T.I.R. maximum
Starting Torque at 25°C: 0.07 in-oz typical, 0.12 in-oz maximum without sealed
bearings; 0.50 in-oz typical, 1.0 in-oz maximum with sealed bearings
Bearings: Class ABEC 5
Shaft material: 416 stainless steel
Bearing Housing: Die cast aluminum with iridite finish
Cover: Drawn aluminum, 0.060” wall, protective finish standard. Die cast aluminum
with protective finish for EM, SM, ECS and SCS terminations
Bearing Life: 1 X 109 revs (6,700 hrs at 2500 RPM)
Maximum RPM: 10,000
Moment of Inertia: 4.1 x 10-4 oz-in-sec2
Weight: 13 oz. typical
Electrical Specifications
Code: Incremental
Cycles Per Shaft Turn: 1 to 28,800
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/5V: Line Driver, 5–28 VDC in, Vout = 5 VDC
28V/OC: Open collector, 5–28 VDC in, OCout
Current Requirements: TTL: 175 mA maximum 125 mA typical
Output Format: 2 channels in quadrature = 27º electrical typical. Optional index
is typically gated 1/2 cycle wide (see figure 1)
Protection Level: Reverse, overvoltage and output short circuit (4469, 7272 only)
Frequency Response: 100 kHz (see note 7), up to 800 KHz with interpolation option
Output Terminations: (see table 1)
Environmental Specifications
Enclosure Rating: NEMA 2 (IP43)
Temperature: Operating, 0º to 70º C; extended t­emperature testing available
(see note 8); storage; -25º to 90º C
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.
Model L25 Ordering Options for assistance call 800-350-2727
Use this diagram, working from left to right to construct your model number (Example: L25G-F3-SB-2000-ABZC-28V/V-SC18).
L25 G
TYPE:
Optional Face
Cycles Per Turn:
Complements
Output
SPECIal
L = Heavy Duty
25 = 2.500” Dia.
Mounts
F1, F2, F3, or F4
Blank = None
(Enter Cycles)
See table 2
C = Complementary
Outputs
Blank = None
See note 4
Termination
Location:
E = End
S = Side
Output
Termination:
M16 =
MS3102R16S-1P
features:
S= Special
features specified
on purchase order
(consult factory)
HOUSING CONFIG. LETTER: SHAFT Seal Configuration:
G=2.62 Dia. Servo Mount
SB = Seal Integral
See dimensions
with Bearing
No. of Channels:
A = Single Channel
AB = Dual Quad. Ch.
Voltage/output:
15V/V = 5-15 Vin/out 28V/V
= 5-28Vin/out
D15 = DA15P
C = Pigtail Cable
CS = Cable with Seal
Cable length
See table 6
Blank = Shielded Bearing
ABZ = Dual with Index
28V/5 = 5-28Vin/5Vout
specified in inches
AZ = Single with Index 28V/OC = 5-28Vin/OCout
(i.e. C18 = Pigtail
See note 3
See note 5
18” long)
See table 1 & note 9
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. 02004-001 Rev.08-11
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.