®
Model H20 Incremental Encoder
Cycles per Shaft Turn: 1 to 4096 (see
table A) For resolutions above 1024 contact
BEI for interpolation options
Supply Voltage: 5 to 28 VDC available
Current Requirements: 100 mA typical +
output load, 25O mA (max)
Mechanical
Specifications
Shaft Diameter: 1/4” thru 3/8” and metric
versions. Hollow shaft, hub shaft or thru-shaft
versions available.
Voltage/Output: (see note 5)
28V/V: Line Driver, 5–28 VDC in, V = V
28V/5: Line Driver, 5–28 VDC in, V = 5 VDC
out
28V/OC: Open Collector, 5–28 VDC in, OC
Protection Level: reverse, overvoltage and
output short circuit (see note 5)
Frequency Response: 100 KHz (up to
1024 cpt; 400 KHz with interpolation option
(see note 7)
Output Terminations:
see Table 1
Note: Consult factory for other
electrical options
Flat On Shaft: 0.75 x 0.03 deep
Shaft Loading: up to 40 lbs. axial and
40 lbs. radial
Shaft Runout: .001 T.I.R. maximum
Starting Torque at 25°C: 1.0 in-oz maxi-
mum without shaft seal; 2.5 in-oz maximum
with shaft seal; 4.0 in-oz thru-shaft
Bearings: 52100 bearing steel
out in
out
Shaft material: 303 stainless steel
Bearing Housing: Die cast aluminum with
iridite finish; stainless steel (special feature)
Cover: Die cast aluminum with protective
finish (For MS or CS terminations), otherwise
drawn aluminum with protective finish; stain-
less steel (special feature)
The H20 is an extremely rugged encoder designed to economically
fill the resolution range up to 4096 cycles per turn. This compact
unit features a shock resistant disc, heavy duty bearings, and EMI
shielding. The H20 conforms to NEMA 4 and 13 requirements. The
H20 is also available in a hub shaft style with a flexmount (inset) for
easy mounting directly to small motors. Typical applications of the
H20 include machine control, process control, agricultural machin-
ery, textile equipment, robotics, food processing, and metering.
Environmental
Specifications
9
Bearing Life: 1.5 X 10 revs at rated load
(10,000 hrs at 2500 RPM)
Maximum RPM: 8,000
(see Frequency Response)
Moment of Inertia: 2.0 x 10 oz-in-sec
Weight: 9 oz. typical
Enclosure Rating: NEMA 4 & 13 (IP66)
when ordered with shaft seal (on units with
an MS connector) and a cable gland (on
units with cable termination)
-4
2
Special Models of the H20 Incremental Encoder are available with one or
more of the following certifications. Consult factory for details.
Temperature: Operating, 0° to 70°C;
extended temperature testing available
(see note 8); Storage, -25° to 90°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
Electrical
U.S. Standards Class I, Group A,B,C &D;
Class II Group E,F & G
EN 55011
and EN 61000-6-2
Specifications
Code: Incremental
UL 12.0035X
UL 12.0082X
Canadian Standards
Class I, Zone 0, Group IIC
Output Format: 2 channels in quadrature,
1/2 cycle index gated with negative B chan-
nel as standard. Ungated index when 3904
is specified as the output device
C
NOTES & TABLES: All notes and tables
referred to in the text can be found on the
back of this page.
CENELEC
Class I, Div 2, Group A,B,C & D;
Class II, Div 2, Group F & G
II 1 G Ex ia IIB/IIC T4
II 3 G Ex nA IIB T3 Gc
II 3 G Ex nA IIB T4 Gc
H20 Incremental Ordering Options for assistance call 800-350-2727
Use this diagram, working from left to right to construct your model number (example: H20DB-37-SS-500-ABZC-28V/V-SM18).
All notes and tables referred to can be found on pages the back of this page.
H20
OꢀTPꢀT
HAzARDOꢀS
SHAFT DIA:
FACE MOꢀNT:
F5, F12, F28
Blank = None
See Dimensions
TYPE:
H = Heavy Duty
20 = 2.00” DIA.
CYCLES PER TꢀRN:
(Enter Cycles)
AREA RATINGS:
Blank = None
TERMINATION
LOCATION:
E = End
0.2497
0.2495
25 =
See table A
EX = Intrinsically Safe
NI = Non-Incendive
Contact factory for
voltage options
0.3747
0.3745
37 =
S = Side
X =
Express
Encoder
SHAFT TYPE:
NO. OF CHANNELS:
0.3935
0.3932
TS=Thru Shaft
HS=Hollow Shaft
HBS=Hub Shaft
A = Single Channel
AB = Dual Quad. Ch.
ABZ = Dual with Index
AZ = Single with Index
See note 3
VOLTAGE/OꢀTPꢀT:
28V/V = 5–28V
39 =
HOꢀSING CONFIG:
D = Square Flange
E = 2.00 Dia.
in/out
SPECIAL FEATꢀRES:
28V/5 = 5–28V 5V
in/ out
28V/OC = 5–28V /OC
PILOT CONFIG:
A=1.181
(30mm) Female
(No shaft seal available)
B =1.25
S = Special features
specified on purchase
order.(Consult factory)
See note 6
Blank = single ended
shaft (standard)
SHAFT SEAL:
SS = Shaft Seal
in out
See Dimensions
COMPLEMENTS:
C = Complementary Outputs
Blank = None
(must use pilot B, except HBS
units can take SS with pilot A)
See note 2
OꢀTPꢀT TERMINATION:
See note 4
M14 = MS3102R14S-6P
M16 = MS3102R16S-1P
M18 = MS3102R18-1P
C= Pigtail Cable
®
EXPRESS ENCODERS Items highlighted with
are standard Express Encoders and ship in one to three days.
T2 option is available as a standard H20 Express Encoder.
CS =Cable with Seal (Side or End Term)
Add cable length (i.e., C18=18” cable)
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. 02055-001 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.