BEI Sensors H38 Incremental Explosion-Proof Encoder - Manual

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. 02051-001 Rev. 10-13
H38 Incremental Optical Encoder
HOUSING
CONFIGURATION:
D = Standard,
(see dimensions, back page)
The H38 is an explosion
proof version of the field-
proven H25 encoder series.
The H38 is UL certified
for NEMA Class 4X
and 6 (outdoor non-
hazardous locations)
and Class 4X and 13
(indoor non-hazardous
locations). It is available with
Class 1, Group D, Division 1 or Class
2, Division 1 Group E, F, and G rating for use
in hazardous locations. It features a standard shaft seal, double bearing seals, and
a cast aluminum housing with hard anodized and dichromate sealed finish. The H38
is suitable for use in petroleum service industries, solvent refining operations, spray
painting applications, and explosive dust environments.
Mechanical
Specifications
Shaft Diameter: 3/8” nominal
Shaft Loading: Up to 40 pounds
axial and 20 pounds radial applied
1/4” from housing
Shaft Runout: 0.0005 T.I.R.
Starting Torque at 25° C:
4.0 in-oz (max)
Bearings: Class ABEC 7 standard
Shaft Material: 303 stainless steel
Enclosure: Die cast aluminum, hard
anodized with dichromate sealed finish.
Shaft seals and sealed bearings are stan-
dard to achieve environmental ratings.
Bearing Life: 2 X 10
8 revs (1300 hrs at
2500 RPM) at rated load; 1 X 10 10 revs
(67,000 hrs at 2500 RPM) at 10% of
rated load
Maximum RPM: 10,000 RPM
(see Frequency Response, below)
Moment of Inertia:
4.1 X 10
–4 oz-in-sec 2
Weight: 64 oz typical (approx 4 lbs)
Electrical
Specifications
Code: Incremental or Absolute
Output Format: 2 channels in quadra-
ture, 1/2 cycle index gated with negative
B channel, or Absolute to 13 bits
Cycles per Shaft Turn: 1 to 72,000
(see table 2, back page). For resolutions
above 3,600 see interpolation options
in the 2008 BEI Spec Guide on pages
36 and 37); Absolute to 8192 counts
per turn
Supply Voltage: 5 to 28 VDC available
Current Requirements: 100 mA typical
+output load, 250 mA (max)
Voltage/Output: (see note 3)
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 3)
Frequency Response: 100 KHz, Up to
1MHz with interpolation option (see note 5)
Output Terminations: see Table 1,
back page
Termination Type: Compression type,
UL recognized. Accepts AWG 14 to 22,
stranded wire, strip 1/4”
Note: Consult factory for other
electrical options
Environmental
Specifications
Enclosure Rating: NEMA 4X & 6
(IP66), outdoor Non-Hazardous
locations, NEMA 4X & 13 (IP66),
indoor Non-Hazardous locations
Temperature: Operating, 0º to 70º C;
extended temperature testing available
(see note 6, back page); 80º C max for
UL and CEN approved units; storage;
-25º to 90º C.
Shock: 50 g’s at 11 msec
Vibration: 5 to 2000 Hz @ 20 g’s
Humidity: 100% RH
C
The H
38
Incremental Encoder is avail able with the following certifications:
EN 55011 and EN 61000-6-2
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 EEX ia IIC T4
H38
TYPE:
H = Heavy Duty
38 = 3.75” Square
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 3
CYCLES PER TURN:
Enter Cycles,
See Table 2
CERTIFICATION:
UL = Class I Group D Environments
CEN = UL Class I & II, Cenelec
IIB Environments
MSHA = Mine Safety and Health
Administration Certified
OUTPUT TERMINATION:
SC = Side Conduit, 1/2–14 NPSF
(dryseal) straight pipe threads
SPECIAL
FEATURES:
S = Special
features specified
on purchase order
(consult factory)
See note 4
COMPLEMENTS:
C = Complementary Outputs,
Blank = None
See note 2
NO. OF CHANNELS:
A = Single Channel
AB = Dual Quad. Ch.
ABZ = Dual with Index
AZ = Single with Index
See note 1
H38 Explosion Proof Ordering Options
For AssisTAnCe CAll 800-350-2727
Use this diagram, working from left to right to construct your model number (example: H38D-2000-ABZC-28V/V-SC-CEN).
All notes and tables referred to can be found on the back of this page.
Hazardous Area Rating: Underwriters
Laboratories listed for use in hazardous
locations; Class
I, Group C & D, Class II,
Groups E, F & G. NEC Class 2 circuits
only.
(All notes and tables referred to in the text can be
found on the back page.)
The Mine Safety and Health Administration (MSHA) is an organization
that operates in the United States and enforces compliance with safety
and health standards in the Nation’s mines. Consult factory for MSHA rated product.