BEI Sensors HS52 User Manual

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Model HS52 Explosion Proof
Hollow Shaft Incremental Encoder

BEI Sensors

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Picturedwithhardanodizedfinishspecialfeature

Mechanical Specifications

Allowable Misalignment: SP11 Flex Shaft is designed
to accommodate up to 0.04” T.I.R radial and ±0.02 axial;

Consult factory for other shaft options

Starting Torque at 25°C: Blind shaft version (BS) = 10
in-oz (max)

Bearings: 52100 high carbon steel.
Shaft Material: 416 stainless steel
Bearing Housing: Die cast and machined aluminum

with dichromate finish standard. Hard anodized finish
available.

Cover: Die cast and machined aluminum.
Bearing Life: 7.5 X 10
Maximum RPM: 6,000 MAX. (Temp. Derated 5ºC/1,000

RPM above 2,000 RPM for continuous operation)
Moment of Inertia:
Blind Shaft = 8.6 x 10
*with spline flex shaft option
Weight:

pprox. 3.3 lbs or 1.5 kg

9

revs (50,000 hrs at 2500 RPM)

-3

oz-in-sec2 *

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The HS52 is the industry’s first UL and ATEX rated explosion proof hollow shaft
encoder. Capable of operating directly in Divis ion 1 or Zone 1 environments, the
HS52 does not need an Intrinsic Safety barrier. This provides a simpler, more
streamlined feedback system in explosion proof environments worldwide. Fitted with
a flex shaft in the bore, the HS52 housing can be rigidly mounted, preventing str ess to
encoder bearings and providing a more secure attachment for the required hazardous
area conduit fittings. Additionally, the compact hollow shaft design provides
engineers space saving advantages over tra ditional shafted encoders.

The HS52 is the ideal position sensing solution for use in oil and gas industries,
solvent refining operations, spray painting applications, and explosive environments
where space is limited and operatin g conditions are extreme.

EN 55011 and EN 61000-6-2 CENELEC/ATEX : Ex d IIB T4 Gb

UL: Class I, Div 1, Group C & D

Electrical Specifications

Code: Incremental (Absolute option available)
Output Format: 2 channels in quadrature, 1/2 cycle

index gated with negative B channel
Cycles Per Shaft Turn: 1 to 80,000 (see table 1) For
resolutions above 5,000 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 3)
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, up to 1MHz with
interpolation option (see note 5)

Output Terminations: Side conduit
Note: Consult factory for other electrical options

IECEx UL 11.0009X 

Environmental Specifications

Enclosure Rating: IP66
Hazardous Area Rating:

Class I, Div 1, Groups C and D
CENELEC/ATEX Gas Groups
IECEx certified
Temperature: Operating, 0 to 70ºC; extended
temperature testing available (see note 6); 80ºC max;
storage -25 to 90ºC.

Shock: 50 g’s for 11 msec duration
Vibration: 5 to 2000 Hz @ 20 g’s
Humidity: 100% RH without condensation

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

text can be found on the back of this page.

HS52 Incremental Ordering Options for assistance, call 800.350.2727

Use this diagram, working from left to right to construct your model number (example: HS52-SP11-BS-1024-ABZC-28V/V-SC-CEN)
All notes and tables referred to can be found on the back of this page.

HS52 ABZC SC

TYPE:

HS = Hollow Shaft

52 = 5.2”Dia.

FLEX SHAFT BORE:

SP11 = 11 tooth spline bore

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

BS

SHAFT

CONFIGURATION:

BS = Blind Shaft

CYCLES PER TURN:

See Table 1, next page

ABZC = Dual Quad w/ Index

Tel: [phone] | Fax: [phone] | 7230 Hollister Ave., Goleta, CA 93117-2807 | www.beisensors.com

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NO. OF CHANNELS:

and complements

VOLTAGE / OUTPUT:

28V/V = 5-28 Vin/out

28V/5 = 5-28 Vin/5Vout

28V/OC = 5-28Vin/OCout

OUTPUT

TERMINATION:

SC = dual ¾” – 14 NPT in sides of term. box

CERTIFICATION:

CEN = UL Class I Div 1 and

CENELEC/ATEX

EXD = CENELEC/ATEX only

Blank = not certified

SPECIAL FEATURES:

S = Special

features specified

on purchase order

(consult factory)

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Model HS52 Explosion Proof
Hollow Shaft Incremental Encoder

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BEI Sensors

Dimensions

All measurements in inches

(M5x18 screws)

Notes

1. Non-standard index widths and multiple indices are available by special order. Consult

factory.

2. Complementary outputs are recommended for use with line driver type (source/sink)
outputs. When used with differential receivers, this combination provides a high degree of
noise immunity.

3. Output IC’s: Output IC's are available as either Line Driver (LD) or NPN Open Collector
(OC) types. Open Collectors require pull-up resistors, resulting in higher output source
impedance (sink impedance is similar to that of line drivers). In general, use of a Line Driver
style output is recommended. Line Drivers source or sink current and their lower impedance
mean better noise immunity and faster switching times. Warning: Do not connect any line
driver outputs directly to circuit common/OV, which may damage the driver. Unused outputs
should be isolated and left floating. Our applications specialists would be pleased to discuss
your system requirements and the compatibility of your receiving electronics with Line
Driver type outputs.
28V/V: Multi-voltage Line Driver (7272*): 100 mA source/sink. Input voltage 5 to 28 VDC +/­5% standard (Note: Vout = Vin). This driver is TTL compatible when used with 5 volt supply.

Tables

TABLE 1: Disc Resolutions

32 100 250 360 420
500 512 600 720 1000
1024 1200 1500 1650 1800
2000 2100 2048 2500 2881

3600 3600 3710 4096 5000
For interpolation please specify the multiplied output (up to 80,000) in the
model number, i.e. 80,000-T16.

Figure 1

Output Waveform

Flange

Tel: [phone] | Fax: [phone] | 7230 Hollister Ave., Goleta, CA 93117-2807 | www.beisensors.com

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

Supply lines are protected against overvoltage to 60 volts and reverse voltage. Outputs are
short circuit protected for one minute. Supply current is 120 mA typical (plus load current).
This is the recommended replacement for 3904R and 7406R open collector outputs with
internal pullup resistors. It is also a direct replacement for any 4469, 88C30, 8830 or
26LS31 line driver
28V/5: Multi-voltage Line Driver (7272*): 100 mA source/sink. Input voltage 5 to 28 VDC +/­5% standard, internally regulated with 5V (TTL compatible) logic out. Supply lines are
protected against overvoltage to 60 volts and reverse voltage. Outputs are short circuit
protected for one minute. Supply current is 90 mA typical (plus load current).
15V/V: Multi-voltage Line Driver (4469*): 100 mA source/sink. Input voltage 5 to 15 VDC +/­5% standard (Note: Vout = Vin). TTL compatible when used with 5 volt supply. Supply lines
are protected against overvoltage to 60 volts and reverse voltage. Outputs are short circuit
protected for one minute. Supply current is 90 mA typical (plus load current). This is a direct
replacement for the 4469 Line Driver.
28V/OC: NPN Open Collector (3904*, 7273*). Current sink of 80 mA max. Current sourced
by external pull- up resistor. Output can be pulled up to voltage other than supply voltage
(30 V max). Input voltage 5 to 28 VDC +/- 5% standard. Supply current is 120 mA typical.
This replaces prior IC's with designations of 3904, 7406, 3302, 681 and 689.
5V/OCR, 15V/OCR, 24V/OCR: Open Collector (3904R*, 7406R*, 7273R*): Current sink of
70 mA max. Includes internal pull-ups sized at approximately 100 ohms/volt. Max current
source is 10 mA. Supply current is 100 mA typical, 120 mA with internal pull-ups. The
5V/OCR, 15V/OCR and 24V/OCR are often replaced by the 28V/V in system upgrades.

4. Special –S at the end of the model number is used to define a variety of non-standard
features such as special shaft lengths, voltage options, or special testing. Please consult
the factory to discuss your special requirements.

5. Higher frequency response may be available. Please consult with the factory.

6. Extended temperature ratings are available in the following ranges: -40 to 70ºC or -40 to

80ºC. Max temp extremes above 80°C to +105°C are available but will not be UL or
Cenelec certified. Extended temperature ranges can affect other performance factors.
Consult with factory for more specific information.

Encoder Installation

See specification no. 02131-002
Maintenance and Service

There are no user serviceable parts inside. Encoder must be returned to factory for service.

Specification No. 02131-001 Rev 09-11