SM31E - Banner Engineering Corp.

MINI-BEAM®SM31E/SM31R and SM31EL/SM31RL

Self-contained DC-operated Opposed Mode Sensors

Printed in USA 05/01 P/N 03560 rev. C

• Compact, self-contained opposed mode modulated

infrared sensor pairs for 10-30V dc operation

• Standard sensor pairs have 3 m (10 ft) range

• Long range sensor pairs have 30 m (100 ft) range

• Switch-selectable for light operate or dark operate; Highly

repeatable, 1 millisecond response

• Both sourcing and sinking outputs (150 mA maximum ea.)

• Receivers include Banner’s exclusive AID™ alignment

system, US patent number 4356393

• Rugged, epoxy-encapsulated construction: meets NEMA

standards 1, 2, 3, 3S, 4, 4X, 6, 12 and 13, IEC IP67

• Physically and electrically interchangeable with 18 mm

barrel-type photoelectrics

MINI-BEAM Opposed-Mode Emitter (E) and Receiver (R) Models

Models Range Cable* Supply

Voltage Output

Type Excess Gain Beam Pattern

SM31E

SM31R

SM31EQD

SM31RQD

3 m

(10')

2 m (6.5')

4-Pin Euro QD

10-30V dc Bipolar

NPN/PNP

100

.10 m

.33 ft 1.0 m

3.3 ft 10 m

33 ft

.01 m

.033 ft

DISTANCE

1000

SM31E & SM31R

Opposed Mode

3.0 m

10 ft

2.4 m

8 ft

1.8 m

6 ft

1.2 m

4 ft

.6 m

2 ft

100 mm

200 mm

300 mm

100 mm

200 mm

300 mm

4.0 in

8.0 in

12.0 in

4.0 in

8.0 in

12.0 in

DISTANCE

SM31E & SM31R

Opposed Mode

SM31EL

SM31RL

SM31ELQD

SM31RLQD

30 m

(100')

2 m (6.5')

4-Pin Euro QD

10-30V dc Bipolar

NPN/PNP

30 m

100ft

24 m

80 ft

18 m

60 ft

12 m

40 ft

6 m

20 ft

250 mm

500 mm

750 mm

250 mm

500 mm

750 mm

10.0 in

20.0 in

30.0 in

10.0 in

20.0 in

30.0 in

DISTANCE

SM31EL & SM31RL

Opposed Mode

100

1.0 m

3.3 ft 10 m

33 ft 100 m

330 ft

.1 m

.33 ft

1000

DISTANCE

SM31EL & SM31RL

Opposed Mode

Infrared, 880 nm

*NOTES:

i) 9 m (30') cables are available by adding suffix “W/30”to the model number of any cabled sensor (e.g., SM31EL W/30).

ii) A 150 mm (6") long pigtail cable with attached QD connector is available by adding suffix “QDP”to the model number of any

MINI-BEAM sensor (e.g., SM31ELQDP). See page 5 for more information.

iii) A model with a QD connector requires an accessory mating cable. See page 8 for more information.

iv) Emitters and receivers may be ordered with 0.3 millisecond on/off response by adding suffix “MHS”to the model numbers

(e.g., SM31EMHS & SM31RMHS). This modification reduces sensing range (and excess gain).

MINI-BEAM®Sensors

SM31E/SM31R and SM31EL/SM31RL

page 2Banner Engineering Corp. • Minneapolis, U.S.A.

www.bannerengineering.com • Tel: 763.544.3164

MINI-BEAM Installation and Alignment

Proper operation of the sensors requires that they be mounted

securely and aligned properly. Excessive movement or vibration

can cause intermittent or false operation due to loss of alignment.

For maximum mechanical stability, final-mount these sensors in

18-mm holes by their threaded barrels or use a mounting bracket

(see page 6).

1) Begin with the emitter mounted securely in place. For

small-parts counting applications, stretch a string

between the emitter and receiver lenses to ensure that the

sensing beam will pass through the center of the sensing

location. For less critical applications, the receiver may be

initially positioned by line-of-sight placement. Mount the

receiver, leaving a means for movement.

2) Apply power to the emitter and receiver, and advance the

receiver’s 15-turn GAIN control to maximum (clockwise

end of rotation). The GAIN control is clutched at both

ends to avoid damage, and will “free-wheel” when either

endpoint is reached.

If the receiver is “seeing” the emitter’s light beam, the

receiver alignment LED should be “on”. Move the receiver

up-down-right-left (include angular rotation) to obtain the

fastest receiver LED pulse rate. If a pulse is not

observable (too fast to count), reduce the GAIN control

(counterclockwise rotation) to obtain a countable pulse

rate of one to five beats per second. Note: to aid

alignment at short ranges, it may help to further reduce

the strength of the light signal by temporarily masking

the emitter and/or receiver lens with tape or a sheet of

paper.

3) Repeat the alignment motions after each GAIN reduction.

When you have found the receiver orientation that

produces the fastest pulse rate, mount the receiver solidly

in that position. Remove any masking material, and

increase the receiver GAIN to maximum. Test the system

by placing the object to be detected into the sensing

position. The receiver LED indicator should go “off”. If it

does not go “off”, the cause is probably either “flooding”

or “burn-through”.

Flooding occurs when a portion of the effective beam

passes around the object to be sensed and activates the

receiver. Check that the object completely breaks the

beam, and that the beam is centered on the object. Add

apertures, if necessary, to tailor the effective beam to the

size or profile of the object being sensed. Burn-through

refers to a portion of the emitter’s light energy passing

through a thin or translucent object and activating the

receiver. Try sensing at a reduced GAIN setting or

consider an alternative sensing scheme.

15 Turn

Gain

Adjustment

and Light/Dark

Operate Switch*

Gasketed

Acrylic Cover

“AID” Indicator LED lights when the

sensor sees the reflection of its own modulated

light and pulses at a rate proportional to the

strength of the received light signal

Receiver

Down

Left Right

Emitter Receiver

Opposed Mode Alignment

Move receiver to obtain the

fastest LED pulse rate.

* Note regarding Light/Dark operate switch:

• Turn switch fully clockwise for light operate (sensor

outputs conduct when sensing light is received)

• Turn switch fully counterclockwise for dark operate

(sensor outputs conduct when sensing light is not

received)

page 3

MINI-BEAM®Sensors

SM31E/SM31R and SM31EL/SM31RL

Banner Engineering Corp. • Minneapolis, U.S.A.

www.bannerengineering.com • Tel: 763.544.3164

NOTE: DC MINI-BEAMs may be ordered with 0.3 millisecond on/off response by adding suffix “MHS” to the model numbers

(e.g. - SM31EMHS & SM31RMHS). This modification reduces sensing range (and excess gain).

MINI-BEAM DC Sensor Specifications

Certifications

Supply Voltage and Current 10 to 30V dc (10% maximum ripple) at less than 25 mA (exclusive of load)

Supply Protection Circuitry Protected against reverse polarity and transient voltages

Output Configuration Bipolar: One current sourcing (PNP) and one current sinking (NPN) open-collector transistor

Output Rating 150mA maximum each output at 25°C, derated to 100 mA at 70°C (derate ≈1 mA per °C)

Off-state leakage current less than 1 microamp

Output saturation voltage (PNP output) less than 1 volt at 10 mA and less than 2 volts at 150 mA

Output saturation voltage (NPN output) less than 200 millivolts at 10 mA and less than 1 volt at 150 mA

Output Protection Circuitry Protected against false pulse on power-up and continuous overload or short-circuit of outputs

Output Response Time Sensors will respond to either a “light” or a “dark” signal of 1 millisecond or longer duration, 500 Hz max.

0.3 millisecond response modification is available. See note below.

(100 millisecond delay on power-up; outputs do not conduct during this time.)

NOTE: DC MINI-BEAMs may be ordered with 0.3 millisecond on/off response by adding suffix “MHS” to

the model numbers (e.g, SM31EMHS & SM31RMHS). This modification reduces sensing range

(and excess gain).

Adjustments LIGHT/DARK OPERATE select switch, and 15-turn slotted brass screw GAIN (sensitivity) adjustment

potentiometer (clutched at both ends of travel). Both controls are located on rear panel of sensor and

protected by a gasketed, clear acrylic cover.

Indicators Exclusive, patented Alignment Indicating Device system (AID™, US patent #4356393) lights a rear-panel

mounted red LED indicator whenever the sensor sees a “light” condition, with a superimposed pulse rate

proportional to the light signal strength (the stronger the signal, the faster the pulse rate).

Construction Reinforced thermoplastic polyester housing, totally encapsulated, o-ring sealing, acrylic lenses, and

stainless steel screws.

Environmental Rating Meets NEMA standards 1, 2, 3, 3S, 4, 4X, 6, 12, and 13; IEC IP67

Connections PVC-jacketed 4-conductor 2 m (6.5') or 9 m (30') cables, or 4-pin Euro-style quick disconnect (QD)

fitting are available. QD cables are ordered separately. See page 8.

Operating Temperature Temperature: -20°to +70°C (-4°to +158°F)

Maximum relative humidity: 90% at 50°C (non-condensing)

Application Notes The NPN (current sinking) output of dc MINI-BEAM sensors is directly compatible as an input to Banner

logic modules, including all non-amplified MAXI-AMP and MICRO-AMP modules. MINI-BEAMs are

TTL compatible.

MINI-BEAM Dimensions

MINI-BEAM DC Sensor with Integral Cable MINI-BEAM DC Sensor with Quick-Disconnect

MINI-BEAM®Sensors

SM31E/SM31R and SM31EL/SM31RL

page 4Banner Engineering Corp. • Minneapolis, U.S.A.

www.bannerengineering.com • Tel: 763.544.3164

MINI-BEAM DC Hookup Diagrams

Receivers with Attached Cable Receivers with Quick Disconnect

(4-Pin Euro-Style)

bu +

–

bk Load

Load

10-30V dc

bu +

–

bk Load

Load

10-30V dc

Emitters with Attached Cable Emitter with Quick Disconnect

(4-Pin Euro-Style)

Quick Disconnect (QD) Option

DC MINI-BEAM sensors are sold with either a 2 m (6.5') or

a 9 m (30') attached PVC-covered cable, or with a 4-pin

Euro-style QD cable fitting.

DC QD sensors are identified by the letters “QD” in their

model number suffix. For more information on mating QD

cables, see page 8.

4-Pin Euro-Style Pin-out

(Cable Connector Shown)

White Wire

Blue Wire

Black Wire

Brown Wire

12.2 mm (0.48 in)

Mounting Peg

(ø 6.3 mm x 2.5 mm)

ø 3 mm Clearance (2)

M18 x 1 x 15 mm Thread

(Mounting Nut Supplied)

3.2 mm (0.13 in)

53.3 mm (2.10 in) 27.4 mm (1.08 in)

30.7 mm

(1.21 in)24.1 mm

(0.95 in)

2 m (6.5 ft) Cable

19.1 mm (0.75 in)

M12 x 1 Thread

Quick Disconnect

20.0 mm

(0.79 in)

–

10-30V dc

bu +

–

10-30V dc

page 5

MINI-BEAM®Sensors

SM31E/SM31R and SM31EL/SM31RL

Banner Engineering Corp. • Minneapolis, U.S.A.

www.bannerengineering.com • Tel: 763.544.3164

MINI-BEAM Modifications

Description

All MINI-BEAM sensors may be ordered with an integral 9 m (30')

cable in place of the standard 2 m (6.5') cable

Standard dc MINI-BEAM sensors with 1 millisecond output response may

be modified for 0.3 millisecond (300 µs) response.

NOTE: Faster response comes at the expense of lower excess gain.

Also, operating temperature range becomes -20º to +50ºC(-4º to +122ºF)

Model Suffix Modification

MHS

Example of Model

Number

W/30 9 meter (30') cable

Modified for High

Speed

SM31E W/30

SM31EMHS

NOTE: Emitter and receiver

must both have MHS

modification

All MINI-BEAMs may be built

with a 150 mm (6") long

integral cable which is

terminated with the

appropriate QD connector.

QDP Pigtail Quick

Disconnect SM31EQDP

Replacement Lens Assemblies

MINI-BEAM lens assemblies are field-replaceable.

Model Description

UC-300E

UC-300EL

Replacement lens for E/R

Replacement lens for

EL/RL or use for

extending range of E/R

Apertures

Opposed mode MINI-BEAM sensors may be fitted with apertures which narrow or shape the effective beam of the sensor to more closely match

the size or profile of the object to be sensed. A common example is the use of “line” or “slit” type aperture when wire or thread is be sensed.

Each model contains 20 apertures.

Model Description

AP31-020

AP31-040

AP31-100

AP31-020H

AP31-040H

AP31-100H

AP31-200H

AP31-020V

AP31-040V

AP31-100V

AP31-200V

AP31-DVHX2

0.5 mm (0.02") diameter, circular

1.0 mm (0.04") diameter, circular

2.5 mm (0.10") diameter, circular

0.5 x 6.4 mm (0.02" x 0.25"), horizontal slotted

1.0 x 6.4 mm (0.04" x 0.25"), horizontal slotted

2.5 x 6.4 mm (0.10" x 0.25"), horizontal slotted

5.1 x 6.4 mm (0.20" x 0.25"), horizontal slotted

0.5 x 12.7 mm (0.02" x 0.50"), vertical slotted

1.0 x 12.7 mm (0.04" x 0.50"), vertical slotted

2.5 x 12.7 mm (0.10" x 0.50"), vertical slotted

5.1 x 12.7 mm (0.20" x 0.50"), vertical slotted

Kit containing two of each aperture

Right-Angle Reflectors

MINI-BEAM right-angle reflectors are useful for tight sensing

locations. NOTE: These reflectors significantly decrease excess gain.

RAR-

300FM

• Front mount reflector that attaches

directly to the threaded barrel of most

MINI-BEAMs

• Profile dimension of 34 mm (1.35")

in the direction of the scan

Model Description

RAR-

300SM

• Side mount reflector

•Profile dimension of 14 mm (0.56") in

the direction of the scan

MINI-BEAM®Sensors

SM31E/SM31R and SM31EL/SM31RL

page 6Banner Engineering Corp. • Minneapolis, U.S.A.

www.bannerengineering.com • Tel: 763.544.3164

Mounting Brackets

SMB312PD Stainless steel 18 mm barrel-

mounting bracket

Model Description

SMB312S Stainless steel 2-axis, side

mounting bracket

R 5.1 mm

(0.20 in)

ø 3.05 mm

(0.120 in)

ø 3.05 mm Slot

(0.120 in)

20°

90°

15°

(2)

R 24.1 mm

(0.95 in)

31.8 mm

(1.25 in)

20.1 mm

(0.79 in)

45.5 mm

(1.79 in)

20.3 mm

(0.80 in)

R 3.1 mm

(0.12 in) (2)

10° (TYP)

4.32 mm

(0.170 in)

Slot (2)

2.5 mm

(0.10 in)

R 5.1 mm

(0.20 in)

ø 4.6 mm

(0.18 in)

ø 4.6 mm Slot

(0.18 in)

20°

90°

15°

(2)

R 24.1 mm

(0.95 in)

31.8 mm

(1.25 in)

40.6 mm

(1.60 in)

45.5 mm

(1.79 in)

18.42 mm

(0.725 in)

R 3.1 mm

(0.12 in) (2)

15.2 mm

(0.60 in)

2.5 mm

(0.10 in)

SMB312B Stainless steel 2-axis, bottom

mounting bracket

90°

10° (2)

2.5 mm

(0.10 in) 3.1 mm

Slot (2)

(0.12 in)

4.3 mm Slot (2)

(0.17 in)

8.6 mm (2)

(0.34 in)

ø 6.9 mm

(0.27 in)

17.3 mm (2)

(0.68 in)

35.0 mm (2)

(1.38 in)

50.8 mm

(2.00 in)

23.4 mm

(0.92 in)

11.4 mm

(0.45 in)

9.1 mm

(0.36 in)

24.1 mm

(0.95 in)

SMB46L • “L” bracket

• 14 ga 316 stainless steel

8 mm

(0.3 in) 16 mm

(0.6 in)

65 mm

(2.6 in)

27 mm

(1.1 in)

2 mm

(.1 in)

6 mm

(0.2 in)

5 mm (0.2 in)

(2x)

ø36 mm (1.4 in)

ø6.5 mm (0.26 in) (6x)

15 mm

(0.6 in)

6 mm

(0.2 in)

54 mm

(2.1 in)

page 7

MINI-BEAM®Sensors

SM31E/SM31R and SM31EL/SM31RL

Banner Engineering Corp. • Minneapolis, U.S.A.

www.bannerengineering.com • Tel: 763.544.3164

Mounting Brackets

SMB46S

Model Description Dimensions

• “S” bracket

• 14 ga 316 stainless steel

54 mm

(2.1 in)

8 mm

(0.3 in) 16 mm

(0.6 in)

17 mm

(0.7 in)

34 mm

(1.3 in)

65 mm

(2.6 in)

27 mm

(1.1 in) 16 mm

(0.6 in)

2 mm

(.1 in)

6 mm

(0.2 in)

10 mm

(0.4 in)

5 mm (0.2 in)

(4x)

ø36 mm (1.4 in)

ø6.5 mm (0.26 in) (6x)

3.5 mm

(0.14 in)

15 mm

(0.6 in)

6 mm

(0.2 in)

65 mm

(2.6 in)

27 mm

(1.1 in)

2 mm

(.1 in)

16 mm

(0.6 in)

70 mm

(2.8 in)

54 mm

(2.1 in)

8 mm

(0.3 in) 16 mm

(0.6 in)

17 mm

(0.7 in)

34 mm

(1.3 in)

6 mm

(0.2 in)

13 mm

(0.5 in)

5 mm (0.2 in)

(4x)

ø36 mm (1.4 in)

ø6.5 mm (0.26 in) (6x)

3.5 mm

(0.14 in)

15 mm

(0.6 in)

6 mm

(0.2 in)

SMB46U • “U” bracket

• 14 ga 316 stainless steel

40.0 mm

(1.60 in)

42.4 mm

(1.67 in)

30.0 mm

(1.18 in)

2.5 mm

(0.10 in)

21.1 mm

(0.83 in)

Nut Plate

M5 x 0.8

x 60 mm

Screw (2)

13 mm

(0.5 in)

14.0 mm

(0.55 in)

SMB18C

• 18 mm split clamp black

thermoplastic polyester

bracket

• Stainless steel mounting

hardware included

36.0 mm

(1.42")

50.8 mm

(2.00")

42.0 mm

(1.65") 22.9 mm

(0.9")

25.4 mm

(1.00")

10.6 mm

(0.42")

M18 x 1

internal

thread

SMB18SF

• 18 mm swivel bracket

• Black thermoplastic polyester

• Includes stainless steel swivel

locking hardware

MINI-BEAM®Sensors

SM31E/SM31R and SM31EL/SM31RL

Euro-Style Quick-Disconnect Cables

Cable: PVC jacket, polyurethane connector body, nickel-plated brass coupling nut

Conductors: 22 or 20 AWG high-flex stranded, PVC insulation, gold-plated contacts

Temperature: -40°to +90°C (-40°to +194°F)

Voltage Rating: 250V ac/300V dc

4-Pin

Straight

MQDC-406

MQDC-415

MQDC-430

2 m (6.5')

5 m (15')

9 m (30')

Style

4-Pin

Right-angle

MQDC-406RA

MQDC-415RA

MQDC-430RA

2 m (6.5')

5 m (15')

9 m (30')

White Wire

Blue Wire

Black Wire

Brown Wire

Model Length Dimensions: Pin-out

M12 x 1

ø15 mm

(0.6 in)

44 mm max.

(1.7 in)

38 mm max.

(1.5 in)

M12 x 1

ø15 mm

(0.6 in)

38 mm max.

(1.5 in)

MINI-BEAM dc receivers

The following cables are available for extending the length of existing sensor cable. These are 30 m (100') lengths of MINI-BEAM cable. This

cable may be spliced to existing cable. Connectors, if used, must be customer-supplied.

Model Type Used with:

EC312-100 4-conductor

Extension Cables (without connectors)

MINI-BEAM emittersEC312A-100 2-conductor

Banner Engineering Corp., 9714 Tenth Ave. No., Minneapolis, MN 55441 • Phone: 763.544.3164 • www.bannerengineering.com • Email: sensors@bannerengineering.com

WARRANTY: Banner Engineering Corp. warrants its products to be free from defects for one year. Banner Engineering Corp. will repair or

replace, free of charge, any product of its manufacture found to be defective at the time it is returned to the factory during the warranty

period. This warranty does not cover damage or liability for the improper application of Banner products. This warranty is in lieu of any

other warranty either expressed or implied.

WARNING . . . Not To Be Used for Personnel Protection

Never use this product as a sensing device for personnel protection. Doing so could lead to serious injury or death.

This product does NOT include the self-checking redundant circuitry necessar y to allow its use in personnel safety applications. A

sensor failure or malfunction can cause either an energized or de-energized sensor output condition. Consult your current Banner Safety Products

catalog for safety products which meet OSHA, ANSI and IEC standards for personnel protection.