MINI-BEAM®SM312LV, SM312LVAG and SM312LP
Self-contained DC-operated Retroreflective Mode Sensors
Printed in USA 05/01 P/N 03562 rev. C
• Compact, modulated, self-contained retroreflective sensors for
10-30V dc operation
• Choose standard visible model for highest excess gain and greatest range,
or polarized models for detection of shiny objects
• Includes Banner’s exclusive AID™ alignment system;
US patent number 4356393
• Switch-selectable for light operate or dark operate
• Highly repeatable 1 millisecond response
• Both sourcing and sinking outputs (150 mA max. each); continuous overload
and short-circuit protected
• Physically and electrically interchangeable with 18 mm barrel-type
photoelectrics
DC MINI-BEAM Retroreflective Mode Models
Models* Range Cable Supply
Voltage Output
Type Excess Gain Beam Pattern
Non-Polarized
1
10
100
1000
.10 m
.33 ft 1.0 m
3.3 ft 10 m
33 ft
.01 m
.033 ft
E
X
C
E
S
S
G
A
I
N
DISTANCE
SM312LV
Retroreflective Mode
With BRT-3 Reflector
5 m
15 ft
4 m
12 ft
3 m
9 ft
2 m
6 ft
1 m
3 ft
0
0
25 mm
50 mm
75 mm
25 mm
50 mm
75 mm
0
1.0 in
2.0 in
3.0 in
1.0 in
2.0 in
3.0 in
DISTANCE
SM312LV
Retroreflective Mode
With BRT-3 Reflector
SM312LV
SM312LVQD 5 m
(15') 2 m (6.5')
4-Pin Euro QD 10-30V dc Bipolar
NPN/PNP
Polarized
1
10
100
.10 m
.33 ft 1.0 m
3.3 ft 10 m
33 ft
.01 m
.033 ft
E
X
C
E
S
S
G
A
I
N
1000
DISTANCE
SM312LVAG
Retroreflective Mode
With BRT-3 Reflector
3.0 m
10 ft
2.4 m
8 ft
1.8 m
6 ft
1.2 m
4 ft
.6 m
2 ft
0
0
25 mm
50 mm
75 mm
25 mm
50 mm
75 mm
0
1.0 in
2.0 in
3.0 in
1.0 in
2.0 in
3.0 in
DISTANCE
SM312LVAG
Retroreflective Mode
With BRT-3 Reflector
SM312LVAG
SM312LVAGQD
50 mm
to
2 m
(2" to 7')
2 m (6.5')
4-Pin Euro QD 10-30V dc Bipolar
NPN/PNP
Extended Range Polarized
1
10
100
0.1 m
0.3 ft 1 m
3 ft 10 m
30 ft
.01 m
0.03 ft
1000
E
X
C
E
S
S
G
A
I
N
DISTANCE
SM312LPQD
Retroreflective Mode
With BRT-3 Reflector
3.0 m
20 ft
2.4 m
8 ft
1.8 m
6 ft
1.2 m
4 ft
.6 m
2 ft
0
0
20 mm
40 mm
60 mm
20 mm
40 mm
60 mm
0
0.8 in
1.6 in
2.4 in
0.8 in
1.6 in
2.4 in
DISTANCE
SM312LP
Retroreflective Mode
With BRT-3 Reflector
SM312LP
SM312LPQD
10 mm
to
3 m
(0.4" to
10')
2 m (6.5')
4-Pin Euro QD 10-30V dc Bipolar
NPN/PNP
Visible red, 650 nm
Non-Polarized Polarized
P
NOTE: Retroreflective range is specified using one model BRT-3 retroreflector (3"
diameter). Actual sensing range may be more or less than specified, depending upon the
efficiency and reflective area of the retroreflector(s) used. See the Banner Photoelectric
Sensors catalog for more information on available retroreflectors.
*See notes on page 3.
MINI-BEAM®Sensors
SM312LV, SM312LVAG and SM312LP
page 2Banner Engineering Corp. • Minneapolis, U.S.A.
www.bannerengineering.com • Tel: 763.544.3164
MINI-BEAM Installation and Alignment
Proper operation of these sensors requires that they be mounted securely and aligned
properly. For best results, final-mount these sensors in an 18 mm hole by their threaded
barrel or use one of the available mounting brackets, (see pages 6 - 7).
1) Begin with the sensor at the desired distance from the retro target and at the
approximate position where it will be mounted. An object at the sensing
position should pass through the “core” of the sensor’s light beam.
2) Apply power to the sensor, and advance the sensor’s 15-turn GAIN control to
maximum (clockwise end of rotation). If the sensor is “seeing” the reflected
light beam, the alignment LED should be “on”. Move the sensor up-down-
right-left to obtain the fastest receiver LED pulse rate. (alternatively, the retro
target may be moved.) If a pulse is not observable (too fast to count), reduce
the GAIN control (counterclockwise rotation) to obtain a countable pulse rate.
(As an aid to alignment, it may be necessary to further reduce the strength of
the light signal by tape-masking a portion of the retroreflective target area.)
3) Repeat the alignment motions after each GAIN reduction. When you have
found the sensor orientation that produces the fastest pulse rate, mount the
sensor (or reflector) solidly in that position. Increase the receiver GAIN to
maximum. Test the system by placing the object to be detected into the
sensing position. The indicator should go “off”. If an “LV” model sensor’s
indicator does not go “off” at this point, the sensor is reacting to light reflected
from the object (“proxing”).
If proxing occurs, reduce the GAIN setting until the alignment indicator goes
“off”, plus two additional full turns. Remove the object from the sensing
position and check that the alignment indicator LED comes “on” and pulses at
a rate of at least two flashes per second. Confirm that the LED goes “off” when
the object is replaced.
Proxing can be avoided by mounting the sensor so that it’s light beam is not
perpendicular to any flat reflective surface on the object to be detected (an
angle of 10 to 15 degrees is usually sufficient). Also, at distances of a few feet
or more, using more than one reflector may increase sensing contrast between
object-present and object-absent.
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
received light signal.
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Up
Down
Left
Retro
Target
Retroreflective Mode Alignment
Move sensor (or target) to
obtain the fastest receiver 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
SM312LV, SM312LVAG and SM312LP
Banner Engineering Corp. • Minneapolis, U.S.A.
www.bannerengineering.com • Tel: 763.544.3164
NOTES:
i) 9 m (30') cables are available by adding suffix “W/30”to the model number of any cabled sensor (e.g., SM312LP W/30).
ii) Standard models have 1 millisecond output response; models with 0.3 millisecond (300 microsecond) response are available by
adding suffix “MHS”to the model number (e.g., SM312LPMHS). Note that this modification reduces the maximum operating
temperature to +50º C (122ºF).
iii) A 150 mm (6") long pigtail cable with attached QD connector is available by adding suffix “QDP” to the model number
(e.g., SM312LPQDP).
iv) A model with a QD connector requires an optional mating cable (see accessories, page 8).
MINI-BEAM DC Product Specifications
Certifications
Supply Voltage and Current 10 to 30V dc (10% maximum ripple) at less than 25mA (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 100mA at 70°C (derate ≈1mA per °C)
Off-state leakage current less than 1 microamp
Output saturation voltage (PNP output) less than 1 volt at 10mA and less than 2 volts at 150mA
Output saturation voltage (NPN output) less than 200 millivolts at 10mA and less than 1 volt at 150mA
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, 500Hz max.
0.3 millisecond response modification is available. See Note below.
100 millisecond delay on power-up; outputs do not conduct during this time.
Repeatability 0.3 milliseconds. Response time and repeatability specifications are independent of signal strength.
Adjustments LIGHT/DARK OPERATE select switch, and 15-turn slotted brass screw GAIN (sensitivity) adjustment po-
tentiometer (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 PBT 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 Dimension Information
MINI-BEAM DC Sensor with Integral Cable MINI-BEAM DC Sensor with Quick-Disconnect
MINI-BEAM®Sensors
SM312LV, SM312LVAG and SM312LP
page 4Banner Engineering Corp. • Minneapolis, U.S.A.
www.bannerengineering.com • Tel: 763.544.3164
MINI-BEAM DC Hookup Diagrams
DC Sensors with Attached Cable DC Sensors with Quick Disconnect
(4-Pin Euro-Style)
bn
wh
bu +
–
bk Load
Load
10-30V dc
bn
wh
bu +
–
bk Load
Load
10-30V dc
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. Mating cables for QD MINI-BEAM
sensors are model MQDC-415 (straight connector) or
MQDC-415RA (right-angled connector). Cables are supplied
in a standard length of 5 m (15'). For more information on
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)
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)
M12 x 1 Thread
Quick Disconnect
19.1 mm (0.75 in)
page 5
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 -20°to +50°C (-4°to
+122°F)
Model Suffix Modification
MHS
Example of Model
Number
W/30 9 meter (30') cable
Modified for High
Speed
SM312LP W/30
SM312LPMHS
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 SM312LPQDP
MINI-BEAM®Sensors
SM312LV, SM312LVAG and SM312LP
Banner Engineering Corp. • Minneapolis, U.S.A.
www.bannerengineering.com • Tel: 763.544.3164
Replacement Lens Assemblies
MINI-BEAM lens assemblies are field-replaceable.
Model Description
UC-300AG
UC-300L
UC-300LP
Replacement lens for LVAG
Replacement lens for LV
Replacement lens for LP
Retroreflective Targets
Banner offers a wide selection of high-
quality retroreflective targets. See the
Banner Photoelectric Sensors Catalog.
MINI-BEAM®Sensors
SM312LV, SM312LVAG and SM312LP
page 6Banner Engineering Corp. • Minneapolis, U.S.A.
www.bannerengineering.com • Tel: 763.544.3164
Mounting Brackets
Model Description Dimensions
R 5.1 mm
(0.20 in)
ø 3.05 mm
(0.120 in)
ø 3.05 mm Slot
(0.120 in)
20°
90°
C
L
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)
SMB312S Stainless steel 2-axis, side mounting bracket
90°
10° (2)
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)
SMB312B Stainless steel 2-axis, bottom mounting bracket
Includes SMB12F (below)
#4-40 x 5 mm ( 0.2 in) Deep Thread
#4-40 x 6.4 mm (0.25 in) Screw is Supplied
SMB312F
Mounting Foot
2.3 mm
(0.09 in)
35.0 mm
(1.38 in)
Mounting Peg
ø 6.4 mm (0.25 in) x
2.5 mm (0.10 in) High
Screw to Hold
Mounting Foot to
Sensor Body (Supplied)
C
L
SMB312F
• A mounting foot used to attach to bottom
surface of any MINI-BEAM sensor to a flat
mounting surface
• Attaches securely beneath the MINI-BEAM
sensor’s barrel using a special extra-long upper
cover mounting screw (supplied)
page 7
MINI-BEAM®Sensors
SM312LV, SM312LVAG and SM312LP
Banner Engineering Corp. • Minneapolis, U.S.A.
www.bannerengineering.com • Tel: 763.544.3164
Mounting Brackets
46.0 mm
(1.81 in)
44.5 mm
(1.75 in)
36.0 mm
(1.42 in)
2.5 mm
(0.10 in)
25.4 mm
(1.00 in)
13.0 mm (0.50 in) Nut Plate
Spacer
(If Required)
M5 x 0.8
x 60 mm
Screw (2)
6.4 mm
(0.25 in)
10.9 mm
(0.43 in)
SMB18S • 18 mm swivel, black thermoplastic polyester
bracket
• Stainless steel mounting hardware included
Model Description
R 5.1 mm
(0.20 in)
ø 4.6 mm
(0.18 in)
ø 4.6 mm Slot
(0.18 in)
20°
90°
C
L
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)
Dimensions
SMB312PD • Stainless steel 18 mm barrel-mounting bracket
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
Banner Engineering Corp., 9714 Tenth Ave. No., Minneapolis, MN 55441 • Phone: 763.544.3164 • www.bannerengineering.com • Email: sensors@bannerengineering.com
MINI-BEAM®Sensors
SM312LV, SM312LVAG and SM312LP
Euro-Style Quick-Disconnect Cables
38 mm max.
(1.5 in)
M12 x 1
ø15 mm
(0.6 in)
38 mm max.
(1.5 in)
Cable: PVC jacket, polyurethane connector body, chrome-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')
• MINI-BEAM dc SM312 series
Style
M12 x 1
ø15 mm
(0.6 in)
44 mm max.
(1.7 in)
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 Used with: Dimensions Pin-out
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.
!
