MINI-BEAM
®
dc-Voltage Series
Self-contained photoelectric sensors
Sensing Mode
Opposed Emitter
Range
3 m (10')
LED
Model*
SM31E
SM31R
SM31EL
SM31RL
SM31EPD
Glass Fiber
Optic sensor
Opposed Receiver
Opposed Emitter - Long Range
Opposed Receiver -
Long Range
Opposed Emitter
Clear Plastic Detection
30 m (100')
0 to 300 mm (0 to 12")
Actual range varies,
depending on the light
transmission properties
of the plastic material
being sensed.
5 m (15')
50 mm to 2 m
(2" to 7')
10 mm to 3 m
(0.4" to 10')
380 mm (15")
300 mm (12")
130 mm (5")
16 mm (0.65") Focus
43 mm (1.7") Focus
16 mm (0.65") Focus
Infrared
880 nm
Convergent-mode
sensor
Opposed Receiver
Clear Plastic Detection
Non-Polarized
Retroreflective
Polarized
Retroreflective
Extended-Range
Polarized Retroreflective
Diffuse
Divergent Diffuse
SM31RPD
Visible Red
650 nm
SM312LV
SM312LVAG
SM312LP
SM312D
Infrared
880 nm
SM312DBZ
SM312W
SM312C
SM312C2
Visible Red
650 nm
Visible Blue
475 nm
Visible Green
525 nm
Infrared
880 nm
SM312CV
SM312CV2
SM312CVB
SM312CV2B
SM312CVG
SM312CV2G
SM312F
SM312FV
SM312FVB
SM312FVG
SM312FP
SM312FPB
SM312FPG
SM312FPH
dc mb-emitter w/cable.eps
Emitters with Attached Cable
bn
bu
+
10-30V dc
–
All Other Models
with Attached Cable
bn
bu
wh
bk
Load
+
10-30V dc
–
Convergent
43 mm (1.7") Focus
16 mm (0.65") Focus
49 mm (1.9") Focus
16 mm (0.65") Focus
49 mm (1.9") Focus
Load
Emitters with Quick Disconnect
(4-Pin Euro-Style)
bn
bu
wh
+
10-30V dc
–
Glass Fiber Optic
Visible Red
650 nm
Visible Blue
475 nm
Range varies, depending
on sensing mode and
fiber optics used.
Visible Green
525 nm
Visible Red
650 nm
Visible Blue
475 nm
Visible Green
525 nm
bk
All Other Models with Quick Disconnect
(4-Pin Euro-Style)
bn
bu
wh
Load
Load
Plastic Fiber Optic
+
10-30V dc
–
Special High-Power Option
Plastic Fiber Optic
bk
Visible Red
650 nm
NOTES: Output Type for all models is
Bipolar NPN/PNP. Load
150 mA max., each output.
*
Standard 2 m (6.5') cable models are listed.
•
9 m (30') cable:
add suffix
“W/30”
(e.g.,
SM31EW/30).
•
4-pin Euro QD models:
add suffix
“QD”
(e.g.,
SM31EQD).
•
150 mm (6") QD Pigtail:
add suffix
“QDP”
(e.g.,
SM31EQDP).
For 0.3 ms response:
add suffix
“MHS”
(eg.,
SM31EMHS).
MINI-BEAM
®
dc-Voltage Series
Dimensions
Models with suffix E, EL, EPD, R, RL, RPD, LV, LVAG, LP,
D, C, C2, CV, CV2, CVG, CV2G, CVB, and CV2B
3.2 mm (0.13")
30.7 mm
(1.21")
24.1 mm
(0.95")
12.2 mm (0.48")
Installation
Guide
Models with suffix DBZ and W
ø 3 mm Clearance (2)
ø 3 mm Clearance (2)
M18 x 1 x 15 mm Thread
(Mounting Nut Supplied)
Bezel
18.0 mm (0.71")
2 m (6.5') Cable
Mounting Peg
(ø 6.3 mm x 2.5 mm)
19.1 mm (0.75")
39.1 mm
(1.54")
13.2 mm (0.52")
53.3 mm (2.10")
27.4 mm (1.08")
Models with suffix F, FV, FVB, and FVG
Models with suffix FP, FPB, FPG, and FPH
3.2 mm (0.13")
30.7 mm
(1.21")
24.1 mm
(0.95")
12.2 mm (0.48")
ø 3 mm Clearance (2)
M18 x 1 x 19 mm Thread
(Mounting Nut Supplied)
Fiber
Optic
Fitting
2 m (6.5') Cable
Fiber Optic Fitting
Mounting Peg
(ø 6.3 mm x 2.5 mm)
19.1 mm
(0.75")
22.3 mm
(0.88")
57.5 mm (2.27")
31.2 mm (1.23")
42.1 mm
(1.66")
16.2 mm
(0.64")
QD Models
Sensor Features
(shown with gasketed acrylic cover removed)
Gain (Sensitivity) Adjustment Screw
Alignment Indicator Device (AID)*
12 mm Thread
Quick-disconnect
20.0 mm
(0.79")
Light/Dark Operate Select Switch
Clockwise: Light Operate
(outputs conduct when sensing
light is received).
Counterclockwise: Dark Operate
(outputs conduct when sensing
light is not received).
*U.S. Patent no. 4356393
NOTE: Please observe proper ESD precautions (grounding)
when adjusting gain pot or LO/DO switch.
MINI-BEAM
®
dc-Voltage Series
Installation
Specifications
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
150 mA 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):
< 1 volt at 10 mA, < 2 volts at 150 mA
Output saturation voltage (NPN output):
< 200 millivolts at 10 mA, < 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 “dark” signal of 1 millisecond or longer duration,
500 Hz maximum. Modification for 0.3 millisecond response is available (MHS-suffix
models; these models also feature reduced sensitivity range and reduced repeatability.)
NOTE: Outputs are non-conducting during 100 millisecond delay on power-up.
Repeatability
Opposed:
0.14 milliseconds
Non-Polarized and Polarized Retro, Diffuse, Convergent, Glass Fiber Optic, and
Plastic Fiber Optic:
0.3 milliseconds
Response time and repeatability specifications are independent of signal strength.
Adjustments
Light/Dark Operate Select switch
15-turn slotted brass screw Gain (sensitivity) adjustment potentiometer (clutched at both
ends of travel)
Located on the rear panel, protected by a gasketed, clear acrylic cover.
Indicators
Patented alignment Indicator Device system (AID™, US patent #4356393) lights a rear-
panel-mounted LED indicator when the sensor sees light. Its pulse rate is 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, 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 QD fitting;
QD cables available separately.
Operating Conditions
Temperature:
-20° to +70°C (-4° to +158°F)
Maximum relative humidity:
90% at 50°C (non-condensing)
Application Note
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.
Certifications
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