User Manual
MINI-BEAM
®
SM312D
Self-contained DC-operated Diffuse Mode Sensors
Printed in USA 05/01 P/N 03366 rev. D
• Compact, modulated, self-contained diffuse proximity mode
sensors for 10-30V dc operation
• Range to 380 mm (15") (referenced to 90% reflectance
white test card)
• Switch-selectable for light operate or dark operate
• Includes Banner’s exclusive AID™ alignment system*
• Highly repeatable 1 millisecond response
• Both sourcing and sinking outputs (150 mA max. each);
continuous overload and short-circuit protected
• 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
*US patent number 4356393
MINI-BEAM Diffuse Mode Models
375 mm
15.0 in
300 mm
12.0 in
225 mm
9.0 in
150 mm
6.0 in
75 mm
3.0 in
0
0
5 mm
10 mm
15 mm
5 mm
10 mm
15 mm
0
0.2 in
0.4 in
0.6 in
0.2 in
0.4 in
0.6 in
DISTANCE
SM312D
Diffuse Mode
Models Range Cable*
Supply
Voltage
Output
Type
Excess Gain
Beam Pattern
SM312D
SM312DQD
380 mm
(15")
2 m (6.5')
4-Pin Euro QD
10-30V dc
Bipolar
NPN/PNP
1
10
100
10 mm
.4 in
100 mm
4 in
1000 mm
40 in
1 mm
.04 in
1000
E
X
C
E
S
S
G
A
I
N
DISTANCE
SM312D
Diffuse Mode
Performance based on 90% reflectance white test card
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., SM312D 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., SM312DQDP). 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) May be ordered with 0.3 millisecond on/off response by adding suffix “MHS” to the model numbers
(e.g., SM312DMHS). This modification reduces sensing range (and excess gain).