Cut Sheet

Specifications
Supply Voltage and Current
24 to 240 V ac (50/60 Hz), 250 V ac maximum
Supply Protection Circuitry
Protected against transient voltages
Output Configuration
SPST SCR solid-state relay with either normally closed or normally open contact (light/
dark operate selectable); 2-wire hookup
Output Rating
Minimum load current 5 mA; maximum steady-state load capability 300 mA to 50 °C
ambient (122 °F) 100 mA to 70 °C ambient (158 °F)
Inrush capability: 3 amps for 1 second (non repetitive); 10 amps for 1 cycle (non
repetitive)
OFF-state leakage current: less than 1.7 mA rms
ON-state voltage drop: ≤ 5 V at 300 mA load, ≤ 10 V at 15 mA load
Output Protection Circuitry
Protected against false pulse on power-up
Output Response Time
Opposed: 2 millisecond on and 1 millisecond off
Non-Polarized and Polarized Retro, Convergent, and Plastic Fiber Optic: 4
milliseconds on and off
Diffuse and Glass Fiber Optic: 8 milliseconds on and off
OFF response time specification does not include load response of up to 1/2 ac cycle
(8.3 milliseconds). Response time specification of load should be considered when
important.
Note: 300 millisecond delay on power-up.
Repeatability
Opposed: 0.3 milliseconds
Non-Polarized and Polarized Retro, Convergent, and Plastic Fiber Optic: 1.3
milliseconds
Diffuse and Glass Fiber Optic: 2.6 milliseconds
Response time and repeatability specifications are independent of signal strength.
Indicators
Red indicator LED on rear of sensor is ON when the load is energized
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 2-conductor 2 m (6.5 ft) or 9 m (30 ft) cables, or 3-pin Micro-style QD
fitting; QD cables available separately
Operating Conditions
Temperature: –20 °C to +70 °C (–4 °F to +158 °F)
90% at +50 °C maximum relative humidity (non-condensing)
Application Notes
Overload conditions can destroy ac MINI-BEAM sensors. Directly wiring sensor
without load series, across hot and neutral will damage sensor (except emitter
models).
Low-voltage use requires careful analysis of the load to determine if the sensor’s
leakage current or on-state voltage will interfere with proper operation of the load.
The false-pulse protection feature may cause momentary drop-out of the load when
the sensor is wired in series or parallel with mechanical switch contacts.
Required Overcurrent Protection
WARNING: Electrical connections must be made by
qualified personnel in accordance with local and
national electrical codes and regulations.
Overcurrent protection is required to be provided by end product application per the
supplied table.
Overcurrent protection may be provided with external fusing or via Current Limiting,
Class 2 Power Supply.
Supply wiring leads < 24 AWG shall not be spliced.
For additional product support, go to
www.bannerengineering.com .
Supply Wiring (AWG) Required Overcurrent Protection (Amps)
20 5.0
22 3.0
24 2.0
26 1.0
28 0.8
30 0.5
Certifications
Performance Curves for SM31Ex Emitter and SM31Rx Receiver Models
Beam Pattern for SM31E/R
Excess Gain Curve for SM31E/R Beam Pattern for SM31EL/RL Excess Gain Curve for SM31EL/RL
3.0 m
10 ft
2.4 m
8 ft
1.8 m
6 ft
1.2 m
4 ft
0.6 m
2 ft
0
0
100 mm
200 mm
300 mm
100 mm
200 mm
300 mm
0
4.0 in
8.0 in
12.0 in
4.0 in
8.0 in
12.0 in
Distance
Opposed Mode
SM31E & SM31R
SMA31E & SM2A31R
1
10
100
.10 m
.33 ft
1.0 m
3.3 ft
10 m
33 ft
.01 m
.033 ft
Distance
1000
Excess Gain
Opposed Mode
SM31E & SM31R
SMA31E & SM2A31R
30 m
100ft
24 m
80 ft
18 m
60 ft
12 m
40 ft
6 m
20 ft
0
0
250 mm
500 mm
750 mm
250 mm
500 mm
750 mm
0
10.0 in
20.0 in
30.0 in
10.0 in
20.0 in
30.0 in
Distance
Opposed Mode
SM31EL & SM31RL
SMA31EL & SM2A31RL
1
10
100
1.0 m
3.3 ft
10 m
33 ft
100 m
330 ft
0.1 m
0.33 ft
1000
Distance
Opposed Mode
Excess Gain
SM31EL & SM31RL
SMA31EL & SM2A31RL
Effective Beam: 3.5 mm Effective Beam: 13 mm
Performance Curves for the SM312Lx Retroreflective Models
Beam Pattern for SM312LVxx
Excess Gain Curve for SM312LVxx Beam Pattern for SM312LP Excess Gain Curve for SM312LP
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
Retroreflective Mode
SM312LV
SM2A312LV
With BRT-3 Reflector
1
10
100
1000
.10 m
.33 ft
1.0 m
3.3 ft
10 m
33 ft
.01 m
.033 ft
Distance
Excess Gain
Retroreflective Mode
With BRT-3 Reflector
SM312LV
SM2A312LV
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
Retroreflective Mode
SM312LP
SM2A312LP
With BRT-3 Reflector
1
10
100
0.1 m
0.3 ft
1 m
3 ft
10 m
30 ft
.01 m
0.03 ft
1000
Distance
Excess Gain
Retroreflective Mode
SM312LP
SM2A312LP
With BRT-3 Reflector
MINI-BEAM
®
AC Voltage Series
P/N 69942 Rev. E www.bannerengineering.com - Tel: [phone]