SM31E Datasheet, PDF (3/8 Pages) List of Unclassifed Manufacturers – Self-contained DC-operated Opposed Mode Sensors

MINI-BEAM^® Sensors SM31E/SM31R and SM31EL/SM31RL
Supply Voltage and Current
Supply Protection Circuitry
Output Configuration
Output Rating
Output Protection Circuitry
Output Response Time
Adjustments
Indicators
Construction
Environmental Rating
Connections
Operating Temperature
Application Notes
Certifications
MINI-BEAM DC Sensor Specifications
10 to 30V dc (10% maximum ripple) at less than 25 mA (exclusive of load)
Protected against reverse polarity and transient voltages
Bipolar: One current sourcing (PNP) and one current sinking (NPN) open-collector transistor
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
Protected against false pulse on power-up and continuous overload or short-circuit of outputs
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).
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.
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).
Reinforced thermoplastic polyester housing, totally encapsulated, o-ring sealing, acrylic lenses, and
stainless steel screws.
Meets NEMA standards 1, 2, 3, 3S, 4, 4X, 6, 12, and 13; IEC IP67
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.
Temperature: -20° to +70°C (-4° to +158°F)
Maximum relative humidity: 90% at 50°C (non-condensing)
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.
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).
Banner Engineering Corp. • Minneapolis, U.S.A.
www.bannerengineering.com • Tel: [phone]
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