Owner's manual

MINI-BEAM
®
Sensors - SM2A312DBZ and SM2A312W
page 3
Banner Engineering Corp. • Minneapolis, U.S.A.
Website: http://www.baneng.com • Tel: [phone]
Certifications
Supply Voltage and Current 24 to 240V ac (50/60 Hz), 250V ac max
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 volts at 300 mA load, ≤10 volts at 15 mA load
Output Protection Circuitry Protected against false pulse on power-up
Output Response Time 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 2.6 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
potentiometer (clutched at both ends of travel). Both controls are located on rear panel of sensor and
protected by a gasketed, clear acrylic cover.
Indicators Red indicator LED on rear of sensor is ON when the load is energized.
Construction
Reinforced PBT polyester housing, totally encapsulated, o-ring sealing, acrylic lenses, and stainless steel screws
Environmental Rating Meets NEMA standards 1, 2, 3, 3S, 4, 4X, 12, and 13; IEC IP67
Connections PVC-jacketed 2-conductor 2 m (6.5') or 9 m (30') cables, or 3-pin Micro-style quick-disconnect (QD)
fitting are available. QD cables are ordered separately. See page 6.
Operating Conditions Temperature: -20° to +70°C (-4° to +158°F)
Maximum Relative Humidity: 90% at 50°C (non-condensing)
Application Notes i) AC MINI-BEAMs may be destroyed from overload conditions
ii) Use on low voltage requires careful analysis of the load to determine if the leakage current or on-state
voltage of the sensor will interfere with proper operation of the load
iii) The false-pulse protection feature may cause momentary drop-out of the load when the sensor is
wired in series or in parallel with mechanical switch contacts
MINI-BEAM AC Specifications