User Manual

page 3
MINI-BEAM
®
Sensors SM2A312LV, SM2A312LVAG and SM2A312LP
AC MINI-BEAM Product Specifications
Certifications
Supply Voltage and Current 24 to 240V ac (50 to 60 Hz); 250V ac max.
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 50º C ambient (122º F),
100 mA to 70º C ambient (158º F)
Inrush Capability 3 amps for 1 second (non-repetitive); 10 amps for 1 cycle (non-repetitive).
Off State Leakage Current less than 1.7mA 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 and inductive load transients.
Output Response Time 4 milliseconds “on” and “off.” “Off”response time does not include load response time of up to 1/2 ac
cycle (8.3 milliseconds). Response time specification of load should be considered when important. (300
millisecond delay on power-up).
Repeatability 1.3 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 po-
tentiometer (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 VALOX
®
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 IP66
Connections PVC-jacketed 2-conductor 2 m (6.5ft) or 9 m (30ft) cables, or 3-pin micro-style quick disconnect (QD)
fitting are available. QD cables are ordered separately. See page 8.
Operating Temperature 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 parallel with mechanical switch contacts
For MINI-BEAM:
i) 9 m (30 ft) cables are available by adding suffix “W/30” to the model number of any cabled sensor (e.g. - SM2A312LP W/30)
ii) A 150 mm (6 in) long pigtail cable with attached QD connector is available by adding suffix “QDP” to the model number
(e.g. - SM2A312LPQDP).
iii) A model with a QD connector requires an optional mating cable (see accessories, page 8).
VALOX
®
is a registered trademark of General Electric Company