Banner VALU-BEAM Series - Manual (Page 4)

dc
sensor specifications
ac
sensor specifications
Dimension Drawing,
Front View
VALU-BEAM 912 Series Sensors
4
Rear View
Functional Schematic: SM912 Series DC Sensors Functional Schematic: SM2A912 Series AC Sensors
SUPPLY VOLTAGE: 24 to 250V ac (50/60Hz), except for SMA91E,
ESR, and EF emitters, which operate from 10 to 250V ac or dc.
OUTPUT CONFIGURATION: solid-state switching element.
OUTPUT RATING: min. load current 10mA; max. steady-state load
capability 750mA to 50
°
C ambient (122
°
F), 500mA to 70
°
C ambient
(158
°
F). Inrush capability 4 amps for 1 sec. (non-repetitive). Off-state
leakage current less than 1.7mA rms. On-state voltage drop
≤
5 volts
rms at 750mA load,
≤
10 volts rms at 15mA load.
OUTPUT PROTECTION: protected against false pulse on power-
up and inductive load transients.
RESPONSE TIME: 8 milliseconds ON, 8 milliseconds OFF (except
receiver-only units, which are 8 ms ON and 4 ms OFF). OFF time does
not include load response of up to 1/2 ac cycle (8.3 milliseconds).
Independent of signal strength. Response time specification of the load
should be considered when important. 300-millisecond delay on
power-up (outputs are non-conducting during this time).
REPEATABILITY OF RESPONSE: see individual sensor specs.
Does not take into consideration "off" response time variation of up to
1/2 ac cycle (8.3ms) and load response time. Independent of signal
strength.
CONSTRUCTION: reinforced VALOX ® housing, totally encapsu-
lated, molded acrylic lenses, stainless steel hardware. Meets NEMA
standards 1, 2, 3, 3S, 4, 4X, 12, and 13.
CABLE: 6' of PVC-jacketed 2-conductor cable standard. Three-pin
quick-disconnect (QD) models are available optionally (one connector
pin goes unused). Model MBCC-312 3-conductor cable for "QD"
models must be purchased separately (see pages 18 and 19).
ADJUSTMENTS: LIGHT/DARK OPERATE select switch and
SENSITIVITY control potentiometer, both located on rear of sensor.
INDICATOR LED: top-mounted red LED indicator lights when
output is conducting. Model SMA91E emitter has a visible-red "tracer
beam" which indicates "power on" and enables easy "line-of-sight"
alignment.
OPERATING TEMPERATURE RANGE: -20 to +70 degrees C
(-4 to +158 degrees F).
SUPPLY VOLTAGE: 10 to 30V dc at 20mA, exclusive of load
(except for SMA91E, ESR, and EF emitters, which operate from 10 to
250V ac or dc, 10mA max.).
OUTPUT CONFIGURATION: one current sourcing (PNP) and one
current sinking (NPN) open-collector transistor.
OUTPUT RATING: 250mA continuous, each output. Off-state
leakage current less than 10 microamps. Output saturation voltage:
for PNP output, <1 volt at 10mA and <2 volts at 250mA; for NPN
output, <200 millivolts at 10mA and <1volt at 250mA.
OUTPUT PROTECTION: protected against false pulse on power-
up, inductive load transients, power supply polarity reversal, and
continuous overload or short circuit of outputs.
RESPONSE TIME: 4 milliseconds ON, 4 milliseconds OFF (except
reciever-only units, which are 8 ms ON and 4 ms OFF). Independent
of signal strength. 100 millisecond delay on power-up (outputs non-
conducting during this time).
REPEATABILITY OF RESPONSE: see individual sensor specs.
Independent of signal strength.
CONSTRUCTION: reinforced VALOX ® housing, totally encapsu-
lated, molded acrylic lenses, stainless steel hardware. Meets NEMA
standards 1, 2, 3, 3S, 4, 4X, 12, and 13.
CABLE: 6' of PVC-jacketed cable standard; 2-conductor (emitters) or
4-conductor. Quick-disconnect (QD) models are available optionally.
Model MBCC-412 4-conductor cable for dc "QD" models must be
purchased separately. DC "QD" emitters use cable model MBCC-312.
"QD" cable is purchased separately; see pages 18 and 19.
ADJUSTMENTS: LIGHT/DARK OPERATE select switch and
SENSITIVITY control potentiometer, both located on rear of sensor.
INDICATOR LED: exclusive, patented Alignment Indicating De-
vice system (AID™, US patent #4356393) lights a top-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).
OPERATING TEMPERATURE RANGE: -20 to +70 degrees C
(-4 to +158 degrees F).