Banner VALU-BEAM Series - Manual (Page 6)

Sensing Mode
SM912D
Voltage: 10 to 30V dc
Range: 30 inches (76 cm)
Response: 4ms on/off
Beam: infrared, 880nm
SM2A912D
Voltage: 24 to 250V ac
Range: 30 inches (76 cm)
Response: 8ms on/off
Beam: infrared, 880nm
SM912CV
Voltage: 10 to 30V dc
Focus at 1.5" (38 mm)
Response: 4ms on/off
Beam: visible red, 650nm
SM2A912CV
Voltage: 24 to 250V ac
Focus at 1.5" (38 mm)
Response: 8ms on/off
Beam: visible red, 650nm
SM912DSR
Voltage: 10 to 30V dc
Range: 15 inches (38cm)
Response: 4ms on/off
Beam: infrared, 880nm
SM2A912DSR
Voltage: 24 to 250V ac
Range: 15 inches (38cm)
Response: 8ms on/off
Beam: infrared, 880nm
Beam Pattern Models
These sensors operate by detecting the reflection of their own light from
the object being sensed, and therefore require no special reflectors. "DSR"
models have better response than "D" models to objects within 3 inches of
the sensor. "DSR" models should be used when it is necessary to minimize
sensor response to background objects.
Excess Gain
1000
100
10
1
.1 IN 1 IN 10 IN 100 IN
DISTANCE
(Range based on 90%
reflectance white test card)
SM912D, SM2A912D
E
X
C
E
S
S
G
A
I
N
I
1000
100
10
1
.1 IN 1 IN 10 IN 100 IN
DISTANCE
(Range base on 90%
reflectance white test card)
SM912DSR,
SM2A912DSR
E
X
C
E
S
S
G
A
I
N
I
1000
100
10
1
.1 IN 1 IN 10 IN 100 IN
DISTANCE
(Range based on 90%
reflectance white test
card)
SM912CV,
SM2A912CV
E
X
C
E
S
S
G
A
I
N
I
DIFFUSE Mode
.5 0
0
.03
.06
.09
.03
.06
.09
1.0 1.5 2.0 2.5
I
N
C
H
E
S
DISTANCE TO 90% WHITE TEST CARD--INCHES
SM912CV
SM2A912CV
3 6 9 12 15 0
0
.25
.50
.75
.25
.50
.75
I
N
C
H
E
S
DISTANCE TO 90% WHITE TEST CARD--INCHES
SM912DSR
SM2A912DSR
6 12 18 24 30 0
0
.25
.50
.75
.25
.50
.75
I
N
C
H
E
S
DISTANCE TO 90% WHITE TEST CARD--INCHES
SM912D
SM2A912D
Repeatability:
1.3ms (dc models);
2.6ms (ac models)
OBJECT
VALU-BEAM 912 Series Sensors
6
1000
100
10
1
.1 IN 1 IN 10 IN 100 IN
DISTANCE
SM912C,
SM2A912C
(Range based on
90% reflectance
white test card)
E
X
C
E
S
S
G
A
I
N
I
.6 0
0
.03
.06
.09
.03
.06
.09
1.2 1.8 2.4 3.0
I
N
C
H
E
S
DISTANCE TO 90% WHITE TEST CARD--INCHES
SM912C
SM2A912C
OBJECT
VALU-BEAM SM912CV and SM2A912CV visible red convergent sensors
(above) produce a precise .06" diameter sensing spot at a focus point 1.5" in
front of the sensor lens. Due to their very narrow depth of field, they excel at
detecting small objects only a fraction of an inch away from backgrounds.
They are also ideal for some high-contrast color-registration applications.
Their visible red sensing beam simplifies alignment.
Models SM912C and SM2A912C (below) are infrared convergent beam sensors.
Operating voltages, response times, repeatability, and focus distance are the same
as for the SM912CV and SM2A912CV. The SM912C and SM2A912C, however,
have much higher excess gain and an infrared sensing beam for highly reliable
sensing of objects of low reflectivity.
SM912C
Voltage: 10 to 30V dc
Focus at 1.5" (38 mm)
Response: 4ms on/off
Beam: infrared, 880nm
SM2A912C
Voltage: 24 to 250V ac
Focus at 1.5" (38 mm)
Response: 8ms on/off
Beam: infrared, 880nm
Repeatability:
1.3ms (dc models);
2.6ms (ac models)
CONVERGENT Mode