circuit lights the LED whenever the sensor detects its own modulated
light source, and pulses the LED at a rate proportional to the received
light level.
CONSTRUCTION:
reinforced VALOX
®
housing with components
totally encapsulated. Stainless steel hardware. Meets NEMA standards
1, 3, 12, and 13.
OPERATING TEMPERATURE RANGE:
-40 to +70 degrees C
(-40 to +158 degrees F).
VALOX
®
is a registered trademark of General Electric Company.
Dimensions, 3- and 4-wire Scanner Block
MULTI-BEAM
3- & 4-wire Scanner Blocks
Sensing Mode
Models
SBF1
Range:
see excess gain
curves
Response:
1ms on/off
Repeatability:
0.3ms
Beam:
infrared, 940nm
1000
Excess Gain
SBF1
E
X
C
100
E
S
S
G
10
A
II
N
no lenses
1
.1 FT
Opposed mode,
with IT23S fibers
with
L16F
lenses
Beam Pattern
3
2
I
N 1
C 0
H
E
S 1
2
3
0
SBF1
NO LENSES
opposed mode
IT13S fibers
IT23S fibers
with
L9
lenses
1 FT
10 FT
100 FT
4
8
12
16
20
FIBER OPTIC Mode
(glass fiber optics)
HIGH-SPEED SCANNER BLOCK
OPPOSED MODE
OBJECT
Fiber optic information:
IT13S:
individual assembly
.06in (1,5mm) dia. bundle
IT23S:
individual assembly
.12 in. (3mm) dia. bundle
BT13S:
bifurcated assem-
bly, .06 in. (1,5mm) dia.
bundle
BT23S:
bifurcated assem-
bly, .12 in. (3mm) dia.
bundle
L9:
.5in. (12mm) dia. lens
L16F:
1.0 in. (25mm) dia.
lens
For information on the
complete line of glass fiber
optics, see Banner product
catalog.
OPPOSED DISTANCE--INCHES
DISTANCE
1000
E
X
C
E
100
S
S
G
A
II
10
N
with
L9
lenses
1
.1 FT
1 FT
SBF1
Retroreflective mode,
with BRT-3 reflector
and BT13S fibers
6
4
I
N 2
C 0
H
E
S 2
4
6
0
SBF1
with BT13S fibers
and BRT-3 reflector
L16F LENS
with
L16F
lenses
L9 LENS
10 FT
100 FT
4
8
12
16
20
DISTANCE TO REFLECTOR--FEET
DISTANCE
RETROREFLECTIVE MODE
RETRO TARGET
1000
SBF1
E
X
C
E
100
S
S
G
A
10
II
N
Diffuse mode
.075
.05
I
N .025
C
H 0
E
S .025
.05
.075
0
.5
1.0
1.5
2.0
2.5
OBJECT
SBF1
BT13S
(Range based on 90% reflectance
white test card)
DIFFUSE MODE
OBJECT
BT23S
with
BT23S fibers
with
BT13S
fibers
1 IN
10 IN
100 IN
1
.1 IN
DISTANCE TO 90% WHITE TEST CARD--INCHES
DISTANCE
Fiber optics are often used to sense small parts. Small parts or narrow profiles which move at a high rate of speed can require sensors with fast response times for
reliable detection. High speed fiber optic sensors are ideal for sensing gear or sprocket teeth or other targets in applications involving counters or shift registers for
position control. Selection of the fiber optic sensing tip should involve matching the effective beam of the fiber to the profile of the part to be sensed to maximize
the time that the part is sensed and/or the time between adjacent parts. Combining the best selection of fiber tip geometry with a high speed sensor will result in
a highly repeatable position sensing system. The model BT13S fiber optic assembly used with a model L9 or L16F lens and a high speed scanner block is an excellent
system for retroreflective code reading or for almost any short range retroreflective sensing application. Response time of a MULTI-BEAM sensor is also a function
of the power block. For this reason, only power blocks which switch dc (e.g. PBT, PBP, PBO, PBAT, etc) should be used if the fast response time of the scanner
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