Beam Pattern
OPPOSED Mode
LR/PT200, 250, 300, and 400 opposed mode remote sensors are
identical electronically and optically, and differ only in their housings.
All are totally epoxy-encapsulated and use hermetically sealed glass
lenses to eliminate condensation inside the optical chamber. These
sensors may be washed down without damage. Operating temperature
is determined by the type of cable used (see specications above). All
models have a wide beam angle for forgiving line-of-sight alignment.
At the same time, the effective beam of each pair is only 1/8 inch, al-
lowing small-prole resolution and reliable response to fast-moving
objects. LR models are emitters, and PT models are receivers.
LR200 & PT200: this is a right-angle design which mounts through
a 7/16 inch (12mm) diameter hole, using the steel jam nut which is
included. This pair is used most commonly on small conveyors when
it is desireable to run the cable directly down to a wireway.
LR250 & PT250: these sensors feature a 1/4 inch (6,4mm) diameter
smooth barrel design, and are usually held in place in a clearance hole
with a small set-screw. Optional mounting blocks (shown below)
are available. Model SMB250 holds the sensor in place with two
set-screws. The block is then mounted to a bracket (such as model
SMB300), or directly to a machine frame with two #6 screws. Block
model SMB250C holds an LR & PT250 together to converge at ap-
proximately 1/2 inch ahead of the block.
L4 lens L16 lens
The LR/PT400 pair is often used at close range with optional AP400 aperture
assemblies to create a very small and well-dened effective beam for resolv-
ing small proles, increasing sensing repeatability, or easing response time
requirements.
Aperture model
AP400-010
AP400-015
AP400-040
AP400-030R
LR200 & PT200 LR250 & PT250 LR300 & PT300 LR400 & PT400
Temp. range: -40 to +100°C
Housing material: black Delrin®
Temp. range: -40 to +100°C
Housing material: black Delrin®
Temp. range: -40 to +80°C
Housing material: black VALOX®
Temp. range: -40 to +100°C
Housing material: anod. aluminum
AP400 apertures
Excess Gain
Models/Dimensions
ALL MODELS
Range: 8 feet (2,4m)
Beam: infrared, 880nm
Effective Beam:
0.14 inch (3,6mm) dia.
PT models are receivers
LR models are emitters
SMB250 SMB250C
LR & PT300: this is a miniature right-angle design which is mounted
in place using two #4 screws. This pair uses a very exible, low-prole
2-wire cable. Despite their small size, the optical performance of the
LR/PT300 is equal to the other remote sensor pairs.
LR400 & PT400: the 3/8 inch (9,5mm) diameter threaded barrel de-
sign makes the LR/PT400 the most versatile and most popular remote
opposed sensor pair. They are easily mounted through clearance holes
using the jam nuts which are supplied. They may be used with optional
L4 or L16 lenses for extended range and/or higher excess gain. The
addition of an L4 lens on both the LR and PT400 will increase their
range from 8 feet to 40 feet and increase the excess gain at any distance
by a factor of 25X. A pair of L16 lenses will increase available excess
gain by a factor of 250X.
Aperture size
.010" dia.
.015" dia.
.040" dia.
.030" x .125"
Sensors are epoxy-encapsulated and optics are hermetically sealed. Cables are 6 -1/2 feet (2m) long. 30-foot (9m) cables available by special
order.
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