Banner Home Safety Product PBT46U User Manual

Plastic Fiber Optic Assembly model PBT46U  
.04" diameter bifurcated fiber with threaded sensing end  
PBT46U  
p/n 25967  
Description  
Model PBT46U is a bifurcated plastic fiber optic assembly with an M6 x  
0,75mm threaded nickel plated brass sensing end.  
Threaded sensing end  
The PBT46U operates in the diffuse sensing mode. Sensing light is transmit-  
ted and received through the threaded sensing end. Objects are detected by  
the light they reflect back through the sensing end. Fiber core diameter is  
.04 inch.  
The PBT46U may be used with plastic fiber optic sensors from the following  
Banner sensor families: D12, OMNI-BEAM, MAXI-BEAM, VALU-BEAM, Q45, Q19, PC44, MINI-BEAM, and  
ECONO-BEAM. See page 2 for further information.  
Additional Specifications  
SENSING RANGE: Afunction of the sensor. For further information, see the  
CHEMICAL RESISTANCE: The acrylic core of the monofilament opti-  
cal fiber will be damaged by contact with acids, strong bases (alkalis) and  
solvents. The polyethylene jacket will protect the fiber from most chemical  
environments. However, materials may migrate through the jacket with long  
term exposure. Samples of fiber optic material are available from Banner for  
testing and evaluation.  
data sheet packed with the sensor, or refer to the Banner product catalog.  
TEMPERATURE EXTREMES: Temperatures below -30°C will cause  
embrittlement of the plastic materials but will not cause transmission loss.  
Temperatures above +70°C will cause both transmission loss and fiber  
shrinkage.  
MINIMUM BEND RADIUS OF PLASTIC FIBER: 1.0 inch (25 mm)  
REPEATBENDING/FLEXING: Lifeexpectancyofplasticberopticcable  
is in excess of one million cycles at bend radii of no less than the minimum  
(stated at right) and a bend of 90 degrees or less. Avoid stress at the point where  
the cable enters the sensor ("control end") and at the sensing end tip. Coiled  
plastic fiberoptic assemblies are recommended for any application requiring  
reciprocating fiber motion.  
CONSTRUCTION:  
OPTICAL FIBER: acrylic monofilament  
PROTECTIVE JACKET: black polyethylene  
THREADED END TIP and hardware: nickel plated brass  
OPERATING TEMPERATURE: -30 to +70°C (-20 to +158°F).  
Fiber Cutting Information  
This Banner plastic fiber is designed to be cut by the customer to the length required for the ap-  
plication. To facilitate cutting, a Banner model PFC-1 cutting device is supplied with this  
fiber. Cut the fiber as follows:  
PFC-1 Cutting Device  
1) Locate the "control end" of the fiber (the unfinished end). Determine the length  
of fiber required for the application. At the control end of the fiber, separate the two  
fibers. Lift the top (blade) of the cutter to open the cutting ports. Insert one of the  
control ends through one of the four large cutting ports on the PFC-1 cutter so that the  
excess fiber protrudes from the back of the cutter.  
2) Double-check the fiber length, and close the cutter until the fiber is cut. Using a differ
cutting port, cut the second control end to the same length as the first. Separate the cut e
length of 2 to 3 inches to allow proper attachment to the sensor.  
3) Gently wipe the cut ends of the fiber with a clean, dry cloth to remove any contamination.  
Do not use solvents or abrasives on any exposed optical fiber. Do not use a cutting port more than once. The blade may tend to dull after one cut.  
Printed in USA p/n 03432L4B  
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