COMPONENT DESIGN
The length of most standard fiber optic components is 36”; although special applications can be developed which call for custom lengths. The standard configurations for all fiber optic photoelectric light guides are single (for opposed applications) or dual (bifurcated) for reflective applications.

The common end (bottom leg of a "Y") of a bifurcated light guide is the leg pointed at the object being sensed, and is called the distal end. Distal end configurations for single and bifurcated light guides are typically threaded to aid in mounting the end to an alignment fixture. Because fiber optic light guides are typically used in space constrained areas, a broad range of distal end configurations are offered. Straight, 45 degree, and 90 degree bends in the distal end are standard.

The active fiber diameter of most light guides is .125 with .062 and.156 offered as options. The fiber configuration is typically round. Slit (rectangle) shapes are also specified.

Lenses are sometimes provided to help collect light, which extends the effective range of the sensing component.

PVC covered monocoil, and SS interlock sheathing are standard sheathing types.

Because the fiber optic component is mated to different sensor designs, a selection of proximal end (the leg(s) attaching to the sensor are known as proximal end(s)) tips are available,

FTI manufactures components for after-market replacement or initial installation of all major sensor manufacturers, including Omron, SunX, Tritronic, Allen Bradley, Cutler Hammer, ABB, and others.

Here is a summary of FTI's photoelectric control cable product specifications:

• Fiber diameter .0018 (30 micron), .002 (50 microns), .0028 (70 micron) (other diameters available upon request)
• Core-to-clad ratio 90% of core and 10% of clad nominal
• Temperature range -50°F (-45°C) to 525°F (275°C). High temperature of 825°F (440°C) available
• Minimum bend radius 2.5 x sheathing O.D.
• Chemical stability - transmission is unaffected by water, gasoline, engine oil, sulfuric acid and other organic acids
• Numerical aperture .25, .37, .55, .66, and .83
• Acceptance angle from 17° to 160°
• Length - up to 60 feet
• Active bundle diameters up to 2.0” (25.4 mm
• End-fittings - stainless steel, aluminum, brass or plastic
• Sheathing - pvc/monocoil, flexible pvc (no monocoil), flexible interlocking stainless steel, silicone and neoprene (fluorocarbon rubber and hermetically sealed teflon
  available upon request)
• Tapers and rod
  Clad white light carrying rigid optical rod
  Coherent imaging fused rod, maximum fiber packing results in optimum output and image transfer.
  Taper to help manage light collection or focus.

Below are descriptions of 20 of the most popular models. If you can't find what you need in the list below, contact Tim Beeman to describe the component you would like to order.

Our P/N Matrix in the tables below describe each pictured configuration.