IV. USE OF THE ENDOCHECK™ TEST SYSTEM
Qualitative Analysis of Fiber Light Cables with the EndoProjector ™
1. Turn the light source off.
2. Connect the fiber light cable to be inspected to the light source. Connect the other end to the
EndoProjector ™. Note that the EndoProjector™ has two (2) removable/screw-on adapters.
Depending on the type and brand of fiber cable being connected, both adapters may stay in
place, or one or both may need to be removed. Most common fiber cables found in a rigid
endoscopy environment can be connected using one of the adapters supplied.
3. Turn the light intensity output control on the light source to the minimum level, and turn on the
light source. Shine the output of the EndoProjector™ onto a flat surface like a wall. It may be
helpful to dim the ambient light level in the room for optimum viewing of the projected image.
4. Adjust the light intensity from the light source as desired.
5. While holding the fiber cable near the EndoProjector™, carefully slide the outside body of the
EndoProjector™ in or out to yield a sharply-focused image. When optimal focus is achieved,
the individual fibers of the fiber bundle will be visible. The distance from the surface onto
which the projected image is viewed, the position of the sliding outside body of
EndoProjector™, and the intensity of the light all play a role in focus and image quality. After a
bit of trial and error, the user will quickly become skilled at achieving optimal image quality and
focus.
Caution: The sliding outside body can come completely off the EndoProjector™.
Even though it is easily put back in place, care should be exercised to avoid removing
the body.
6. While observing the sharply-focused and optimally-sized image, an assessment may be made
as to the relative quality of the fiber cable. For instance, if approximately 50% of the fibers in
the bundle are broken, this will be readily apparent. The purpose of EndoProjector™ is not to
allow counting of individual fibers or to make a quantitative assessment of cable quality. It
allows a quick, visual, and intuitive analysis of relative cable quality.
7. If a quantitative analysis of the light source and cable using the light meter is desired, leave
the EndoProjector™ on the fiber cable and turn the light source intensity down. Otherwise, if
the inspection is complete, turn off the light source and disconnect all equipment.
Quantitative Analysis of Fiber Light Cable and Light Source with the Light Meter
1. Turn the light source off.
2. Connect the fiber light cable to be inspected to the light source. Connect the other end to the
EndoProjector ™. Note that the EndoProjector™ has two (2) removable/screw-on adapters.
Depending on the type and brand of fiber cable being connected, both adapters may stay in
place, or one or both may need to be removed. Most common fiber cables found in a rigid
endoscopy environment can be connected using one of the adapters supplied.
3. Turn on the light meter and select the highest range (50,000 lux.) Place the light meter’s
sensor on a flat, stable, horizontal surface, and install the light meter adapter onto it. Insert the
EndoProjector™ into the small opening on the top of the light meter adapter.
4. Turn the light intensity output control on the light source to the minimum level, and turn on the
light source.
5. Read the light intensity on the light meter. Various settings on the light source may require
changing ranges on the light meter.
Do not exceed the maximum range of the light meter
as damage to the light sensor can occur. The maximum allowable light input is 50,000
lux or 5,000 foot-candles. Note that readings on the 50,000 lux range must be multiplied
by 100. A reading of “500” on this range equals 500 x 100 = 50,000 lux. Never allow the
light meter reading to exceed “500” on the 50,000 lux scale.
6. This system may be used to compare known good components with suspected bad
components, and to establish benchmarks. See the “Applications” section for more
information on suggested uses.
7. Turn the light source and light meter off, and disconnect all equipment.
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