Olympus VISERA OTV-S7V, Инструкция по эксплуатации, Страница: 62 / 216

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Chapter 4 Inspection
VISERA VIDEO SYSTEM CENTER OTV-S7V
Use light control cable MAJ-944, which is a standard
accessory of the OTV-S7V. Other cables cannot ensure
optimum performance of the automatic brightness control
function.
2.
Operate the light source according to the directions given in the light
source’s instruction manual. Confirm that the light source’s AUTO/MANUAL
brightness selector is AUTO and the brightness level is “3”.
When using the CLV-S40, its brightness level “0” is equal to
the brightness level “3”.
3.
Move the distal end of the endoscope between 1 and 3 cm from your palm.
Confirm that the brightness of the image on the video monitor remains
constant while the light emitted from the distal end of the endoscope
changes in your palm.
When using the ENF-V, CYF-V/VA or HYF-V, inspect the OTV-S7V as follows:
4.
Hold the distal end of the endoscope 3 cm from your palm. Use a piece of
gauze, etc. to prevent the endoscope’s distal end and your palm from being
exposed to extraneous light. View the image on the video monitor.
5.
Confirm that the image on the video monitor brightens or darkens when the
light source’s brightness level is changed.
• In combination with some endoscope models, the space
between the distal end of the endoscope and your palm in
which the automatic brightness control function is available
will be smaller than 1 – 3 cm.
• When using the ENF-V, CYF-V/VA or HYF-V, the exposure
level indicator on the OTV-S7V goes out. Brightness control
is available from the light source.
Inspecting the shutter function (camera head, LTF-V3 or
A500**A series)
1.
According to the distance between the distal end of the endoscope and the
object, depress the exposure level switch to select an appropriate exposure
level.