Aiming And Focusing; Figure 5-4: Sensor Eyepiece And Reticle - Fluke Endurance Series User Manual

®
Endurance Series
Users Manual, Rev. 2.0, Jun 2020

5.4 Aiming and Focusing

Once you have the sensor in place, you need to aim and focus it on the target. To aim and focus the sensor,
complete the following:
•
Loosen the nuts or bolts of the mounting base. This can be either a factory-supplied accessory or
customer-supplied base.
•
Look through the eyepiece and position the sensor so the target is centered as much as possible in the
middle of the reticle. Note that the target appears upside down.
•
Turn the lens holder clockwise or counter-clockwise until the target is in focus. You can tell the lens is
focused correctly by moving your eye from side to side while looking through the eyepiece. The target
should not move with respect to the reticle. If it does, keep adjusting the focus until no apparent motion
is observed.
•
Check again to be sure the target is still centered and secure the mounting base. Procedure is complete.
In 1-color measurements, the target measurement area has to fill the complete measurement spot size.
When focusing the sensor, do not depend on the clarity of the image through the eyepiece to determine the
focus. Use the "move the eye" technique as described above. If the desired focus distance is known in advance,
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Figure 5-4: Sensor Eyepiece and Reticle

Sighting scope
Area to measure
(inside reticle)
the focusing can be conveniently done in the office environment before installation.
Target
Reticle
Note
Note