GE Swing Prism - NDT Rigid Borescope Operations Manual download pdf (Page 9)

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To effectively perform an inspection, you must be familiar with the internal design of the appli-

cation you are inspecting and also be familiar with the operation of the borescope. Inside the

application your vision will be limited to the scope's field-of-view, so you must be able to visual-

ize the location of the scope tip and its orientation to the area to be inspected.

Holding the Borescope

Hold the scope body in one hand in a way that is comfortable and allows you to comfortably

look into the eyepiece. The pistol grip can be removed if desired by firmly pushing it forward.

Inserting the Borescope

Before inserting the scope into an application, be sure to check to see that the scope's path is

not blocked. Slowly insert the scope shaft into the equipment to be inspected and observe the

view through the eyepiece. Rotate the shaft if necessary to get the best viewing angle.

CAUTION: Do not insert the borescope into moving machinery or a live electrical environ-

ment.

CAUTION: Never apply lateral force to the shaft when inserted into equipment. Any dents or

bends in the shaft may break internal lenses or degrade the focus of the optical train.

Integral Zoom Function

If your scope is equipped with integral zoom, you can magnify the image up to 2X by rotat-

ing the zoom control knob counter-clockwise. The zoom control knob provides a continuous

increase in magnification of the entire field of view throughout its rotation.

Rotary Scan

You can see a full 360

around the scope tip by using the rotary scan knob to rotate the shaft

clockwise and then counter-clockwise. A small nipple on the knob enables you to feel when the

tip optics are pointed up without taking your eye away from the eyepiece.

Swing Prism Control

If your scope is equipped with the swing prism feature, you can also adjust the scope's

direction-of-view to see more of an object's length than is visible in the scope's optical field-of

-view. This knob swings the entire field of view, similar to a person

turning their head to see what is beyond their peripheral vision. The

direction of view can be varied from a centerline of 55

to 115

Withdrawing the Borescope

Take care when removing the scope from equipment that the shaft is pulled straight out and

not inadvertently bent.

Operation

55º

115º

Distal Swing Prism Feature

Industrial Borescope 9

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GE Swing Prism - NDT Rigid Borescope Operations Manual Page 9