Attachment And Detachment Of Tribrach - Pentax W-821NX Basic Instruction Manual

[Target sighting by manual focus]
Loosen the telescope clamp and horizontal clamp screws.
Å
Point the telescope at the target using a collimator.
Ç
Tighten the above two screws.
É
Adjust the eyepiece.
Ñ
Look through the telescope and then rotate the Focus ring and stop it where the target
Ö
can be seen clearly and the target image does not move in relation to reticle even if your
eye is vertically and horizontally moved.
Aligh the reticle accurately on the target using telescope and horizontal tangent screws.
Ü
• The Focus ring rotation "clockwise" makes it possible to focus on closer objects and
"counter clock wise" will focus on further objects.

3.6 Attachment and detachment of tribrach

The tribrach of W-821NX, W-822NX, W-823NX, and W-825NX are detachable from the instrument
if required when replacing the instrument with a target or unit prism for example.
[Detachment]
First loosen the recessed screw with a screwdriver, then rotate the locking knob until the arrow
points upward, and lift the instrument up.
[Attachment]
Mount the instrument on the tribrach with the guide marks coinciding, and rotate the locking
knob until the arrow points downward. The guide and guide mark must be fitted to attach the
instrument. When the tribrach does not need to be attached or detached or instrument is to be
transported, tighten the recessed screw with a screwdriver to fix the locking knob.
Collimator
Focus ring
28
Target
Collimator
Target sighting