Chapter 4 Assembly
93
Attaching and replacing phase plates
Figure 4-7 Special tool and phase plate
Figure 4-8 Attaching/replacing the phase plate
Phase plate attachment
A special tool is included with TI-T-BPH Eyepiece
Base Unit. Use this special tool when attaching or
replacing the phase plate.
1. Align the holes on the phase plate to the two
pins on the end of the special tool, and attach
the phase plate to the tool.
The phase plate will be attached magnetically to
the special tool.
2. Select position A, B, or C by rotating the
turret on the external phase contrast
eyepiece base unit.
3. Insert the special tool and the phase plate
into the optical path hole on the top of the
eyepiece base unit. Screw in the phase plate
into the socket on the turret.
4. Remove the special tool and affix the
provided label below the indication on the
front of the turret.
5. Repeat steps 1 thru 4 for positions A thru C,
as necessary.
Phase plate replacement
1. Select position A, B, or C by rotating the
turret on the external phase contrast
eyepiece base unit.
2. Insert the special tool into the optical path
hole on the eyepiece base unit. Align the two
pins on the special tool to the holes on the
phase plate.
3. Remove the phase plate from the socket by
rotating the tool counterclockwise.
4. Remove the phase plate by pulling out the
special tool.
The phase plate is attached magnetically to the
special tool, and can be retrieved by lifting the
tool.
5. Attach other phase plate as described above
in “Phase plate attachment.”
Special tool
Phase plate
Special tool
Phase plate
Turret
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