Table of Contents
Advertisement
4
Centering the mercury lamp housing
The mercury burner emits the light by means of discharge produced when
a current is supplied across electrodes. Therefore, the electrode positions
must be adjusted by replacing the burner, etc. This operation to adjust the
electrode positions is called the centering of the mercury burner.
The centering is not necessary for the light guide illumination system
(U-HGLGPS).
The centering of the mercury burner is recommended after the burner
is replaced or when the unevenness is noticed in the brightness of the
observed image.
1
Set the main switch to (ON).
Wait until the arc image stabilizes (5 to 10 minutes after
NOTE
ignition) before centering.
2
Engage the light shielding plate of the filter slider to block the
illumination light.
3
Use the observation light path selection knob to set the BF light path.
4
Engage the 10X objective in the light path, place the centering target
U-CST on the stage with the cross line side facing up, and align the
center of the concentric circles of the U-CST with the center of field
of view.
U-CST can be substituted with white paper, etc.
TIP
5
Using the objective selection button and rotate the revolving nosepiece
to engage the position without the objective (remove objective cap)
in the light path.
MX63/MX63L
U-CST
73
73
Advertisement
Table of Contents
