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5.8 EDM Optical Axis and the Telescope Sighting Axis
Error
It is necessary to check this error after the adjustment of telescope reticle
error.
1）Checking (For 350 series)
(1) Install the instrument at the tripod or a stable device and level it
accurately, then power on the instrument.
(2) Set a prism about 2m far away from the instrument.
(3) Aim at the prism center with telescope reticle.
(4) Enter EDM signal testing screen.
(5) Observe through eyepiece, turn the focusing knob until the red mark is
clear, if the deviation between mark and cross-hair is not over 1/5 of red mark
diameter, adjustment is unnecessary.
2）Checking (For W-1502N series)
(1) Install the instrument at the tripod or a stable device and level it
accurately, then power on the instrument.
(2) Set a reflective sheet about 5m-20m far away from the instrument.
(3) Aim at the sheet cross-mark with telescope reticle.
(4) Enter EDM signal testing screen.
(5) Observe the laser spot, if the laser spot coincides with the cross-mark of
reflective sheet, adjustment is unnecessary.
NOTE:
Laser radiation do not stare into beam.
3）Adjustment
If the instrument needs adjustment, please contact with our dealers.
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