36
5.4 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 (with prism)
(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 (with reflective sheet)
(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.
Summary of Contents for LPG-300 Series
Page 1: ...Basic Instruction Manual Total Station LGP 300 series LGP 302N LGP 305N TI Asahi Co Ltd...
Page 2: ...2...
Page 59: ...42...
Page 63: ...46...
