User's Manual
Table Of Contents
- 1. Precautions for safety
- 2. Nomenclature
- 3. Preparation before measurement
- 4. Basic functions
- 5. Instrument settings
- 6. Measurement
- 7. Data management
- 8. Check and adjustment
- 9. Technical features
- 10. Kit components
- Appendix I: Atmospheric correction formula and chart
- Appendix II: Correction for refraction and earth curvature
- Appendix III: Technical drawing
- Limited warranty standard
- Environmental recycling
8.7. EDM optical axis and the telescope sighting axis error
It is necessary to check this error after the adjustment of telescope reticle error.
I. EDM optical axis check
1. Install the instrument at the tripod or a stable device and level it accurately, then turn on the instrument’s
power on.
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, see 5.3. Star settings.
5. Observe through eyepiece, turn the focusing knob until the read mark is clear, if the deviation between
mark and cross-hair is not over 1/5 of red mark diameter, adjustment is unnecessary.
II. Telescope sighting axis error check
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.
1. Enter EDM signal testing screen, see 5.3. Star settings
2. Observe the laser spot, if the laser spot coincides with the cross-mark of reflective sheet, adjustment is
unnecessary.
NOTE:
• Laser radiation—Avoid direct eye exposure.
• If the instrument needs adjustment, please contact your local dealer.