e-survey E3L, Руководство пользователя

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SHANGHAI ESURVEY GNSS CO., LTD.
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9. Turn the three foot screws on the instrument base to make the laser point overlap
with the cross mark target on the ground.
10. Horizontally rotate the instrument 180°, make fine adjustment of two screws by
using a calibration pin, moving the cross mark target on the ground half distance
toward the laser point.
There are totally three screws, and the one shown in the following figure may not be
adjusted by using a calibration pin:
11. Repeat step 9 and 10 until the cross mark target on the ground always overlaps
with the laser point when the instrument is turned to any direction.
7.6 Vertical Line of the Telescope Reticle
If the vertical line of the reticle is not perpendicular to the horizontal axis of the telescope,
correction is required (because one point on the vertical line may be used to collimate the
target for horizontal angle measurement or for vertical staking).
To do checking and correction for the vertical line of the telescope reticle, do the following:
1. Set the instrument on a tripod and precisely level it.
2. Set a point A at 50 m away from the instrument.
3. Collimate the telescope of the instrument to point A, turn the vertical inching hand
wheel, and observe if point A moves along the vertical line of the reticle:
o
If it does, no correction is required.
o
If not, proceed to the next step.
4. Turn the protective cover of the reticle counterclockwise, and remove the cover to
expose the four screws fixing the eyepiece.
5. Use a cross screwdriver to slightly loosen the four screws fixing the reticle.