SLT12 User Manual
195
2. After the power is turned on, the vertical disk indicator is zeroed, the vertical hand wheel is
tightened, and the instrument displays the value of the current vertical angle at which the
telescope points.
3. Slowly turn the foot spiral X in one direction to about 10mm circumferential distance, the
vertical angle displayed by the corresponding change to the disappearance of the
"compensation beyond!" message, indicating that the instrument vertical axis tilt has been
greater than 3′, beyond the design range of the vertical disk compensator. When the reverse
rotation of the foot spiral recovery, the instrument and reappear vertical angle, in the critical
position can be repeatedly tested to see its change, that the vertical disk compensator work
properly.
17.5.2 Adjust
When the instrument compensation is found to be out of order or abnormal, it should be sent
to the factory for repair.
17.6 Vertical Index Difference (i-angle) and Vertical Index Zero
Point Setting
17.6.1 Check
1. After placing and leveling the instrument, turn on the machine, shine the telescope on any
clear target A, and get the vertical angle disk left reading L.
2. Turn the telescope and the illumination part and then aim at A to get the right reading of the
vertical angle disk R.
3. If the vertical angle zenith is 0°, then i = (L + R - 360°) / 2, if the vertical angle horizontal
is 0.
Then i = (L + R - 180°)/2 or (L + R - 540°)/2.
4. If
｜
I
｜
≥10″, the zero point of the vertical disk indicator should be reset.
5. The operation method is as follows.
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