Total Station Manual
3.4 The verticality of collimation axis and horizontal axis(2C)
1. Set a target A in about 100m away, and make sure the vertical angle of the target
is within ± 3 °. Precisely level the instrument and switch on it.
2. Make the telescope focused on target A in face left, and read the horizontal
angle.
For example: horizontal Angle L = 10°13 '10".
3. Loosen the vertical and horizontal brake hand wheel, turn the telescope, rotate
the alidade to face right and focus on the same target A. Before aiming please
tighten the horizontal and vertical brake hand wheel and read the horizontal
angle.
For example: level Angle R = 190°13 '40".
4. 2 C = L-(R ±180 °) = -30 "≥±20, need to calibrate.
1. Use the horizontal micrometer hand wheel to adjust the horizontal angle to the
right reading which has eliminated the C.
R + C = 190°13 '40 "-15 "= 190°13' 25"
2. Take down the reticle bed cover between the telescope eyepieces and focusing
hand wheel, adjust the calibration screw of the crosshair on the left and right.
First, loosen the screw on one side, and screw up the screw on the other side,
move the reticle and focus on target A.
3. Repeat the test Steps, calibrate it to | 2 C | < 10.
4. Tighten the calibration screws, put the protective cover back.
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