Collimation for Topcon GTS-900/GPT-9000
  1. Setup instrument on a stable tripod and position 360 degree prism approximately level with instrument 300ft away.
  2. Level the instrument precisely, then enter the ADJUST mode press touch screen.
  3. Select the VERTICAL 0 ADJUST mode on the touch screen.
  4. Sight the prism precisely on FACE 1 vertical 90 degree side of instrument. Press SET on touch screen.
  5. Press the STAR KEY on the keyboard to use the self invert key.

  6. CAUTION ! The instrument will rotate on H & V axis.
  7. Inspect the sighting position, adjust motion knobs to center reticule to target. Then press the SET button on touch screen.
  8. Adjust tracking axis of instrument after adjusting the
    VERTICAL 0 .
  9. Precisely sight the prism at 300 ft then enter press the MEAS button on touch screen.
  10. Press the TURN key when measuring is completed.

  11. CAUTION! The instrument will Shelf Invert and Rotate to Rear Face
  12. Precisely sight the prism at 300ft and press the MEAS button on the touch screen.
  13. SET the correction values then EXIT.