Axis; Tribrach Leveling Screw - Horizon Fitness HTS-580 Series Operation Manual

12.10 Parallel between Line of Sight and Emitting
Photoelectric Axis
Inspection
1. Set the reflector 50m from the instrument.
2. Sight the center of the reflector prism with reticle.
3. Power on and enter Distance Measurement Mode. Press MEAS to measure.
Rotate the Horzontal Tangent Screw and Vertical Tangent Screw, to do electric
collimation and make the light route of EDM unblocked. In the bight zone find the
center of emiting photoelectric axis.
4. Check whether the center of reticle coincides with the center of emiting
photoelectric axis. If so, the instrument is up to grade.
Adjustment
If there is great difference between the center of reticle and the center of
emiting photoelectric axis the instrument needs repair.

12.11 Tribrach Leveling Screw

If the leveling screw becomes loose adjust the two adjusting screws in the
leveling screw to tighten appropriately.
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