Aloha, Norman:
You are correct the level bubble on the tribrach is out of calibration. Received my Seco #2002 Tribrach calibration gizmo and calibrated the tribrach's level bubble! No more shifting from the point after the auto leveling/compensation routine!
"It is likely that the level bubble on the tribrach is off. That would cause you to have to have to adjust the tribrach screws quite a bit during the electronic levelling process that preceeds the compensation process, which would cause the cross hairs to be moved of the point. Next time you perform the instrument set up look at the tribrach level bubble after you have completed the compensation. If the bubble is off center that is your problem."
John, the laser tribrach has no adjustment screws. I now have an expensive laser pointer 😛
Thank you both for your help!:-)
I just use the vial bubble on the instrument to peg the bullseye on the tribrach, no need for "extra toys":-)
-JD-
