Field test procedure for Auto / Optical Level
This description is suitable for semi-skilled person. How to check Auto / Optical Level for its levelling error. The procedure described is two peg test method. We have taken GOL 32D of Bosch make in this test procedure. Items required for this test are Two levelling rod, one optical level and one tripod stand. Tripod stand has to be very sturdy and should be able to stay firm without shaking. Place the levelling rod / scale at 30 meters apart…