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The initial setting operation includes fixing the theodolite on a tripod, along with approximate levelling and centering over the station mark.For setting up the instrument, the tripod is placed over the station with its legs widely spread so that the centre of the tripod head lies above the station point and its head approximately level (by eye estimation).
The Pennsylvania Department of General Services (DGS) is an agency of the U.S. state of Pennsylvania that supports the core operations of the Pennsylvania state government.
The level staff is placed with its foot on the point for which the level measurement is required. The telescope is rotated and focused until the level staff is plainly visible in the crosshairs. In the case of a tilting level, the fine level adjustment is made by an altitude screw, using a high accuracy bubble level fixed to the telescope.
Horizontal axis adjustment. The horizontal axis must be perpendicular to the vertical axis. Vertical circle index adjustment. The vertical circle must read zero when the line of collimation is horizontal. Adjustment of altitude level. The axis of altitude level must be parallel to the line of collimation. Collimation adjustment.
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Pages in category "State agencies of Pennsylvania" The following 44 pages are in this category, out of 44 total. This list may not reflect recent changes. ...
Mar. 8—WILKES-BARRE — Pennsylvania's total non-farm jobs were up 14,800 over the month to a record high of 6,129,900 — the sixth consecutive record high for Pennsylvania's jobs count. Jobs ...
Pennsylvania CareerLink is and has been composed of numerous partner agencies throughout the Commonwealth of Pennsylvania. because the Counties take bids on who provides Pennsylvania CareerLink service, the agencies which compose a particular Pennsylvania CareerLink may vary extensively from that of another. Further the agencies may vary within ...