Topcon DL-501 - 14.3 Adjusting for Closure

63
14. CALCULATION FUNCTIONS
This function provides two methods for distributing closure error among points on route.
1. Press [ADJUST] in the results screen for
double-run discrepancy or closure error.
2. Select distribution method and elevation
record settings for each point type.

•What follows is an explanation of adjustment methods selected in the screen above.
Weighted: Total misclosure is distributed among points in differing amounts. Each adjustment is
weighted proportional to the length of that section.
Linear: Total misclosure is divided equally between all points of the selected point type(s).
• Fixed pt
Misclosure divided equally between all fixed point sections. MIsclosure alloted to a
particular section is then divided equally between the measurement point intervals
within that section.
• Meas pt
Misclosure divided equally between all measurement point sections.
14.3 Adjusting for Closure
OK
Dble-run discrepancy
dH -0.60mm
Relative height
Go 12.43708m
Return -12.43648m
FIXEDP
ADJUST
Adj.method :Weighted
Fixed pt rec:Yes
Meas pt. rec:No
IS pt rec :No
OK
When "Weighted" selected
Adj.method :Linear
Add to :Fixed pt
Fixed pt rec:Yes
Meas pt. rec:No
IS pt rec :No
OK
When "Linear" selected
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