Adjusting For Closure - Topcon DL-501 Instruction Manual

14.3

Adjusting for Closure

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. CALCULATION FUNCTIONS
D b l e - r u n d i s c r e p a n c y
d H
R e l a t i v e h e i g h t
G o
R e t u r n
ADJUST FIXEDP
A d j . m e t h o d
F i x e d p t r e c : Y e s
M e a s p t . r e c : N o
I S p t r e c
When "Weighted" selected
A d j . m e t h o d
A d d t o
F i x e d p t r e c : Y e s
M e a s p t . r e c : N o
I S p t r e c
When "Linear" selected
- 0 . 6 0 m m
1 2 . 4 3 7 0 8 m
- 1 2 . 4 3 6 4 8 m
O K
: W e i g h t e d
: N o
O K
: L i n e a r
: F i x e d p t
: N o
O K
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