Topcon GM-100 Series User Manual

81
19.TOPOGRAPHY OBSERVATION
In topography observation, the instrument observes each target point once, clockwise from the backsight
direction and record the observed data. It is also possible to conduct topography RL observation which
observes the target point once from each of the "Right" and the "Left" of the scope.
The flow of topography observation is as follows:
Observation
setting
Sets a measurement pattern, and Yes or No for topography RL
observation and collimation point registration.
↓
Instrument station
setting
↓
Backsight point
setting
Sets a backsight point coordinate when setting "Yes" for
"Backsight distance check" in the observation setting.
↓
Collimation point
registering
Registers a collimation point when setting "Yes" for "Pre-
entered point registration" in the observation setting.
↓
Observation
↓
Observation end
Topography observation
Order of observation
(1) R1
(2) R2
(3) R3
Topography RL observation
Order of observation
(1) R1
(2) L1
(3) R2
(4) L2
(5) R3
(6) L3
Target point
T1 (backsight direction)
Target point
T1 (backsight direction)
Instrument
station
S
Instrument
station
S
T2
T3
(1)R1
(2)R2
(3)R3
(1)R1
(2)L1
(3)L2
(4)R2
(5)R3
(4)L3
T2
T3

Topcon GM-100 Series Specifications

General

Brand	Topcon
Model	GM-100 Series
Category	Measuring Instruments
Language	English