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7-10
7 DATA COLLECTION
7.3 Data Collect Offset Measurement mode
This mode is useful when it is difficult to set up the prism directly, for example at the center of a tree.
Data Collect . Offset Measurement has two measuring methods.
zAngle offset measurement
zDistance offset measurement
zPlane offset measurement
zColumn offset measurement
7.3.1 Angle Offset Measurement
Place the prism at the same horizontal distance from the instrument as that of point A0 to measure.
When measuring coordinates of ground point A1 :Set the
instrument height / prism height.
When measuring coordinates of point A0 : Set the
instrument height only. (Set the prism height to 0 ).
Operating procedure Operation Display
1Press the [F3](MEAS) key and press the [F4]key
to get to the next soft key page. [F3]
[F4]
2Press the [F1](OFSET) key. [F1]
3Press the [F1](ANG.OFFSET) key. [F1]
4Collimate the prism. Collimate P
Prism P
Prism height
Instrument height
Occ.Point
When sighting to A0, you can select one of two
ways. One is to fix vertical angle to the prism
position even up down the telescope position, and
the other is to gear vertical angle to the up down
of telescope movement. In case following the
vertical angle to the movement of telescope, SD
(Slope Distance) and VD (Vertical Distance) will
be changed according to the movement of
telescope.
To set this option, refer to Chapter 16
“SELECTING MODE”.
PT#
PT-11
PCODE :TOPCON
R.HT : 1.200 m
INPUT SRCH MEAS ALL
PT#
PT-11
PCODE :TOPCON
R.HT : 1.200 m
VH *SD NEZ P1
OFSET PTL NP/P P2
OFFSET 1/2
F1:ANG. OFFSET
F2:DIST. OFFSET
F3:PLANE OFFSET P
OFFSET-MEASUREMENT
HR: 120°30'40"
HD: m
MEAS --- NP/P ---
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