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Topcon GPT-7502 User Manual

Topcon GPT-7502
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69
3 STANDARD MEASUREMENT MODE
3.3.3 Execution of Coordinate Measuring
Measure the coordinates by entering the instrument height and reflector height, coordinates of
unknown point will be measured directly.
When setting coordinate values of occupied point, see section 3.3.1“Setting Coordinate Values of
Occupied Point” .
When setting the instrument height and reflector height, see section 3.3.2“Setting of the Instrument
Height / Reflector(Prism) Height” .
The coordinates of the unknown point are calculated as shown below and displayed:
Coordinates of occupied point : (N
0
,E
0
,Z
0
)
Instrument height : INST.HT
Reflector height : R.HT
Vertical distance(Relative elevation) : z
Coordinates of the center of the reflector,
originated from the center point of the instrument : (n,e,z)
Coordinates of unknown point : (N
1
,E
1
,Z
1
)
N
1
=N
0
+n
E
1
=E
0
+e
Z
1
=Z
0
+INST.HT+z - R.HT
Confirm the angle measurement mode.
1 Set coordinates values of occupied point
and instrument/reflector height. *1)
2 Set the direction angle of known point A. *2)
3 Collimate the reflector.
4 Press the [ ] key.
Measuring starts.
*1) In case the coordinate of occupied point is not entered, (0,0,0) will be used as the default for the
occupied point.
The instrument height will be calculated as 0 when the instrument height is not entered.
The reflector height will be calculated as 0 when the reflector height is not set.
*2) Refer to section 3.1.3“Measuring from the Required Horizontal Angle” .
Origin (o, o, o)
Occupied point (No, Eo, Zo)
Center point of the instrument
(No, Eo, Zo+INST.HT)
Coordinates of the center of the reflector, originated from the center point of the instrument (n,e,z)
Unknown point
(N
1, E1, Z1)

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Topcon GPT-7502 Specifications

General IconGeneral
BrandTopcon
ModelGPT-7502
CategoryMeasuring Instruments
LanguageEnglish

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