I. Setout measurement

Setout measurement is used to Setout the required point. The difference between the previously inputted data to the instrument（the Setout data）and the measured value can be displayed by measuring the horizontal angle, distance or coordinates of the sighted point.

The horizontal angle difference and distance difference are calculated and displayed using the following formulas:

Horizontal angle difference

dHA =Horizontal angle of Setout data – measured horizontal angle

Distance difference

Distance Displayed item

SD: S-O SD=measured slope distance – slope distance of Setout data

HD: S-O HD=measured horizontal distance – horizontal distance of Setout data

VD: S-O VD=measured height difference – height difference of Setout data

There are the following steps：

1． Setting occupied point.

2． Setting backsight point and azimuth angle.

3． Input layout point coordinates, and then starts.

NOTE:

$1· Setout data can be input in various modes: SD, HD, VD, coordinates and REM measurement.

$1· EDM settings could be set in this mode.

$11 8.1 Preparation

Setting the Grid Scale

Calculation Formula

1）Elevation factor

Elevation factor=R/(R+ELEV)

R：The average radius of the earth

ELEV：The elevation above the mean sea level

2）Scale factor:

Scale factor in the surveying station

3）Grid factor

Grid factor = Elevation factor×Scale factor

Distance calculation

1）Grid distance

HDg=HD×Grid factor

HDg：Grid distance

HD：Ground distance

2）Ground distance

HD= HDg/ Grid factor

Operation Steps

Key

Display

Press Menu, and then press [2](Setout).

-- Setout—
1. Setup Station	▲
2. Setup BSS
3. Setout
4. Add Coordinate
5. Intersection
6. Input Coordinate	▼

2) In Setout menu, press [7](Grid Scale)

[7]

Grid Scale
=1.000000
Altura:				M
Scale:		1.000000


B.S.	Clear		Enter

2)input Elevation, press [F4](ENT)

Input Elevation

[F4]

Grid Scale
=0.999969
Altura:		200		M
Scale:		1.000000


B.S.	Clear		Enter

)Input Scale Factor in the same way, press [F4](ENT)

Input Scale Factor

[F4]

Grid Scale
=0.999969
Altura:		200		M
Scale:		0.999900


B.S.	Clear		Enter

$11 8.2 Coordinates Setout Measurement

After setting coordinates for the point to be Setout, the instrument calculates the Setout HA and HD. By selecting the HA and then the HD Setout functions, the required coordinate location can be Setout.

To get the Z coordinate, attach the target to a pole etc, with the same target height

The following methods can be selected to launch a Setout:

$1· Direct input of coordinates values

· Obtaining points from internal memory by point number

8.2.1 Direct input of coordinate values

Operation Steps

Key

Display

1) Press Menu, and then press [2] (Setout).

[Menu]

[2]

-- Setout—
1. Setup Station	▲
2. Setup BSS
3. Setout
4. Add Coordinate
5. Intersection
6. Input Coordinate	▼

2) In Setout Menu, press [3](Setout)

[3]


Input point for setout
N:
E:
Z:				m

B.S:	Clear	Search	Enter

3) Input point coordinates that you need to setout.

Input coordinates


Input point for setout
N:		100.000			m
E:		100.000
Z:		10.000

B.S:	Clear		Search	Enter

4) Press [ENT],

The system calculates out the angle that the lens should be rotated, horizontal distance HD, then you can select one of two setout mode – distance or coordinate

Calculate-Setout
HR:	90°10’20”
HD:	156.205


Dist	Coord

5) Press [F2] (Coor). Coordinate setout mode *

[F2]

HR:	104°34’20”
dHR:	-3°14’23”
dN:			m
dE:
dZ:
Meas	Mode	T.H.	Next

6) Collimate prism and press [F1] (Meas) to start to measure

[F1]

HR:	104°34’20”
dHR:	-3°14’23”
dN:	1.233		m
dE:	-1.123
dZ:	0.034
Meas	Mode	T.H.	Next

7) When the display value dHR, dN, dE and dZ are equal to 0,the layout point is established

HR:	104°34’20”
dHR:	-0°00’00”
dN:	0.000		m
dE:	0.000
dZ:	0.000
Meas	Mode	T.H.	Next

8) Press [F4] (Next) to set next layout point

[F4]


Input point for setout
N:
E:
Z:				m

B.S:	Clear	Search	Enter

*Press [F3] (T.H.) to input target height again.

8.2.2 Obtaining point from internal memory

Operation Steps

Key

Display

1) Press Menu, and then press [2] (Setout).

[Menu]

[2]

-- Setout—
1. Setup Station	▲
2. Setup BSS
3. Setout
4. Add Coordinate
5. Intersection
6. Input Coordinate	▼

2) In Setout Menu, press [3](Setout)

[3]


Input point for setout
N:
E:
Z:				m

B.S:	Clear	Search	Enter

3) If the point is in the current coordinate file then you can press [F3] (Search) to call the coordinate.

Input coordinates



Nome Pt.



B.S:	Alph.	Clear

4) If you can remember the point then you input the pointname, else you can press directly [ENT] and you will see a list of the points stored.

[ENT]

Pt.(ABC.COO)1/6
B001: -0.767, -0.993


C004
Begin	End	Read	select

The point list will appear. ) Select the desired file using [▲] or [▼], then press [F4](Select) to get the coordinate.

[▲] or [▼]

[F4]


Input point for setout
N:		-1.912
E:		-4.046
Z:		2.43			m

B.S:	Clear		Search	Enter

6) Press [ENT],

The system calculates out the angle that the lens should be rotated, horizontal distance HD, then you can select one of two setout mode – distance or coordinate

[ENT]

Calculate-Setout
HR:	90°10’20”
HD:	156.205


Dist	Coord

7) Press [F2] (Coor). Coordinate setout mode*

[F2]

HR:	104°34’20”
dHR:	-3°14’23”
dN:			m
dE:
dZ:
Meas	Mode	T.H.	Next

8) Collimate prism and press [F1] (Meas) to start to measure

[F1]

HR:	104°34’20”
dHR:	-3°14’23”
dN:	1.233		m
dE:	-1.123
dZ:	0.034
Meas	Mode	T.H.	Next

9) When the display value dHR, dN, dE and dZ are equal to 0,the layout point is established

HR:	104°34’20”
dHR:	-0°00’00”
dN:	0.000		m
dE:	0.000
dZ:	0.000
Meas	Mode	T.H.	Next

10) Press [F4] (Next) to set next layout point

[F4]


Input point for setout
N:
E:
Z:				m

B.S:	Clear	Search	Enter

*Press [F3] (T.H.) to input target height again.

$11 8.3 Intersection

Intersection program is used to determine the coordinates of an instrument station (unknown) by measuring several known points. Coordinate data in memory could be read.

Coordinates of known points: Xi, Yi, Zi

Measured HA: Hi

Measured VA: Vi

Measured distance: Di

Output

Coordinate of occupied data: Xo, Yo, Zo

Note:

$1· All N, E, Z value or only Z value of the occupied point is calculated by measuring known points.

$1· Coordinate intersection measurement overwrites the N, E, Z data of the instrument station.

$1· Inputted known coordinate data and calculated data could be recorded in the current coordinate file.

$1· Max number of known points is 5

8.3.1 Coordinate Intersection

Operation Steps

Key

Display

1) Press [MENU], and then press [2] (Setout).

[Menu]

[2]

-- Setout—
1. Setup Station	▲
2. Setup BSS
3. Setout
4. Add Coordinate
5. Intersection
6. Input Coordinate	▼

2) In Setout Menu, press [5](Intersection)

[5]

Intersection-Pt.1
>Pt.name:
Code:
T.H:	1.900
	*[]file list**
Input	Search	Info.	Read

3) If the point is in the current coordinate file then you can press [F3] (Search) to call the coordinate.

Input coordinates



Nome Pt.



B.S:	Alph.	Clear

4) If you can remember the point then you input the point name, else you can press directly [F4](Reas) and you will see a list of the points stored.

[F4]

Pt.(ABC.COO)1/6
B001: -0.767, -0.993


C004
Begin	End	Read	select

The point list will appear. ) Select the desired file using [▲] or [▼], then press [F4](Select) to get the coordinate.

[▲] or [▼]

[F4]

Intersection-Pt.1
Pt.name: C002
Code:
>T.H:	1.900
	*[]file list**
Input		Info.	Read

6) Press [F1] (Input), to change the prism height and the instrument height.

Press [ENT] to confirm.

[F1]

[ENT]


Input I.H. &T.H.
I.H.:		1.500
T.H.:		1.900			m

B.S.	Clear		Save	Enter

7) Press [ENT].

Then you can select one of two setout mode – distance or angle

Intersection-Pt.1
Vz:	90°10’20”
HR:	156.205
SD:

		Angle	Dist

8) I.E. Using Distance setout mode.

Collimate the prism and press [F4] (Dist).

Collimate prism

[F4]

Intersection-Pt.1
Vz:	90°10’20”
HR:	156.205
SD:	4.453	m
T.H.:	1.900
Next

9) EDM will start and obtaining the slope distance. After measuring distance, press [F1](Next) to measure the next point.

[F1]

Intersection-Pt.2
>Pt.name:
Code:
T.H:	1.900
	*[]file list**
Input	Search	Info.	Read

10)Repeat procedure 3 ~ 9 at least one more time*

if you have measured two or more distance the prompt “Calc” will appear

Intersection-Pt.2
Vz:	90°10’20”
HR:	156.205
SD:	4.453	m
T.H.:	1.900
Next		Calc

11) Press [F4] (Calc) to obtain the coordinates of instrument station.

The result of calculated instrument station is shown as the picture on the right.

This is the error of the station coordinates

[F4]

Intersection-result
dN:	0.000
dE:	0.004		m
dZ:	0.006
MdHD:	0.005
Set ST	SetA	Rec	dCoor

[F4]

Intersection-result

N:	0.000		m
E:	0.004
Z:	0.006

Set ST	SetA	Rec	Coor

13) Press [F1](SetST) to set this station as actual

[F1]

Intersection-result

N:	0.000		m
E:	0.004
Z:	0.006

	SetA	Rec	Coor

14) Press [F2](SetA) to setup the Azimuth of the instrument.

[F2]

Intersection-result

N:	0.000		m
E:	0.004
Z:	0.006

		Rec	Coor

15) Press [F3](Rec) to save coordinates to current measurement file

[F3]

Intersection-result

N:	0.000	m
E:	0.004
Z:	0.006

		Coor

16)Press ESC to return to Setout menu

*Press [F3] (T.H.) to input target height again.

8.3.2 Precautions when performing intersection

In some cases it is impossible to calculate the coordinates of occupied point if the unknown point and three or more known points are arranged on the edge of a single circle. It is also impossible to calculate if the included angle between the known points is too small. Be careful for the points can easily be aligned on the edge of a single circle.

An arrangement such as shown below is desirable.

It is sometimes impossible to perform a correct calculation such as shown below.

When they are on the edge of a single circle, take one of the following methods: