Applications Zoom20/30/35 Pro | 49
Next step • Either, press ALL to record measurements for a set out point.
• Or, press ESC to exit the application.
11.4 Resection
11.4.1 Starting Resection
Description Resection is an application used to determine the instruments position from measurements to known
points. A minimum of two known points and a maximum of 5, can be used to determine the position.
Access 1) Select Apps from the MAIN MENU.
2) Select RESEC from the Apps menu.
3) Complete application pre-settings. Refer to "10 Applications - Getting Started".
4) Select Accuracy Limit:
• Status: On to activate a warning message if the calculated standard deviation exceeds the limit.
• Set the accuracy limits for the Easting, Northing and Height coordinates and the standard deviation
angle.
• Press OK to save the limits and return to the Pre-settings screen.
5) Select GO! to begin the application.
Enter target data Enter the name of the station and the height of the instrument in the Station data screen and press OK.
Next step
To access the Sight target point screen:
• Either, press OK after entering the target data fields in the Target data screen.
• Or, press SKIP to skip entering the target data fields again when measuring the same point
in another face.
Sight target point In the Sight target point screen:
2 / I: Indicates that the second point was measured in face I.
2 / I II: Indicates that the second point was measured in faces I and II.
Next step
• Either, press NextPt to measure the next known point.
• Or, press CALC. to calculate the station position.
dLength Longitudinal offset: Positive if set out point is further away than the measured point.
dTrav. Perpendicular offset: Positive if set out point is to the right of the measured point.
dE Easting offset: Positive if set out point is to the right of the measured point.
dN Northing offset: Positive if set out point is further away than the measured point
dZ Height offset: Positive if set out point is higher than the measured point.
Field Description
Z
CALC.
To calculate and display the station coordinates,
if at least two points and a distance were meas-
ured.
NextPt
To return to the Enter target data screen to
select the next known point.
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