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Close loop, 2 peg test 2 peg shot 2 peg shot results, 2 peg test – Spectra Precision Survey Pro v4.9 User Manual

Page 139: 2 peg shots

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[Overwrite]: Allows you to overwrite the coordinates of the benchmark with the new coordinates. This option will not
be available when the benchmark entered in the Turn to Benchmark screen was the same as the starting benchmark.

[Use Next]: allows you to create a new point using the coordinates entered in the

Turn to Benchmark

screen and the

elevation measured from the previous shots. This option should not be selected when shooting the closing benchmark.

[Close Loop By Existing Point]: opens the

Close Loop

screen.

Close Loop

The Close Loop screen lists the notes for the current level loop and allows you to close the current loop. This is the
only screen that can be used to close a loop.

[Close Level Loop]: closes the current level loop and opens the Level screen where no additional shots can be taken.

2 Peg Test

[Leveling] [2 Peg Test]

The 2 Peg Test screen is used to check that the line of sight through the level is horizontal when the bubble is properly
centered.

The graphic of this screen shows the current setup and indicates which shot you will be shooting next with a red
square. The first line of text also indicates which shot must be taken next.

[Check H. Dist]: This button only appears after shooting the initial shots to Point A. This will measure the horizontal
distance to Point B and compare it with the distance already measured to Point A. Come/go information is then
provided so the rod over Point B can be moved until it equals the horizontal distance to Point A. Use of this button is
optional and the results are not used for computing the error.

[Take Shot]: takes the required sets of shots to the point indicated on this screen.

2 Peg Shots

[Leveling] [2 Peg Test] [Take Shot]

The 2 Peg Shots screen is used to perform the required shots to whichever observation you are shooting. The specific
shots you are prompted for depends on which rod you are shooting and the number of sets configured in the Level
Settings screen.

The top line indicates if you are shooting the rod over Point A or Point B, and if you are shooting the shots for the first
or second setup.

The box on the second line tells you which shot to take next. The term A1 means to shoot the rod over Point A for Set
1. If the box showed B3, it would mean to shoot the rod over Point B for Set 3.

[Take Shot]: takes the shot indicated within the box on this screen.

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