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| How do I stake out a coordinate using the Set110 series instrument? |
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You must start by entering Page 2 of the MEAS menu. Under F3, you should see the key and select it. Now, you should enter in your station coordinate by selecting option #3 (STN data). Here you must either key in the coordinate that you are set up over or select the key to select it from an uploaded list (or keyboard inputs). When the data looks correct, then you can select the key to confirm this information. At this point, you should set your backsight. You can do this by selecting #4 (Set H Angle) from the S-O menu. When you select this you will see a field that says "HAR:_____". You may either key in the azimuth here or more than likely you will need to select a coordinate. In this case, hit the key.
Now, you should see a screen that shows your STN (station) data on top (N0,E0,Z0) and then you may key the coordinates in of your backsight (NBS,EBS,ZBS). You may also use the button to select from a list of uploaded coordinates.
Note: If you do hit the key to select from a list, then make sure that the highlighted field is somewhere in the NBS,EBS or ZBS areas. Hit the key when this screen looks correct. You should now see a screen that says "Take BS." Sight on your backsight coordinate and then hit the key.
Note: This process does not use the EDM as it is an angle only measurement. You should see the known azimuth from your station to your backsight appear. Hit the RETURN key to confirm this. The azimuth should now be oriented to your working area.
Finally, it is time to stakeout a coordinate. From the S-O menu, select option #2 (S-O data). You will see a screen that looks similar to the STN data screen except this time you will be keying in (or READing) coordinates for your stakeout point(s). Where you see the Np,Ep,Zp you should make these fields reflect that of your coordinate to be set out. Hit when your stakeout coordinate is entered.
Now, you will see the main stakeout navigation screen. More than likely you will want to stakeout a horizontal distance here. You can select this option by hitting F2 (triS-O). You will need to keep pressing the button until you see a "H" above the "ZA" text on the display. The second to top line should read "S-O H". You need to turn the total station horizontally until the dHA reads 0 degrees (or as close to it as you can get). At this time, you need to line your target up somewhere out there on this line approximating the correct distance up or down the line to be set out.
Note: It is okay to do some guesswork on the distance here as we will be taking Hdist readings to aid us in moving up and down the line distance-wise. Hit the button that has left and right arrows on it (F3) and it will change us into the directional mode for stakeout.
Finally, hit the Hdist (F1) key and it will give you arrows to tell you how far the target needs to come in or out from the total station. If you see an up arrow, then that means to move the target further out from the total station. If you are seeing a left or right arrow on top, then you are going to have to realign horizontally slightly depending on the direction that it is telling you. When you are getting a distance from point as low as you can get, then it is time to stake the point and go to the next point and repeat this process.
Note: You may omit the STN and SetHangle options if you are not moving your instrument. |
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