1. Technology and Engineering
Mapping And Surveing Department
AUTOLEVEL OPERATING SYSTEM

2. BASE KNOWLEDGE Sunlight cover Objective Lens
Horizontal driving force screw
Nivo correction screw
Nivo box
Diaphragm driving force screw
Alignment
Ocular Lens
Nivo light regulator
Horizontal disk plate
Horizontal nivo driving force screw
Nivo driving force screw
Base
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3. STATIP/TRIPOD SETTING
Set the tripod. The leg should be opened minimally in 60 degree
Plug the statip to the ground in order that it stands strongly.
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4. INSRUMENT SETTING
1. Try to make the tripod disk is in horizontal position.
2. Take the instrument out from the box
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5. 3. Record the kind, number, and the type of the instrument.
4. Place the instrument on the tripod disk and lock it using screw.
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6. INSTRUMENT SETTING
1. Now it is time to make the instrument become in horizontal position and ready to use.
2. Set the instrument and the two nivo screws equally (a and b)
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7. 4. Play screw (c) to make the bubble position is in the centre.
3. Play the screw (a and b) together by thumb. Play both screws in the same direction in order that the nivo bubble is in the centre.
4. Play screw (c) to make the bubble position is in the centre.
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8. 5. Direct the telescope on the target, then check the nivo once more..
6. If the bubble is not in the centre position, repeat the steps of nivo setting as mentioned above.
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9. 7. Direct on the target again
7. Direct on the target again. Then check the cross thread by stirring the ocular lens
8. Check the parrarel sign by directing the diaphragm screw until we can clearly see the target’s mark.
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10. 9. If the nivo, paralak, cross thread are correct, it means that we are ready to read the target.
10.Pay attention on the nivo tube which must be equal with the telescope. It must be in horizontal position by setting the nivo driving force screw. The nivo is in inverted U-shaped if it is seen from ocular lens.
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11. HOW TO READ HIGH DIFFERENCES
1. Sign between point A and B are as follow :
A = 1,736 m
B = 1,253 m
= 0,483 m
Point B is higher 0,483 m
than point A
2. A level = HA and B level = HB. If the sign is read as A = fA and sign B = fB, so the high differences between sign A and B is fA – fB.
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12. METHOD THE USING AND OPERATING SYSTEM OF AUTOLEVEL
DESCRIPTION
METHOD
THE USING
AND
OPERATING SYSTEM OF
AUTOLEVEL
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13. HOW TO USE AUTOLEVEL The Conditions of an autolevel are :
Main condition : telescope viewfinder must be equal with nivo reference line
Second Condition : Nivo reference line must be in perpendicular with the first spindle
Third Condition : The cross thread line must be in perpendicular with the first spindle
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14. Autolevel for measuring building
Autolevel, in the using, can be grouped into three based on the accuracy and the application:
Autolevel for measuring building
Autolevel for measuring in civil engineering
Accurate autolevel
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15. AUTOLEVEL OPERATION SYSTEM
1. Tripod/statip setting
Open the strap
Slack the three screws
Remove the statip head up as high as the breast
Open the statip leg, forming equilateral triangle in 60 degree by the ground surface
Tread the statip
Control the surface of the statip
Control the statip surface using pencil to make sure that the position has been flat. This is very important in order to make hat the setting of the nivo using the screws is not difficult.
Teknologi dan Rekayasa

16. 2. Instrument setting on the statip
Place the autolevel on the statip head, and then lock it using statip locker.
Set the telescope so that the nivo is in equal position with the screw ( A and B)
Play the two screws together in opposite direction so that the nivo bubble position is in the centre
Play the telescope so that the nivo is perpendicular with the direction of the screw ( A and B )
Set only the screw ( c ) so that the nivo bubble is in the middle
Repeat the step above until the bubble is located in centre when the telescope plays in all direction
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17. 3. Viewing telescope on target
Play the telescope on target using view helping tool (visir) where is located on the telescope near the ocular lens.
Set the ocular ring so that the cross thread is clearly seen.
Set the diaphragm so that the target will clearly seen.
Fit the position of the vertical cross thread with the target spindle using horizontal driving force screw.
See and record the high of the top yarn, middle yarn and bottom yarn.
Control the result using formula as follow: (Ba + Bb)/2 = Bt
By the same steps, view the telescope on the wanted target
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18. Teknologi dan Rekayasa

19. TERIMA KASIH
Teknologi dan Rekayasa