Contents
How do you use a transit level for distance?
Once you find the reference point, you need to place the bottom of the leveling rod at that point and look through the scope of the transit and write down the distance between the reference point and the plane set by the transit. Once you find that figure, move the level rod to whatever you are looking to measure.
How do you use grade level?
How to Set Grade with a Laser Level
- Set up the laser level on a tripod on firm dry ground.
- Turn on the laser level and give it a moment to self-level.
- Identify the initial height of your grade.
- Place the bottom of the leveling rod at the desired height.
- Adjust the laser detector up or down until you hear a beep.
How do you level a transit with 4 leveling screws?
Turn both screws either toward or away from each other. One screw will then be loosened by the same amount that the other is tightened until bubble is level. 4. Turn the telescope 90 degrees until over the other set of leveling screws or when you have only three leveling screws then over the third screw and adjust.
How do you run a transit?
How To Set Up a Transit Level
- Remove the level from the carrying case.
- Place the level directly on the tripod head.
- Thread or bolt the transit level onto the tripod base.
- Remove the protective lens covers and place them in the carrying case.
- Place the sunshade on the telescope.
- Your transit level is mounted.
Does a transit measure distance?
1 Measuring Angles and Distances. A transit (Figure 5.11) consists of a telescope for sighting distant target objects, two measurement wheels that work like protractors for reading horizontal and vertical angles, and bubble levels to ensure that the angles are true.
How accurate is a transit?
Observation techniques and accuracy The accuracy reaches from 0.2″ (theodolites, small astrolabes) to 0.01″ (modern meridian circles, Danjon). Early instruments (like the mural quadrants of Tycho Brahe) had no telescope and were limited to about 0.01°.
What is a transit for leveling?
What is a transit level? A transit level is an optical surveying instrument used to establish a straight reference line, read angles, and measure distances. It typically features a spirit level, a precision telescope, leveling screws, and a vernier scale.
How is a transit level used for grading?
Consistent placement of the stick is critical to an accurate sighting with the transit level. A transit and measuring stick are used to determine the grade or slope of land. A transit level uses a small telescope mounted to a tripod to establish straight lines.
How do you use a transit to shoot a Grade?
Using a transit to shoot a grade is a simple process that requires carefully setting up and using the transit properly. Pull open the legs of the tripod on the bottom of your tripod. Place them on the ground and tighten the knob that connects the legs to the transit body.
How do you make a transit level Stick?
Adjust the legs until the spirit level, a small vial of liquid containing a bubble, shows it as level, with the bubble centered between the lines. Lock the legs in place. Hold a marked stick at a reference point for the grading project. Transit level kits commonly have a stick marked in 1-inch increments.
How does an assistant use a transit level?
An assistant, sometimes called a stickman, holds the stick vertically straight at the reference point. The transit level operator sites through the telescope of the transit and notes the measurement in the cross hairs of the scope.