Surveying 1 - Introduction to leveling

Summary

In this 'How To' video by OTEN, Jason and headteacher David demonstrate the setup and use of an automatic level at the Narimba Campus. They explain the components, including the tripod and staff, and show the process of setting up the tripod, placing the instrument, and leveling it using the dome top and levelling screws. The video also highlights the features of the automatic level and emphasizes the importance of careful handling and setup for accurate readings in building site applications.

Takeaways

• 🏫 Jason introduces the video as part of a series by OTEN, a major provider of online and distance education for TAFE New South Wales.
• 📚 The video's purpose is to demonstrate the setup and use of an automatic level, a common tool on building sites.
• 👋 Dave, the headteacher, will be the one demonstrating the automatic level's setup and use.
• 🔬 The automatic level consists of three main components: the level itself, a tripod, and a staff used for taking readings.
• 🔧 Tripods come in two types: dome top and flat top, with the automatic level typically using a dome top tripod.
• 💡 The tripod must be placed firmly and leveled, with the instrument secured on top using a screw and leveled using the tripod's features.
• 🔭 The automatic level has several features including a telescope, eyepiece, crosshairs, focus screw, and fine adjustment screw.
• 🎯 The bullseye level and prism are used to ensure the instrument is leveled and to view the target from a horizontal direction.
• 🚫 The automatic level is sensitive and requires careful handling to avoid damage and maintain accuracy.
• 👀 The level should ideally be set up at eye height for ease of use and to prevent adjustments from being disturbed.
• 🚶‍♂️ When moving around the level, care must be taken not to apply pressure to the tripod or surrounding ground, which could affect leveling.
• 📝 The next step in the demonstration will be showing how to take a reading through the automatic level.

Q & A

What is the purpose of the 'How To' videos created by OTEN?

The 'How To' videos created by OTEN are intended to demonstrate various techniques and procedures, such as site surveying and the use of a level, to provide practical knowledge for TAFE New South Wales students and others interested in these skills.

What is the full form of OTEN?

OTEN stands for the Western Sydney Institute, which is the largest provider of online and distance education and training for TAFE New South Wales.

What type of tripod is generally used with an automatic level?

A dome top tripod is generally used with an automatic level, as it allows for easier leveling of the instrument.

How should the tripod legs be placed when setting up an automatic level?

The tripod legs should be placed firmly in the ground, ensuring that the top of the tripod is level.

What is the purpose of the bubble in the leveling process of the automatic level?

The bubble is used to check the levelness of the instrument. It should be centered in the circle when the instrument is properly leveled.

What are the three components necessary for the use of an automatic level?

The three components necessary for the use of an automatic level are the automatic level itself, the tripod it sits on, and the staff used when taking a reading.

What is the function of the crosshairs within the telescope of an automatic level?

The crosshairs within the telescope of an automatic level help the user to focus on and align with a specific target or point when taking a reading.

How should the instrument be transported to ensure its safety?

The instrument should be transported in its case, well secured, to prevent any damage from drops or impacts.

What is the recommended height for setting up the automatic level?

The automatic level should ideally be set up at eye-height to facilitate easy reading and operation.

Why is it important not to place pressure on the tripod legs when moving around the instrument?

Placing pressure on the tripod legs can push the level out of adjustment, affecting the accuracy of the readings taken with the automatic level.

What is the purpose of the prism in the automatic level?

The prism in the automatic level allows the user to view the bullseye target from the horizontal direction, aiding in precise leveling.