Using a dumpy level is much like using any other RTK GPS surveying equipment. Although there is often less technical information provided with this device. We go through the entire process of setting up and using your survey equipment below.
The first step in using your dumpy level, or any other surveying equipment, is finding a benchmark. These are locations left by previous surveyors that mark a specific height, making it easy to affirm your measurements. If there are no nearby benchmarks, consider using an easily identifiable landmark instead.
Look for markers that are stable, well-documented, and easy to access. Confirm the benchmark’s elevation from a trusted source before starting, and double-check that the point is unobstructed so your readings remain consistent throughout the session.
Now it is time to select a location to set up your surveying equipment. This area should be wide open and free of obstructions. It must also be level, which is why most tripods come with a bubble level.
Next, it is time for you to mount your surveying equipment. Use the levelling screws to ensure it is at the proper height and orientation. Once you’re sure that it is level, rotate it in the opposite direction and ensure it maintains its orientation. Secure all tripod clamps firmly so the instrument remains stable during the measurement process.
After levelling, make small adjustments to eliminate any residual tilt. Re-check the alignment after rotating the device to confirm that no movement occurred during setup.
Start by removing the lens cap that comes with your surveying equipment, and then adjust the focus knobs until the picture is clear. Begin by adjusting the eyepiece to sharpen the crosshairs before focusing on the staff. Make incremental adjustments instead of large turns, ensuring the image remains stable and sharp. If heatwaves or lighting conditions affect clarity, wait a moment and refocus to maintain accuracy.
You are now ready to begin taking measurements. Use your signal position and rover to measure the different areas of your survey location. Record readings methodically, starting from your benchmark and moving outward in a consistent pattern. Take multiple readings for each point to confirm accuracy, especially if you’re learning how to use a dumpy level in varying field conditions. Keep notes organized so you can easily calculate differences in elevation later.
If you are interested in learning more about your surveying equipment, including the best processes for taking measurements or general maintenance tips, contact Bench Mark US today. We have the support and staff you need to carry out any surveying operation.
Bench Mark Equipment & Supplies is your team to trust with all your surveying equipment. We have been providing high-quality surveying equipment to land surveyors, engineers, construction, airborne and resource professionals since 2002. This helps establish ourselves as the go-to team in Calgary, Canada, and the USA. Plus, we provide a wide selection of equipment, including global navigation satellite systems, RTK GPS equipment, GNSS receivers, and more. We strive to provide the highest level of customer care and service for everyone. To speak to one of our team today, call us at +1 (888) 286-3204 or email us at [email protected]
