Tribrachs
(3 Styles Available)- Ships Factory Direct
- Full Manufacturer Warranty
- 30 Day Money Back Guarantee
- Price Match Guarantee
Surveying Equipment Best Sellers
Tribrachs
(3 Styles Available)- Ships Factory Direct
- Full Manufacturer Warranty
- 30 Day Money Back Guarantee
- Price Match Guarantee
Northwest Instrument Tribrach w/o Optical Plummet - NTB01
Price:
Regular price
$215.00
(37% OFF!)
Northwest Instrument Tribrach w/ Optical Plummet - NTB11
Price:
Regular price
$250.00
(41% OFF!)
Frequently Asked Questions
What does a tribrach do?
Should the tribrach be clamped when surveying?
How do I adjust a tribrach with an optical plummet?
- Place a target on the ceiling.
- Put one tribrach on a tripod and a tribrach adjuster on that tribrach.
- Turn the tribrach to be adjusted upside down so that it faces the target. Then, attach this tribrach to the adjuster.
- Adjust the leveling screws of the bottom tribrach until the crosshair of the top tribrach aligns with the target.
- To check if the crosshair remains aligned with the target, turn the top tribrach 180 degrees on the adjuster.
How do I clean a tribrach?
What is the correct way to plumb a tribrach?
HELPFUL VIDEOS
How to Set up a Tribrach for a Total Station
A tribrach doesn’t simply secure a surveying instrument on a tripod—it also ensures that it is positioned over a precise point on the ground. Without a quality tribrach, the tripod-mounted instrument will likely provide erroneous results. Of course, knowing how to set up a tribrach on a tripod is a must for trouble-free operation.
For those who are planning to use total stations, this video clarifies the relatively confusing process of the initial setup. It explains how to properly adjust and level a tribrach on a tripod as well as how to lock the total station in place.
Tribrachs
Contrary to how it seems, ranging or distance measuring cannot be done in a single day. This is why it is important to ensure that surveying instruments, such as levels, theodolites, and total stations, are set up in precise positions. Oftentimes, plumb bobs are used to set instruments on fixed survey points, but their accuracy cannot be relied on in windy conditions. To ensure precision and stability when setting up surveying instruments, attach them to tribrachs. These devices have two triangular plates, bubble levels for accuracy, and locking mechanisms to secure the instrument in place. By locking the instrument onto the tribrach’s plate and adjusting the tribrach on a leveled plane, the instrument can be set up on a precise position repeatedly. Some of the tribrachs that are available here on Engineer Warehouse come with optical plummets, which feature cross-hair sights, to help position the instrument over precise survey markers. To attach tribrachs to various tripods, the base plates of most tribrachs offer a universal thread size. These tribrachs are also made to be durable so that they can withstand the weight of any surveying instrument.
