How To Read A Water Level Gauge Board

A large self centred float follows the liquid level in this gauge.

How to read a water level gauge board.

Available in both standard primadura or photoluminescent primadura glow finishes. Raise and lower the free end of the tube up and down until the water levels on both ends match and mark the items at the level spot. The distance from the water level to the end of the air line. Piers and abutments are excellent supports for the staff gauge.

If the gauge reads in pounds per square inch psi convert the reading to feet by using the formula 1 psi 2 31 feet. The guage must have a length sufficient to cover the highest and the lowest water levels. For trapezoidal and rbc flumes the gauges may or may not be direct read as the sidewalls are not vertical. But i get stuck in segmenting the gauge board.

If the open end of an installed air tube is 300 feet below the top of the well casing and the pressure gauge reads 38 psi the water level depth. If you have an older analog meter write down the number that s displayed on its large circular dial. Then replace the last digit of that number with the number the meter s needle is closest to. Manufactured using our 3mm primadura encapsulated and stoved aluminum process these boards are extremely durable and long lasting.

Place the other end against the other post. Have a newer digital meter instead. 3 0 05 0 04 3 09 note that sometimes it is easier to simply count down from the full gradation mark above the water level. I am trying to find a solution where i can extract a water level from an image of a gauge board like the one included.

When reading a staff gauge at a new site thought shoudl be given as to whether the gauge is a direct read or not. To read a water meter start by removing its cover. The staff gauge consists of a graduated board about 150 mm wide firmly fixed in a vertical position. Stafff gauges in flumes with vertical walls parshall hs h hl cutthroat and montana are all direct read.

I am not a software developer and am looking to get this software developed that would be flexible enough to use at many different sites. The graduations should be bold so that they can be read from a distance. I avoid using color based segmentation since i need it to be invariant with light changes so i detect the edges using morphological operations instead. Take the water level to the items you want to measure and hold 1 end of the level against 1 of the posts.

Water level depth gauge boards indicate water depth in rivers dam reservoirs canals locks and navigation channels. This project will look at whether it is viable to have cameras installed at many gauge boards sites on rivers around victoria and australia. Direct read gauges correct for sidewall geometry while indirect read gauges require some adjustment be applied to the gauge reading. This is particularly true in 3 so another way to determine the level is simply to deduct the height of the one white space under the 3 1 foot mark again making the depth 3 09 feet.

A rope fitted with a float moves over a pair of dust free pulleys.