![]() The Model 300 Dl has all the same features as the 300 but with the ability to Datalog information. This is accomplished by lowering the tape or. Includes a hard plastic, foam lined case with adaptors for uncapped wells and instructions. The well sounder, weighted tape or electronic water level indicators can be used to determine the total well depth. The water temperature should be measured and the Look-Up Table used in the regions where geothermal activity or other anomalous subsurface conditions exist. Regional Map Tables are available for the entire US. This value is easily set into the meter by using the up-down toggle switch and shows continuously on the display. Explore the NEW USGS National Water Dashboard interactive map to access real-time water data from over 13,500 stations nationwide. The Regional Map Table or the Look Up Table can help provide the appropriate temperature setting. They are: tape measure or weight on a cord, electric sounder and airline tube. The unit remembers the last setting used. There are three methods commonly used to measure depth to water in a well. The Temperature setting control adjusts for the variation, which is approximately 0.1 per degree F. Using this setting reduces the possibility of false returns from the end of the casings that go into rock, from wire shields, torque arresters, and similar obstructions at the upper end of the well.įor the best accuracy, it is necessary to compensate for the variation of sound velocity with well air temperature. submersible level meter are completely sealed for submersion in liquid, can be used to measure water level, well depth, groundwater leverl and so on type. The Depth Switch optimizes the measuring capability for deeper wells. Multiplying by the velocity of sound and dividing by two, gives the depth-to-water in feet, or meters in the metric mode. Once you have the measurement, measure the distance between the tank cover where the ultrasonic sensor will be installed and the brim of the water tank. The signal reflected from the water surface is then detected and the round-trip time measured. You can do so by measuring the height of the tank from the outside or inside using a measuring tape. The sonic signal is injected from the meter duct into the well casing through a top opening in the well cap of 5/8-inches or greater in diameter. Instead of introducing foreign objects into a well, the SONIC method uses the air in the well to send an acoustic signal down to the water surface. Accuracy is to within 1/10 of 1% of the total depth of the water. The unit will measure 2” or larger wells, even capped wells that have a 5/8” or larger access hole. A quick and easy way to accurately measure the depth to the water in a residential well Show more. No probes or wires need go down-hole to get hung up or broken off.
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