Data Collector for Water Levels
100% waterproof, air pressure compensated
The data collector DCX-22 AA measures and records ground water levels using KELLER’s two
sensor AA-technology (absolute-absolute). The submersible depth sensor measures the water
level. Barometric pressure variations are measured and compensated with the built-in waterproof air pressure sensor which is mounted in the electronics housing at the top of the borehole. There are no ventilation tubes; this means the DCX-22AA data logger is very rugged and suitable for reliable applications in humid and wet environments. Even short periods of immersion and flooding will not cause a problem.
The electronics housing is mounted at the top of the borehole to give easy access for data
downloading. The level sensor (diameter 22 mm) is connected via a sealed cable to the bottom
of the electronics housing. Installation is quick and simple, using fixing devices in various sizes,
suitable for cap lock units of different manufacturers and for well access points starting from 1”
(caps starting at 2” include a hole to lower a dip meter). Thus enabling measuring stations to be set up at considerably lower costs compared to conventional systems.
The electronics employ the latest microprocessor technology, which give high accuracy and resolution for the pressure and temperature signals from both the depth sensor and the barometric sensor. The measured values are mathematically compensated for all linearity and temperature errors of the pressure sensors