New water level data collector is a breakthrough

Presently the Keller DCX22-AA is the only (!) autonomous sewer overflow data logger. The DCX22-AA is suited to measuring ground and surface water as well as registering (sewage) overflow

The high specification of the DCX22-AA make it an accurate solution for submersible data logging applications.

Its battery will remain working for 10 years; the stainless steel parts are RV316L and the internal memory can be read wirelessly with the Keller GSM-1 modem.

To produce the accuracy required, the DCX22-AA has air pressure compensation.

What makes air pressure compensation so important when measuring levels? Firstly, no extra logger is required to register the air pressure, this means no extra installation, maintenance or read-outs are necessary, which saves time and money.

Secondly, no barometric correction calculation is needed afterwards as the air pressure is compensated semi-automatically.

Finally, a real time compensated air pressure measurement is necessary to correct overflow readings.

During thunderstorms, air pressure can change dramatically, very quickly.

A non-compensated measurement or systems that reset at "zero" once a day fail here and will not show the correct data.

Keller is the first to supply an autonomous, compensated air pressure level/overflow data logger.

Conventional air pressure compensation via vent tube has one major drawback: possible condensation, especially with a gauging-tube under water.

Enter the solution: AA technology from Keller.

AA-technology: what does it do? The data collector DCX22-AA measures and records ground water levels using the Keller two sensor AA technology.

There are no ventilation tubes, which makes it suitable for reliable applications in wet environments.

The "AA" is short for Absolute-Absolute.

Two high precision absolute sensors measure the hydrostatic and air pressure.

A Xemics microprocessor compares and calculates the 2 values thus showing the air pressure compensated water level.

With this technique, the system has a real-time air pressure compensation while remaining waterproof.

The software included enables configuration of the data collector and data readout.

The modular structure of the DCX22-AA offers the user 2 options for collecting data.

The standard installation requires the user to visit the location, connect via cable and download the data.

The optional GSM-1 unit allows the transmission of data and reprogramming of the data collector from a remote location.

The data can be sent to any mobile phone by text.

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