Omega CDE-45PConductivity Sensor | Part 1– Introduction |
Part 1 - Introduction
1.1General
The Model CDE-45P Conductivity Sensor measures the conductivity of aqueous solutions in industrial and municipal process applications. It is designed to perform in the harshest of environments. All seals are dual o-ring using multiple sealing materials. The sensor is designed for use with the Omega CDTX-45 Monitor/Analyzer.
1.2Sensor Features
•4-Electrode measurement system. Two of the electrodes are used to establish the sensor drive potential, while the other two sense the flow of current between the drive electrodes and maintain proper drive potential. In conventional 2-electrode sensors, as the process solution coats the electrode surfaces, the sensor output signal begins to decrease, producing an artificially low conductivity measurement. The Omega 4-Electrode system thus offers a high degree of accuracy for a longer period of time. The four electrodes are made of titanium for greater chemical resistance.
•The Omega 4-Electrode system compensates for the Effects of electrode fouling. As the electrodes become coated by the process solution, a feedback Mechanism detects the decrease in drive potential and automatically re-establishes the proper levels. When coating is such that compensation is no longer possible, and alarm signals the user that the sensor requires cleaning. The system also alerts the user in the event of integral temperature element failure.
•The Omega 4-Electrode system allows a single Sensor configuration to be used reliably over a wide Conductivity range. There is no need for multiple sensors with varying cell constants that are restricted to narrow operating ranges.
•Pt1000 RTD. The temperature element used in this Sensor is highly accurate and provides a highly linear output.
O&M Manual
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