LTH ProcessProbe™ Dissolved Oxygen Sensor has been constructed to provide a measurement system that is ideal for use in variable flow conditions or applications of extended duration.
With most oxygen sensors the output is lower in stagnant solutions than in agitated ones. This is due to the sensor consuming oxygen and creating a depletion layer in the proximity of the cathode. In a stagnant solution if the sample is not updated faster than the sensor consumes the oxygen a lower output results. A high degree of flow dependence occurs with sensors that have large cathodes or thin and highly permeable membranes. The membrane construction of the ProcessProbe™ consists of a thin PTFE layer and a relatively thick steel mesh reinforced silicon layer. The silicon layer is highly permeable to oxygen and provides an oxygen reservoir.
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