Model GSE 307 - Gas Sensor
From Gas Detector
The principle of the measurement cell used is based on the electro-chemical oxidation of hydrogen H2 on the working electrode. The H2 in the measurement air reaches the working electrode via a gas-permeable diaphragm, and is oxidised. The oxygen molecule used for this is replaced from the ambient air. This results in the very long service life of the measurement cell, which, from experience, can operate for several years. The measured gas concentration is linear to the electrical output signal of the gas measurement probe. The potentiometers and the 3.5 mm jack connection for the calibration are accessible from the outside, and permits a “one-man” calibration. When used in a pump system, the service life can be heavily reduced, as the electrolyte evaporates more quickly through the porous diaphragm.
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The measurement cell is sensitive to solvent v...
The measurement cell is sensitive to solvent vapours. The calibration gas should be 75% of the measurement range, and must contain synthetic air as the carrier gas.
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