Thermo-Paramagnetic Oxygen Sensor

Thermo-Paramagnetic Sensor Oxygen is a paramagnetic gas, which means that it is attracted by a magnetic field. This magnetic susceptibility is much greater than that of most other gas molecules and therefore this physical property is ideal for the determination of the level of oxygen in a wide range of background gases. The XTP600 series is a thermo-paramagnetic oxygen analyzer where the combination of paramagnetic and thermal conductivity technology is exploited to accurately measure oxygen and to provide a second signal that correlates with the matrix of the process gas. The magnetic susceptibility of oxygen decreases inversely with its temperature. This effect causes a flow of gas containing oxygen inside the temperature-controlled measuring chamber of the analyzer. The flow or "magnetic wind" alters the equilibrium temperature between thermistor pairs resulting in a change of the electrical resistance of the sensors and a signal that is proportional to the oxygen concentration in the measured gas. In addition to the outstanding linearity and stability of the Michell XTP601 sensor, the insensitivity to mechanical shock is another advantage of the thermo-paramagnetic technology. As it relies solely upon fluctuations in magnetic fields and not internal moving parts, the sensor will operate efficiently under a wide range of environmental conditions. It is suitable for installation where vibration or movement could pose a problem for other sensor types.

XTP601 XTP601 Series
A robust, linear and stable oxygen analyzer for measurements in gases such as hydrogen, nitrogen or air for Safe or Hazardous...