IFM Electronic, S.L. - Probes, sensors and flow transmitters

The electronic sensors of discharge Ifm operate according to the principle calorimétrico. They use the physical effect with which a half that flows absorbs thermal sensors power and transports it. In the tip of the sensor find two sensitive resistances to the temperature, as well as a source of heat. This generates in the flowed a local increase of the temperature, which is detected by one of the two resistances. In what the discharge flows, embezzles the power of the source of heat, which cools . The change of resultant temperature is a measure for the discharge.

To avoid that the result of measurement do not falsify because of the fluctuation of temperature, exists a second element sensor for the compensation of temperature. From the difference of resistance of both temperature and after the compensation of temperature, the unit of evaluation issues the signal ‘there is discharge' or ‘there is not discharge' compared with the nominal value or with the limit configured. Since these systems operate without mechanical components mobiles, the user can effect the setting without taking into account the position of installation neither the sense of the discharge. For determinate applications and environingingmental conditions recommends a more specific setting.

Some of his technical characteristics are: without wear thanks to the measurement calorimétrica, for liquid and gaseous fluids, connections of variable process by means of optional adapters, special versions for explosive zones and display with Leds for visualisation in situ.