Detectors of level: measure of continuous level and control of level Ton
In the measurement of level distinguishes mainly between the direct measurement in the fluid and the indirect detection from out (for example through the wall of the tank by means of detectors capacitivos). In the case of the mechanical switches, the wear and the waste are frequent cause of failures, especially when the measurement effects in contact with the fluid.
The electronic sensors of Ifm, instead, work entirely without mechanical components, reason whereby are very robust and reliable. Even in aggressive fluids, as for example the lubricants refrigerators, the electronic sensors work without any type of problem.
Other advantages of the electronic sensors are the visualisation in situ of the level or the simple adjust of the point of conmutación pressesing a button. In the measurement of levels in tanks distinguishes between the continuous measurement and the register of levels Ton clear-cut.
In the first, the level registers continuously and turns into an electrical signal that visualises . For the back processing use , depending of the model, exits of conmutación programmable or an analog exit. The sensors of continuous level of ifm electronic use two physical principles of measurement. Regarding the measurement capacitiva, the tank and the material contained in the same form an electrical condenser. The capacity varies in proportion to the level and is turned into a value of measure by means of a microprocessor. In what it concerns to the measurement of hydrostatic level, a cell of ceramic measurement registers the hydrostatic pressesure of the material of the tank. In this case, the change of pressesure turns into a measure for the level.
In the detection of the level Ton registers the arrival to a level of filled clear-cut, and turns into an electrical signal Ton. Thanks to the technology of the microprocessor, the user can enter adjust them of the fluid in the sensor by means of button pulsador. The integrated cheese cheese electronics equipment dealers equipment dealers guarantees an exact replication of the points of conmutación adjusted.