Liquid conductivity probe

with temperature measurement

Conductivity probes are used to manage liquid levels inside automatic tanks. The classic applications of liquid level management in a tank are represented by the presence of two probes: one signals the minimum level, the other controls the maximum level. These components have the stem coated in different types of PTFE. The ends remain uncovered, thus sensing the mass of the liquid. The non-immersed part of the probe has a small clamp that, thanks to a coated copper wire connected to a mass amplifier that emits an electrical impulse, starts the electric pump and fills the tank. When the liquid mass touches the probe at the maximum level, the electrical signal is used by the control system to turn off the electric pump, preventing the liquid from leaking out of the tank. The PT100 probe is used in a control loop to signal the temperature inside a chamber of a dryer or liquid tank. The probe bulb communicates the temperature to the PLC, which will then perform the necessary actions to carry out a work cycle with the established temperatures. In the case of a chamber heated by a coil where steam circulates, the PLC will have to manage and maintain a certain temperature by opening or closing the regulation valve while maintaining the established degrees.