FINETEK Where should admittance level switch / level switch SB series

FINETEK Where should admittance level switch / level switch SB series of actions the principle admittance level switch in order to overcome the impact of attachments, especially in between the main electrode and the ground electrode more than the increase of a guard electrode, to ensure that the signal Level correctly. This particular electrode configuration is particularly suitable for detecting a variety of different materials, and is not affected by the material attached. Probe often encounter situations have material attached thereto, and in between three electrodes form a capacitance and resistance, due to the potential and wave main electrode and the guard electrode between the same, so there will be no current through the medium of the two electrodes, admittance Level Switch Using the above principle, set a guard electrode in between the main electrode and the ground electrode, to block radio-frequency current through the medium of the main electrode and the ground electrode between the tank wall and reach. Although there will be a small amount of radio frequency current through, but the circuit does not detect a current value between the electrode and the ground electrode protection. Since the role of protecting the electrode, only change between the RF current between the main electrode and the tank wall will be adopted by the detection circuit, so that when the probe contacts the material, will produce an accurate signal Level, the signal Level The dielectric constant is proportional to the size, but it is inversely proportional to the resistance value, the signal can easily be detected out of the circuit, and outputs a control signal. Features? Without material attachment impact? Install and easy to adjust? Good stability, independent of temperature? Adjustable delay output from 0 to 90 seconds? IP65 enclosure protection rating? DPDT, 5 Amp contact output? Temperature up to 550 ℃ ? high and low fail-safe function can be switched? adapted to detect liquids, slurries, solid particles and interfaces