Solution to the problem of false liquid level in magnetic flap level gauge

The magnetic flap level gauge is developed based on the buoyancy principle and magnetic coupling. Such a level gauge generally utilizes the principle of magnetostriction, the signal of the magnetic float is transmitted by the waveguide wire, and the liquid level value is obtained by the circuit processing signal. We will have a false liquid level problem in the process of using it. How to solve this problem? The following is a detailed description of the solution to the problem of false liquid level in the magnetic flap level gauge.
 
Since the magnetic flap level gauge indicates that the display portion is not in direct contact with the medium, the level gauge is generally highly reliable. Remember not to take measurements with electricity. When using a logic pen or an oscilloscope to detect a signal, use a multimeter to ohmic. Care should be taken not to have the probe touch both measurement pins at the same time, since the essence of this situation is to form a short circuit in the case of power up.
 
When the instrument is faulty in a humid environment, it is necessary to measure the smoothness of each point on the printed circuit with a multimeter, because the main fault in this case is copper foil corrosion. When inspecting the internal circuit of the instrument, if the contact points of the mounted components and the circuit board are coated with insulating varnish, the parameters of each point can be measured by ordinary hand stitching on the test chart of the multimeter, so as to pierce the paint layer and directly measure each point without large Area peeling paint layer. Do not plug and unplug various control boards and plugs. Because in the case of power-on, the plug-in control board will generate a strong induced electromotive force, and the instantaneous counter-attack voltage is very high, which easily damages the corresponding control board and plug. Don't blindly knock and bump when you are overhauling, so as not to expand the fault, the more you repair it. When the side-mounted magnetic flap level gauge is used to disassemble and adjust the meter, the original position should be recorded for recovery. When repairing precision instruments, if you accidentally fly small parts, you can use magnet scanning and line-of-sight scanning methods to find them.