mounting the sensor (threaded or flanged) to the vessel, connecting the power and control wires,
and applying power. There is no additional set-up or calibration required. Since it is an electronic instrument with no moving parts, preventive maintenance is limited to an annual visual
inspection. The only recommended spare part is the “board” at a quantity of one board for every
10 units. A technician with basic electrical skills (wiring) can service the instrument.Why use an ultrasonic switch ove