CPC-U-54

The CPC-U-54 ultrasonic level meters are compact measurement devices including an electroacoustics converter, central processor unit and display module. Using the electro acoustics converter, the level meters transmit the sequence of ultrasonic pulses that propagate towards the level. The converter receives reflected acoustic waves that are subsequently processed in the electronic module. The intelligent evaluation block filters out interfering signals, compares the cleaned received signal with the false reflection map (e.g. from mixers, ladders, reinforcement etc.) and selects a suitable reflection (echo). Based on the period during which the individual pulses propagate towards the level and back and based on the measured temperature in the tank, the instant distance to the level is calculated. According to the level height, the level meter output is set: current 4 -20 mA with HART® protocol.