•  For continuous non-contact level measurement
•  Suited to level measurement of various liquid and bulk-solid materials
•  Outstanding contrast OLED display
•  Easy adjustment without measured material
•  Quick view measured values on the display
•  Xi version for usage in explosive areas
•  Current output (4 ... 20 mA) with HART communication protocol

The ULM ®  ultrasonic level meters are compact measurement devices including an electroacoustics converter, central processor unit and display module. Using the electroacoustics converter, the level meters transmit the sequence of ultrasonic pulses that spread towards the surface level. The converter recuperates refl ected acoustic waves that are subsequently processed in the electronic module. The intelligent evaluation block fi lters out interfering signals, compares the cleaned received signal with the false refl ection map (e.g. from mixers, ladders, reinforcement etc.) and selects a suitable refl ection (echo). Based on the period during which the individual pulses spread towards the surface level and back and based on the measured temperature in the tank, the instant distance to the surface level is calculated. According to the level height, the level meter output is set and the measured value is displayed on the display.
The level meters are suited to level measurement of various liquid materials, sewerage waters, mash and paste materials, suspensions in closed or open vessels, sumps, reservoirs and open channels. In case the level of bulk-solid materials is measured, the measurement range is reduced. We recommend to consult the use with the manufacturer.