ULM–70, Dinel-Ultrasonic level meters


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 reflected acoustic waves that are subsequently processed in the electronic module. The intelligent evaluation block filters out interfering signals compare to the cleaned received signal with the false reflection map (e.g. from mixers, ladders, reinforcement, etc.) and select a suitable reflection (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: current 4 -20 mA with HART® protocol or output RS-485 Modbus, 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 solids is measured, the measurement range is reduced. We recommend consulting the use with the manufacturer.


  • Universal use, direct mounting into tanks, vessels, containers, sumps, etc.
  • Instant view of measured values on OLED or LCD.
  • Advanced signal processing with the elimination of false reflections.
  • Easy adjustment even without measured material.
  • Current or data output – 4 … 20 mA, HART®, RS-485 Modbus/RTU.
  • Xi version for usage in explosive areas.
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read more:https://inaparts.com/sensor/ultrasonic-level-meters-ulm-70-dinel/

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