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Continuous level measurement with Yo-Yo sensing system LF20

A sensing weight is driven down into the silo or hopper with a steel band. As soon as the weight touches the surface, the tensile force on the tape decreases. This reduced tensile force is detected by the electronic of the MOLOSbob LF20 and the lowering of the weight is stopped immediately. After this a 4-20 mA current output signal is given proportional to the measured distance and the sensing weight returns to the end position whereby the measured value determined is retained until the next measurement cycle starts. Different sensing weights enable exact level measurements independent of density or grain size of the bulk material.

Product features

  • Compact and still robust design with low weight
  • Measurement technology unaffected from characteristics like dust, moisture, conductivity or grain size of the bulk material
  • Reliable continuous level measurement up to a silo height of 42 m
  • High measurement accuracy of the actual filling level of ±2.5 cm
  • Measurement in silos with a process temperatures up to 150 °C possible
  • No influence on the measurement process by internals in silos or vessels
  • Use in dust incendive hazard areas possible, category 1/2D
  • A four-line plain text display enables an easy menu-guided commissioning and local operation
  • No movement into silo outlet due to fully electronic digital minimum fail-safe mode
  • Special designed tape wiper avoids pollution of internal housing
  • Protection type IP 67 according EN 60529
  • 4 - 20 mA current output and maximum 4 freely programmable signal outputs

ADD FILES

MOLLET

Czujnik poziomu w silosie LF20 MOLLET

LEVEL SENSORS

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