MOLOSbob level measurement

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. This signal can be visualized with easy to use and well legible indicating units that are mounted in a switch cabinet.

Product features

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

Further information on ATEX