MOLLET Füllstandtechnik GmbH

The suitable solution for any kind of level measurement in bulk solids is guaranteed by the comprehensive range of different product designs. These rotary paddle switches of the MOLOSroto series fulfill although extreme requirements and work in areas with gas and dust explosion hazard, with process pressures up to 100 bar or process temperatures up to 1.200 °C.

MOLOSswitch coupling systems of MOLLET are equipped with mechanical or inductive limit switches in order to signal the coupling situation during the filling process at silos and tanks or at coupling stations. The coupling with internal thread has a built-in limit switch with metal housing. During the coupling of the counter coupling or hose coupling the limit switch will be actuated. Blank caps do not activate the limit switch.

Product features

• KE – limit switch with mechanical contact
• KI  – inductive limit switch
• KN – inductive limit switch NAMUR
• Protection against damage by metal housing and special design
• Cable length alternatively 2 m, 5 m or 10 m
• Couplings made of Aluminium, Brass or Stainless steel

The devices of the MOLOSwave series for continuous level measurement are working with the Time Domain Reflectometry (TDR) measurement principle. They are specifically designed for the use in bulk goods. During the measurement high frequency microwave pulses with low energy are coupled onto the probe and guided along this probe to the bulk goods. The product surface partly reflects these pulses. The electronic detects the reflected pulses and calculates the actual filling level from the time difference of the transmitted and received signals. These filling levels are made available as a 4-20 mA signal for further signal processing. This signal can be visualized with easy to use and well legible indicating units that are mounted in a switch cabinet.

Product features

• Use in dust explosive areas with ATEX zone 20/21 possible
• Measuring range MWF 21 with rod probe up to 3 m
• Measuring range MWF 27 with cable probe up to 20 m
• High measurement accuracy
• Highest level of functional safety through the use of 4- wire technology
• Independent of bulk solids features
• Insensitive against dust, buildup and condensation
• Very good price-performance-ratio
• Wear and maintenance-free operation
• High tolerance of interfering signals
• Different probes available
• Different process connections (threads, flanges, Tri-Clamp, …)
• Housing made of Aluminium or stainless steel