Electromechanical level meter
- Measuring range up to 42 m

The FMM20 is an electromechanical level system with a measuring range of up to 42 m. Depending on the selected sensing weight, the level can be measured in bunkers or silos containing dusty, fine-grain or coarse-grain bulk solids or in tanks containing liquids, independently of the product characteristics. Depending on the mechanical design and equipment, it is possible to take measurements in silos or tanks with operating temperatures up to 150 °C or with aggressive atmospheres, e.g. acidic or alkali steams.

• Simple, secure and readily understandable measuring principle, technique is known in almost all industrialized countries
• Easy to use, excellent price / performance ratio
• Accuracy ±2.5 cm or ±1 pulse, thus measured level recorded precisely
• Compact transmitter with 0/4-20 mA current output and additional freely programmable signal outputs (e.g. counting pulses)
• Simple menu-guided onsite operation with four-line plain text display
• Fully electronic digital minimum fail-safe control, therefore no running down of the sensor weight into the silo outlet and no risk to the conveying systems
• Supply voltage 90 - 253 V AC (wide-range voltage power unit) as well as 20 - 24 V DC, depending on version selected
• Optional design with certification for application in areas subject to dust explosion hazard
• Suitable for interface applications