Membrane level switch SOLIBA MS

for bulk materialsfor powdersfor tanks

Overview
The SOLIBA MS is a compact membrane level detector designed to control high and low levels in hoppers, silos and small containers. It also detects blockages and material build-up in chutes, screws and conveyors. The device is mounted inside the hopper and must be installed on the vertical wall for optimal performance.

Applications and materials
Suitable for free-flowing powders and granular products such as dust, flour, cereals, sand and plastic pellets. Recommended bulk density for best sensitivity: 0.3 to 1 t/m³. Operational range: 0.3 to 2.5 t/m³. Not intended for highly cohesive or sticky materials.

Operating principle
The detector is actuated by pressure exerted by the bulk material against the membrane. When the membrane is loaded, the micro-switch changes state and sends an electrical contact to the control system to stop filling or trigger an alarm. A spring adjustment with a locking nut allows sensitivity tuning: tightening reduces sensitivity and increases the force required to actuate the switch.

Key information
Operation: By pressure
Use: Hopper/silo fill stop and blockage detection
Power supply: 250 VAC / VDC 50/60 Hz
Breaking capacity: 16 A
Temperature range: -10 °C ... +60 °C
Protection index: IP44
Enclosure: ABS
Membrane: NBR or Viton
Weight (without cable): 200 g
Dimensions: H 50 mm, Ø 90 mm
Product density: 0.3 to 2.5 t/m³ (recommendation 0.3 to 1 t/m³)

Technical specifications

• Type: Membrane level detector
• Principle: Pressure on membrane
• Main use: Hopper fill stop, blockage detection
• Power supply: 250 V AC/DC 50/60 Hz
• Breaking capacity: 16 A
• Temperature: -10 °C to +60 °C
• Ingress protection: IP44
• Enclosure: ABS
• Membrane: NBR or Viton
• Weight: 200 g (without cable)
• Dimensions: H 50 mm, Ø 90 mm
• Product density range: 0.3 to 2.5 t/m³ (recommended 0.3 to 1 t/m³)