Hopper level controller SM85

The SM85 is a simple and economical instrument suitable for the minimum and maximum level control inside silos or hoppers that contain no sticky mate- rials, powders or granulars like rice, corns, plastics, coffee, sand, lime, etc. Working is very simple: the pressure practiced by material on membrane activates a trigger.Trigger sensibility is adjustable by a screw placed on the instru- ment tap. Humidity and temperature variations do not affect working, the membrane is collision and vibration proof. • SM85 for the control of the level of powders or granulars in absence of fuel dust. • SM85.ATEX for the level control of materials, where, inside (process zone 20) or outside the tanks (Environment zone 21) a potentially explosive atmosphere, like dust cloud, can be present. GENERAL FEATURES: • Shock proof and self-exstinguishing plastic case with aluminium fixing flange • 82 mm. dia. non-toxic black rubber membrane; the ATEX-version is in antistatic silicone rubber • Response sensibility: 50 gr min. in the middle, 20 mm. water pressure on membrane