Technical Parameters Parameter Specification Model Fisher 8580-95 Type Pneumatic Paddle Wheel Level Switch Operation Point Level Detection (High or Low Level Alarm) Output Signal Pneumatic On/Off (e.g., switches an output from 0 to a supply pressure, typically 20-100 psig) Supply Air Pressure 20 to 100 psig (1.4 to 6.9 bar) Air Consumption Minimal; only consumes air when the output state changes or if there is a leak. Power Supply 115 VAC, 50/60 Hz (standard for the motor). Other voltages available. Operating Principle Motor-driven paddle with torque-sensitive mechanical clutch. Process Connection 1-1/2" NPT (standard) Enclosure Rating NEMA 4 (IP65) (weatherproof and dust-tight) Material in Contact with Process Aluminum (standard for housing and paddle). Stainless Steel shaft and options available. Temperature Limits -20°F to 160°F (-29°C to 71°C) Max Material Bulk Density Typically up to 60 lb/ft³ (960 kg/m³)
