Endress+Hauser FLOWSIC200

Ultrasonic flow measurement instrument

FLOWSIC200 is an ultrasonic air velocity meter (non-contact measurement) for use in tunnels, ventilation shafts, and exhaust ducts. It is designed to determine the average flow velocity across the entire cross-section, flow direction, and air temperature. 

The device is used for ventilation control in road and railway tunnels, smoke detection, and air supply monitoring.

Key features:

• absence of moving parts
• resistance to harsh operating conditions
• long service intervals
• high reliability even at low flow rates

Flowsic200 Datasheet:

• Measuring Principle: Ultrasonic, Differential Transit Time
• Measured Values: Flow Velocity/Flow Direction/Air Temperature
• Velocity Range: 0 … ±20 m/s
• Pressure: –100 hPa to +100 hPa (relative pressure)
• Output Signals: 4-20 mA (electrically isolated)
• Digital Interfaces: RS-485 (Modbus RTU), relay outputs (contacts) for status/error/warning signals
• Materials: Titanium, stainless steel, or cast alloy (depending on version)
• Media Temperature Range: –196 °C to +280 °C (in some versions)