FLOWSIC200
FLOWSIC200

The FLOWSIC200 is used for the contact-free and accurate measurement of flow velocity and flow direction inside tunnels or exhaust ventilation ducts. Ultrasonic technology provides the cross-sectional mean average value of the flow velocity. This device is used for measurement necessary for optimal ventilation control and reducing running costs to a minimum when air flow is dictated by climatic conditions or by traffic.

In case of fires in tunnels the accurate, reliable and representative measurement of air velocity and direction across the tunnel is mandatory. This is the only way to check reliably the smoke propagation and to achieve the necessary information for optimal control of the ventilation system.

At a glanceVery large measuring distances possibleNon-contact measurementExtremely rugged components made of titanium, stainless steel, or die castVersions for very corrosive tunnel atmospheresDetermination of flow directionNo mechanical moving partsYour benefitsRepresentative measurement across total tunnel widthVery reliable measurement, compared with punctual measurement methodsAccurate measurement even of very low flow velocitiesLong maintenance intervals of up to 5 yearsLow operating costs due to reliable operation and low maintenanceHigh availability of devices and, therefore, of measurement data also

Measured values	Flow velocity, Direction of flow, Temperature
Measurement principle	Ultrasonic transit time difference measurement
Measuring ranges Flow velocity 0 ... ± 20 m/s
Accuracy ± 0.1 m/s Depending on application
Diagnostics functions	Internal zero and reference point check Extended device diagnosis via SOPAS ET software
Nominal pipe size FLOWSIC200 M, FLOWSIC200 H-M 3.5 m ... 22 m FLOWSIC200 H 3.5 m ... 35 m
Ambient temperature –40 °C ... +60 °C
Storage temperature	–40 °C ... +70 °C
Ambient humidity	≤ 100 % Relative humidity
Conformities	RABT 2006 ASTRA "Guideline - Ventilation of Road Tunnels" (2008) RVS 09.02.22
Electrical safety	CE
Enclosure rating IP66
Operation	Via LC-display (option) or software SOPAS ET
Model	FLSE200-M: aluminium cast housing, aluminium sensor FLSE200-H-M/-H: stainless steel enclosure, titanium sensor
Dimensions (W x H x D)	For details see dimensional drawings
Mounting	Typical hight above lane: 4,2 m; 45° ... 60° to tunnel axis
System components	2 x FLSE200 sender/receiver unit 1 x MCU control unit 2 x connection unit 2 x Connection cable 2 x wall brackets

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