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Tunnel Sensors | |||||||||||||||||||||||||||||||||||||||||||
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Technical data | |||
Measuring principle: | Ultrasonic propagation time delay measurement | ||
Measuring ranges: | Flow velocity: -20 ... 20 m/s | ||
Remark: | Continuously adjustable | ||
Measuring paths: | 5 ... 40 m depending on device type- larger measuring paths on request | ||
Ambient temperature: | -40 ... 60 °C | ||
Ambient humidity: | 0 ... 100 % relative humidity | ||
Conformities: | ASTRA "Guideline - Ventilation of Road Tunnels" (2004, V1.2), RABT 2006, RSV 09.02.22 | ||
Electrical safety: | CE | ||
Enclosure rating: | Sender/receiver units: IP 66, MCU control unit: IP 65 | ||
Analogue outputs: | 1 output: 0/2/4 ... 22 mA, 750 Ω- additional outputs if using I/O modules | ||
Analogue inputs: | 2 inputs: 0 ... 20 mA , 0 ... 10 V additional inputs if using I/O modules | ||
Digital outputs: | 5 outputs: 120 V AC, 1 A 30 V DC, 2 A floating- for status signals- extendible by additional I/O modules | ||
Digital inputs: | 4 inputs for connection of floating contacts- extendible by additional I/O modules | ||
Interfaces: | RS-232, RS-485 (option), USB (service interface) | ||
Bus protocol: | Ethernet TCP/IP (option), MODBUS (on request), PROFIBUS-DP (option) | ||
Operation: | Via LC-display or software SOPAS ET | ||
Device types: | Aluminium cast housing, Stainless steel housing | ||
System components: | Connection box, Sender/receiver units, MCU control unit | ||
Test functions: | Internal zero and reference point check | ||
Mounting: | Typical hight above lane: 4,2 m- 45° ... 60° to tunnel axis | ||
Note: | The scope of delivery depends on application and customer specifications. |