• Measuring the velocity and flow rate of fluids in open channels, sewage transmission tunnels, inlets and outlets of water or wastewater treatment plants, and partially filled pipes.
• Capability to measure velocity with high accuracy from 0.6 to 9 meters per second.
• Resistant to sedimentation, corrosion, and abrasion with an IP68 protection rating.
• No need for periodic calibration and very low maintenance costs.
• No requirement to interrupt fluid flow in the channel for installation and commissioning.
• Excellent performance in sections where the channel surface is covered with wood or plastic coating.
• Outputs include Modbus/Analog current/Pulse/Internal data logger/3G-GPRS.

The RAVEN-EYES is a universal non-contact level/velocity flow sensor that can be connected to the RTQ flow logger series or the IFQ MONITOR’“. Optionally it can also be connected to any device using the Modbus ASCII communication protocol.
Velocity Measurement Method
Range Radar +0.08 to +1 fi m/s (bi-directional)
Accuracy: +0.1%, + zero stability
Zero Stability +0.02 m/s
Resolution 0.001 m/s

Optional Combined Level Measurement (Ultrasonic) Method
Range 0.00 to 1.7 m (with ULS-02/RAV-0002) 0.00 to 1.71 m (with UPS-0s/RAV-0006/)

Accuracy
+0.2% of reading (with ULS-06/RAV-0006)
+0.3% of reading (with ULS-02/RAV-0002) Includes non-linearity and hysteresis
Temp. Error max. 0.0d%/K
Resolution 1 mm

Optional Combined Level Measurement (Radar) Method
Range Radar 0.01 to 15 m
Accuracy +2 mm of reading
Resolution 1 mm

Optional Separate Level Measurement
Method: Any d-20 mA loop powered sensor

Flow Measurement
Method Conversion from surface velocity measurement to average velocity based on patent pending self- learning model using velocity distribution measurements
Conversion of water level and pipe size to fluid area/ultiplication of fluid area by average velocity to obtain the flow rate

Conversion Accuracy +5% of reading
Assumes pipe is 0 to 90% full

Communication
RS-d85 communications port with Modbus ASCII slave communication protocol

Technical Specifications
OUtpUts
d-20 mA
1 for validated surface velocity (vQP) or validated surface velocity including median filter (vQPMF)

Internal Temperature Measurement
Method Digital sensor
Range -CO° to 80º C

Internal Humidity Measurement Method Digital sensor Range
100%to %0

Internal Pressure Measurement
Method Digital sensor
Range 0 to1úi00 HPa

Auto diagnostic system using internal sensors (Humidity, pressure, temperature)
Material & Dimensions
Enclosure Dimensions

Weight
Polyurethane (PU)
422mm L, 140 mm W, 183 mmH
Vertical blocking when mounted: 300 mm
3,65 Kg (without the cable, level sensor and
mounting accessories)
Protection rate IPó8

Environmental Conclitions
Operating temperature range -30° to CO° C Storage temperature range -30° to 80° C

Certificatións Sensor
Sensor Coble
//aterial Length
CE

Polyurethane |acketed
Standard: 10 m
Optional: 20 m, 30 m or length as needed up to 300 m

• Sewer networks / Monitoring network channels
• Large sewage channels
• Capacity studies
• Combined Sewer Overflow (CSO) studies
• Flow and infiltration studies
• High-velocity flows
• Emptying tanks or reservoirs
• Wastewater treatment plants
• Measurement of inlet flow to the treatment plant
• Treatment plant or discharge outlet
• Measurement of industrial wastewater
• Measurement and discharge of stormwater
• Flow process control
• Rivers, channels, and irrigation
• Stormwater monitoring and compliance with standards
• Weather and hydraulic engineering
• Stormwater basin calculations
• Continuous measurement of surface waters
• Industries and hydroelectric power plants
• Industrial wastewater measurement
• Measurement of water and wastewater from production processes
• Measurement of high-suspended solids flows
• Cooling water flow measurement
• Monitoring for industrial compliance
• Measurement of flows in corrosive and erosive fluids

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