RAVEN-EYE0 pages

RAVEN-EYE®
New Generation Open Channel
Non-Contact Radar Flow Meter

Technical Specifications
The RAVEN-EYE® is a universal non-contact level/velocity flow
sensor that can be connected to the RTQ flow logger series or
the UNI-TRANSTM monitor & transmitter. Optionally it can also be
connected to any device using the Modbus ASCII communication
protocol.
Velocity Measurement
Method
Radar
Range
±0,15 to ±9 m/s
(bi-directional)
Accuracy
± 0,5%, + zero stability
Zero Stability
± 0,02 m/s
Resolution
0,001 m/s
Optional Combined Level Measurement (Ultrasonic)
Method
Ultrasonic pulsed echo
Range
0,00 to 1,75 m (with ULS-02)
0,00 to 5,75 m (with ULS-06)
Accuracy
± 0,2% of reading (with ULS-06)
± 0,3% of reading (with ULS-02)
Includes non-linearity and hysteresis

Temp. Error
Resolution
The RAVEN-EYE® is the newest non-contact RADAR area/velocity
flow meter for open channel flow measurements from Flow-Tronic.
The new sensor combines advanced digital Doppler radar velocity
sensing technology with most modern and powerful DSP processor
technology allowing a patent pending self-learning average
velocity calculation. The need for empirical models or time
consuming site calibration become obsolete.
Use the RAVEN-EYE® in combination with the RTQ flow logger
series for portable monitoring and for permanent monitoring with
the IFQ Monitor or UNI-TRANSTM which display flow rate, velocity,
level and much more.
The RAVEN-EYE® provides the user with highly accurate flow
measurements under a wide range of flow and site conditions. By
measuring the velocity of the fluid above the water surface, the
RAVEN-EYE® eliminates accuracy and reliability problems inherent
with submerged sensors, including sensor disturbances and sensor
fouling.
The RAVEN–EYE® is ideal for monitoring flows from corrosive
liquids or with high solids content.

max. 0,04%/K
1 mm

Optional Combined Level Measurement (Radar)
Method
Radar
Range
0,01 to 15 m
Accuracy
± 2 mm of reading
Resolution
1 mm
Optional Separate Level Measurement
Method:
Any 4-20 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. Multiplication of fluid area by average
velocity to obtain the flow rate.
Conversion Accuracy:

±5.0% of reading
Assumes pipe is 0 to 90% full

Communication
RS-485 communications port with Modbus ASCII slave
communication protocol

Rue J.H. Cool 19a l B-4840 Welkenraedt l BELGIUM

www.flow-tronic.com

Tél.: +32 (0)87 899 799 l Fax: +32 (0)87 899 790
E-mail: info@flow-tronic.com