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Flow 5 
The Flow 5 open channel flowmeter provides comprehensive flow 
monitoring with data logging and control functions for a complete range of 
flumes, weirs and channels. Flow calculations to the British Standard 
BS3680 are available within the software together with calculations for a 
wide variety of other primary elements. For applications where there is no 
primary element, the optional 4-20mA input can be used to connect a 
Doppler Velocity Sensor (available from Pulsar) to enable the calculation of 
Flow Q = Velocity x area, for a wide range of channel shapes. Also, 
available within the unit is a customised 32-point calibration routine which 
also permits the flow measurement of non - standard flumes and weirs.    
 
The Flow 5 can measure from 0.0 m to 15 m from the transducer to the 
surface being monitored, dependent on the transducer used. The Flow 5 can 
show details of level, space, distance, head or flow on the display along 
with a totaliser if desired. 
The five user-definable relays with individual setpoints can be programmed 
to activate devices such as pumps, samplers, remote totalisers or other 
control equipment.  The 4-20 mA output is fully programmable to provide 
an output relative to level, space, distance, head or flow.