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ChannelMaster Horizontal ADCP

ChannelMaster Horizontal ADCP. ChannelMaster HADCP. 2-beam Horizontal Broadband ADCP Smaller cells More cells Lower noise Lower power Better data. ChannelMaster HADCP Applications. Rivers – Index Velocity Method Velocity, stage, discharge monitoring

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ChannelMaster Horizontal ADCP

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  1. ChannelMaster Horizontal ADCP

  2. ChannelMaster HADCP • 2-beam Horizontal Broadband ADCP • Smaller cells • More cells • Lower noise • Lower power • Better data

  3. ChannelMaster HADCPApplications • Rivers – Index Velocity Method • Velocity, stage, discharge monitoring • Used where simple stage-discharge relationship fails • Backwater • Tidal • Locked navigation channels • Pumped canal systems

  4. ChannelMaster HADCPApplications • Ports and Harbors and Waterways • Design – monitor currents before construction • Operation • Vessel traffic safety - currents • Docking

  5. ChannelMaster HADCPApplications • Environmental • Velocity or flow triggered sampling • Velocity, flow warning • Hydraulics Research • Circulation studies in lakes, estuaries • Large scale turbulence in rivers

  6. ChannelMaster HADCPApplications • Offshore • Monitor current near oil rigs or drill ships • Monitor current near mooring buoys • Research

  7. ChannelMaster Description • 2 profiling beams • x-y velocity components • 1-128 cells • Select what is best for your application • Narrow beam angle – ± 20 degrees • Increases range • Better signal/noise ratio than 25 deg. • Reduced boundary interference • More homogeneous flow

  8. ChannelMaster Description • Standard sensors • Temperature – need for speed of sound • Pitch and Roll – need for installation • Depth • 600 kHz vertical acoustic beam • ± 2mm accuracy • Pressure – ‘reality check’ for acoustic

  9. ChannelMaster Description • Communications • RS-232/RS-422 • SDI-12 • Standard - 27 values per measurement • One instrument at a time • Concurrent – 20 values per request • Simultaneous instruments

  10. ChannelMaster Description • Internal 2 MB recorder • 9-18 Vdc power, external • 25 meter cable • Mounting plate included • Allows removal and replacement without losing alignment

  11. Competitor Comparison

  12. Why Buy RDI? • Performance • Patented Broadband processing • For same cell size, reach same accuracy in less time, with less energy • For same energy, get better accuracy • Use smaller cells where necessary • Get more cells for detail if desired • >15 pings/second with 1200 kHz • All beams pinged simultaneously

  13. Why Buy RDI? • Flexibility • One RDI can cover a wide range of applications • Smaller minimum cells allows use in more shallow water • More cells allows use in wider channels

  14. Why Buy RDI? • Versatility • 1200 kHz ChannelMaster matches or beats the maximum range and minimum cell sizes of : • 1.5 and 3.0 MHz Sontek SL or • 1.0 and 2.0 MHz Nortek EasyQ/EasyV • And allows use of up to 128 cells • 600 kHz ChannelMaster matches or beats the maximum range and minimum cell sizes of • 1.5 and 3.0 MHz Sontek SL or • 1.0 and 2.0 MHz Nortek EasyQ/EasyV • And gives you up to 90 meter range

  15. Why Buy RDI? • Versatility • 300 kHz ChannelMaster matches or beats the maximum range and minimum cell sizes of: • 500 kHz and 1.5 MHz Sontek SL • 1.0 and 2.0 MHz Nortek EasyQ/EasyV • And gives you up to 300m range!

  16. Range Comparisons

  17. Why Buy RDI? • Broadband ADCP Performance • Patented technique • Single ping standard deviation ~7 times better than Narrowband using same cell size: i.e.: 50 narrowband pings = 1 broadband ping • Less time, less energy, needed to reach desired accuracy – save money on solar cells and batteries. • Inland applications are often low velocity: narrowband may need to average for minutes to achieve accurate result – this may cause a bias during changing flow conditions

  18. Why Buy RDI? • 20 degree beam angle • Fundamental assumption of constant flow at any cell range • Good in open ocean, less good in rivers • Narrower beam angle reduces effects of inhomogeneous flow – unmeasured and uncorrected bias. Most important at far end of range.

  19. Who has them installed? • China > 100 • Mexico > 120 • Great Britain > 25 • USA >70 • Mexico – specified after 6 month comparison vs Sontek

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