The Signature VM package delivers vessel-mounted AD2CP capabilities based on present-day technology

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1 The package delivers vessel-mounted AD2CP capabilities based on present-day technology Until now, ADCP current surveys have been complex and time-consuming processes. A successful current survey depends on highly skilled personnel and the hardware set-up is unique, and challenging, for each vessel. This leads to concerns regarding interfacing, synchronization, offsets and mounting. A miscalculation in connection with any one of these factors can lead to errors that affect the final velocity data quality. Nortek s vessel-mounted ADCP current survey package called opens up new and unprecedented opportunities to the community, while offering operational convenience and reduced complexity. Data quality can be safeguarded, and both errors and initial installation time can be substantially reduced by using an integrated system where each is module is pre-qualified

2 Highlights Applications Five beams for current and depth Outstanding bottom-track performance A coherent system that is quick and convenient to operate Coastal research Port and harbor mapping Studies of tidal currents Sediment transport studies

3 Technical specifications Water velocity measurements for 1000 Profiling range* Cell size 30 m m Max no. cells 128 Min. blanking Minimum accuracy 0.1 m 0.3% of the measured value ± 0.3 cm/s 0.1 cm/s 14 Hz 4 slanted at 25 degrees *) Maximum range depends on acoustic scattering conditions and transmit power. Water velocity measurements for 500 Profiling range* Cell size 70 m m Max no. cells 128 Min. blanking Minimum accuracy 0.5 m 0.3% of the measured value ± 0.3 cm/s 0.1 cm/s 6 Hz 4 slanted at 25 degrees *) Maximum range depends on acoustic scattering conditions and transmit power. Bottom velocity measurements for 1000 Single ping 3 m/s Long-term accuracy Minimum altitude Maximum altitude 0.5 cm/s ± 0.1% / ± 0.1 cm/s 0.2 m 30 m

4 Bottom velocity measurements for mm/s 4 Hz Bottom velocity measurements for 500 Single ping 3 m/s Long-term accuracy Minimum altitude Maximum altitude 0.5 cm/s ± 0.1% / ± 0.1 cm/s 0.3 m 70 m 0.01 mm/s 2 Hz Depth measurements for 1000 Max. range Vertical resolution / accuracy 1 vertical 2 Hz 30 m m / 1% of the measured value** **) Assuming a constant speed of sound Depth measurements for 500 Max. range Vertical resolution / accuracy 1 vertical 2 Hz 70 m m / 1% of the measured value** **) Assuming a constant speed of sound Echo intensity Sampling Resolution Dynamic range Same as velocity for slanted beams 0.5 db 70 db slanted beams 4 slanted at 25 degrees

5 Echo intensity Beam width 2.9 Other Temperature sensor range /accuracy -4 C to 40 C / 0.1 C Pressure Standard range Accuracy/precision Compass and tilt Data recording Data cable IO DC Input Piezo resistive m (inquire for options) 0.1% FS / better than 0.002% of full scale Solid-state magnetometer 16 GB (inquire for options) 20 m Ethernet cable (inquire for options) Ethernet V DC Environmental Operating temperature -4 C to 40 C Storage temperature -20 C to 60 C Shock and vibration IEC / IEC EMC approval IEC Depth rating Connectors Housing Material 300 m Bottom track is limited to surface vessels Straight fitted MCBH6F (Ethernet) Small instrument housing POM with titanium fasteners Rack-mount processing unit Processor/memory Hard disk Intel i7, 8 GB SSD 256 GB Operating system Windows 10 Housing Dimensions Interface box with UPS 19" rack-mountable 1 HE 480x45x220 mm (19" rack-mountable 1 HE) 600 VA 230 V AC

6 Rack-mount processing unit Dimensions Total weight Connections Operator control LCD panel 480x90x220 mm (19" rack-mountable 2 HE) 10 kg (computer and UPS) Power,, GNSS, Ethernet, USB, HDMI, VGA Optional 19" rack mount Optional 19" rack mount Nortek acquisition software Acquisition Timing Configuration Display Status Output - binary GNSS - Advanced navigation protocol < 0.6 s, IEEE1588/PTP for absolute time stamping (GNSS/) (partly) GNSS Advanced navigation Vessel track, Vessel track in map, Bottom-track velocity, Velocities East / North, Echo amplitude, Echo correlation, Vertical depth + GNSS NMEA data string online ASCII CSV, MATLAB and MATLAB VMT file export offline GNSS compass Brand and model Position accuracy(with dgnss) / postprocessed Advanced navigation GNSS compass Horizontal: 0.6 m / 0.01m, Vertical: 1.0 m / 0.02 m Heading accuracy / post-processed 0.2 / 0.09 Supported navigation systems Motion GPS L1, GLONASS G1, GALILEO E1, Beidou B1 9-axis IMU Communication Ethernet 10/100 Timing Protocol PTP, NTP timeserver functionality NMEA0183 AN Packet protocol, TSS1, Simrad