VM Operations - 333 kHz ADCP
Vessel-Mounted Current Profiler
Assists operators on vessels to make informed decisions during subsea operations in areas affected by underwater currents
Nortek
Rud, NO
Description
In recent years, offshore operations have moved farther offshore, often into challenging operational environments. Variable local current and tide patterns make for increased risk, uncertainty, and operational costs. Subsea operations can be limited by these challenges without real-time knowledge of currents.
Using Nortek's renowned Signature ADCP technology, the VM Operations is designed to give offshore operators clear and detailed information on current speed and direction from the vessel to the seafloor. This situational awareness improves efficiency during vessel time. Data can be stored and analyzed during future project planning.
- Concave transducer design allowing for flush mounting, independent of salinity changes
- A 333 kHz frequency for an optimal balance in required range, resolution and accuracy for a wide range of operations at the coastal continental shelf
- Outstanding bottom-track performance, even under challenging conditions
- Robust sea valve allows mounting without increased draft
- In-water serviceable, diverless, concept via the DNV type-approved sea valve
- Unique, easy-to-use graphical ADCP interface for the operator, superintendent or client
Do you have questions about this product?
- Questions about price, availability, and/or retailers
- Questions about technical specifications and usage
- Questions about suitability for your project or application
Specifications
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General
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Year of last update
2023
Length [m]
0.795
Width [m]
0.34
Height [m]
1.05
Weight in air [kg]
97
Min. operating power [V]
24
True Bottom Tracking Capability
Y
Max. range to bottom [m]
150
Processor/memory
Intel i5/8 GB
Hard disk
SSD, 256GB
Operating System
Windows 10
Housing Material
19" rack-mountable 2 HE
Dimensions
482x87x400 mm
Connections
Power, Signature ADCP, 2x DisplayPort, 1x LAN, 2x USB, 4x RS232, RS422, RS485
Total Weight [kg]
97
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Other specifications
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Real-time interfacing
VM Operations acquisition software
Min. external power [Voltage]
100
Max. cable length [m]
20
Data acquisition software and processing software
VM Operations acquisition software
Max. external power [Voltage]
240
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Auxiliary Sensors
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Pressure
Y
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Deployment method
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Moving vessel
Y
Bottom mount
N
Inline string mooring
N
Data Buoy
N
Marine structures
N
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Doppler Current Profiler
-
Center working frequency [kHz]
333
Max. typical profiling range [m]
100
Number of beams
4 slanted beams
Nadir angle [deg]
25
Max. Number of cells per beam
128
Min. blanking distance [m]
0.5
Min. cell size [m]
1
Max. cell size [m]
6
Compensation for sound speed
Y
Minimum accuracy
0.3% of the measured value
Long-term accuracy
+-0.3%
Maximum sampling rate for Water velocity measurements
2 Hz
Maximum sampling rate for Bottom velocity measurements
2 Hz
Single ping std
0.5 cm/s
Minimum altitude
0.3 m
Maximum altitude
150 m
Velocity resolution of Bottom velocity measurements
0.01 mm/s
Velocity resolution of Water velocity measurements
0.1 cm/s
Pressure
Piezoresistive
Compass and tilt
Solid state magnetometer / accelerometer
Housing
Short, no room for battery
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Standard Sensors
-
Temperature: min [°C]
-4
Temperature: max. [°C]
40
Temperature: uncertainty [°C]
0.1
Compass type
Solid State
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Data and Software
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Acquisition
VM Operations acquisition software
Configuration
Signature VM ADCP, Alignment offsets, outputs
Display
Vessel track in map, Bottom-track magnitude, direction and depth: (SOG), (COG), Speed Through Water (STW), Mean water column magnitude and direction, 4x depth selectable layer (magnitude and direction), 3D velocity profile (magnitude and direction), 2D vessel cross track current, 24h mean current and direction history (tides), Notes, Echo correlation, Echo amplitude
Status
Signature VM BT and VB + NMEA GGA, HDT, VTG
Output data
NMEA data formats or binary AD2CP with embedded NMEA. DF21 BT proprietary (optional)
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Application
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Typical applications
Offshore operations
