Aperçu
The DVL333 is a universal Doppler Velocity Log that combines compact design with unprecedented functionality. It can fly higher in the water column and closer to the seabed than similar equipment, and maximum operational depth is 6000 m. This 333 kHz Doppler Velocity Log is used by industry leaders in the subsea market because of its high accuracy and state-of-the-art technology.
- Currents
- Bottom track
Points forts
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Bottom track from 0.3-380 m range
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Per-ping and per-beam data quality estimates
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6000 m operational depth
Utilisation
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Highly accurate subsea surveys
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AUVs with long missions or high accuracy requirements
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Easy integration with leading inertial navigation systems (INS)
Integration
With the longest range of the Nortek DVL family, this 6000m rated survey-grade DVL is equipped for easy integration with leading INS systems to create a robust, reliable navigation system with maximized range. As with all of Nortek's DVLs, the DVL333 Compact is compatible with top control software including EIVA, Seebyte and Greensea.
Reliability
Tested in demanding conditions in the Oslo fjord, the DVL333 Compact has a proven track record in areas of variable bathymetry and conditions. The water track feature provides a velocity backup if the bottom becomes out of range. The spectrum analyzer assures thorough system level integration.
Results
The DVL333 Compact provides reliable navigation in the most demanding conditions across multiple platforms. The addition of simultaneous current profiles improves operational safety and allows opportunistic oceanographic data collection.
Single ping std @ 1.5 m/s |
0.8 cm/s at 1/2 max altitude |
Long-term accuracy (1) |
±0.1% / ±0.1 cm/s |
Minimum altitude |
0.1 m |
Maximum altitude |
375 m (2) |
Velocity resolution |
Better than 0.01 mm/s |
Maximum ping rate (3) |
8 Hz |
(1) Following standard calibration procedures |
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(2) Bottom-track distance dependent on bottom type |
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(3) Inquire for more options |
Minimum accuracy |
0.3% of measured value ± 0.3 cm/s |
Minimum range |
4.0 m |
Minimum accuracy |
0.3% of measured value ± 0.3 cm/s |
Velocity resolution |
0.1 cm/s |
Interval |
User-specified Nth ping |
Maximum range |
100 m |
Blanking |
0.5 m |
Cell size |
0.5-4.0 m |
Max # cells |
140 |
Operating temperature |
-4 to +40 °C |
Storage temperature |
-20 to +60 °C |
Vibration |
IEC60068-2-64 |
EMC approval |
IEC/EN 61000-6-2, 61000-6-3 |
Depth rating |
6000 m |
Weight |
7.0 kg |
Weight in water |
4.1 kg |
Height |
203 mm |
Diameter |
ø186 mm |
Frequency of operation |
333 kHz |
Beam width |
4.3° |
Configuration |
4-beam Janus array convex transducer, 25° beam angle |
Internal memory |
16 GB / 64 GB optional |
Bandwidth |
25% centered at transmit frequency |
Serial (either serial or ethernet) |
Configurable RS-232 or RS-422 Subconn connector, 8-pin male |
Ethernet |
10/100 Mbits Auto MDI-X. TCP/IP, UDP/IP, HTTP protocols. Fixed IP / DHCP client /Auto IP address assignment. UPnP and Nortek proprietary instrument discovery over Ethernet. IEEE1588/PTP and NTP for absolute time stamping. Multiple simultaneous data format transmission possible. |
Data formats |
Nortek proprietary w/ 1 ms time stamp accuracy, NMEA0183, 0D0, PD4, PD5, PD6 |
Trigger |
Internal 1, 2, 3, 4, 5, 6, 7 or 8 Hz or Trigger In. Trigger option through command (Ethernet or serial) External TTL or 485 lines: (configurable Rising/Falling/Edges) |
Pressure |
0.1% FS /precision better than 0.002% of full scale per sample |
Temperature |
-4° to +40 °C ± 0.1 °C |
DC input |
12-48 V |
Maximum continuous current |
1.5 A |
Average power |
4.0 W* |
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Standard models |
POM and titanium housing |
DVL333 - 300m
4 beam head
Plastic housing, 300m
16 GB SD card data logger
64 GB
Pressure sensor 0-10 m, 0,1%
Pressure sensor 0-20 m, 0,1%
Pressure sensor 0-30 m, 0,1%
Pressure sensor 0-50 m, 0,1%
Pressure sensor 0-100 m, 0,1%
Pressure sensor 0-200m, 0,1%
Pressure sensor 0-300m, 0,1%
Cable, 8 pin female ethernet AD2CP with RS485 trigger
Cable, 8 pin female serial AD2CP with RS485 trigger
Cable, 8 pin female ethernet AD2CP with TTL trigger
Cable, 8 pin female serial AD2CP with TTL trigger
Bottom track
Current profiles, 4 beams
