Nortek DVL 333k Hz 300 side
Nortek DVL 333k Hz 300 front
Nortek DVL 333k Hz 300 side2
Nortek DVL 333k Hz 300 side
Nortek DVL 333k Hz 300 front
Nortek DVL 333k Hz 300 side2

Subsea navigation

Compact DVL500, 300 m copy

Bottom-track from 0.3 to 380 m range; 300 m operational depth

概要

The DVL500 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. This 500 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

ハイライト

  • Bottom track from 0.3-380 m range
  • Per-ping and per-beam data quality estimates
  • 300 m operational depth

使用法

  • Highly accurate subsea surveys
  • AUVs with long missions or high accuracy requirements
  • Easy integration with leading inertial navigation systems (INS)

Integration

With the longest range of the Nortek DVL family, this 300m 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.

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Bottom velocity

Single ping std @ 3 m/s

0.5 cm/s

Long-term accuracy

±0.1% / ±0.1 cm/s

Minimum altitude

0.3 m

Maximum altitude

>380 m2)

Velocity resolution

Better than 0.01 mm/s

Maximum ping rate

8 Hz

Water tracking

Minimum accuracy

0.3% of measured value ± 0.3 cm/s

Minimum range

4.0 m

Current profiling

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

Environmental

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

Mechanical

Depth rating

300 m, 1000m available as custom design

Weight

3.5 kg

Weight in water

0.5 kg

Height

203 mm

Diameter

ø186 mm

Hardware

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

Frequency of operation

500 kHz

Bandwidth

25% centered at transmit frequency

Interfaces

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, Variants of PDx

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)

Sensors

Pressure

0.1% FS /precision better than 0.002% of full scale per sample

Temperature

-4° to +40 °C ± 0.1 °C

Power

DC input

12-48 V

Maximum continuous current

1.5 A

Average power

4.0 W*

  • Power based on 1 Hz sampling and altitude with greatest transmit pulse.

Materials

Standard models

POM housing

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