Navigation

DVL 333

300 m

Bottom-track from 0.1 to 375 m range; 300 m operational depth

Bottom track from 0.1-375 m range
Per-ping and per-beam data quality estimates
No change in form factor compared to higher-frequency options

Download guide to Nortek DVLs Go to Technical Specifications

Overview

The DVL 333 is a long-range Doppler Velocity Log that benefits from increased range with no compromise in performance or form factor. It allows vehicles to maintain bottom lock in a greater range of environments, increasing mission duration on long-range subsea and surface vehicles. This 333 kHz DVL is used by innovators in the uncrewed vehicle sector looking to expand vehicle capabilities into new environments.

Download our guide to Nortek DVLs here.

Currents
Bottom track

Highlights

Bottom track from 0.1-375 m range
Per-ping and per-beam data quality estimates
No change in form factor compared to higher-frequency options

Usage

Large UUVs / AUVs operating at high altitudes
USVs and crewed surface vessels requiring redundant navigation input
Increase range of vehicles with existing DVL500 without vehicle redesign

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 DVL 333 is compatible with top control software including EIVA, Seebyte and Greensea.

Reliability

Tested in demanding conditions in the Oslo fjord, the DVL 333 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 DVL 333 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.

Bottom velocity

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 (export-controlled), >1% (license-free)
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
	(2) Bottom-track distance dependent upon bottom type
	(3) Inquire for more options

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
	*Dependent on measurement conditions

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
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
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. PD0, 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)

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 (4)
	(4) Power based on 1 Hz sampling and altitude with greatest transmit pulse

Materials

Standard models	POM housing

Technical drawings

DVL 333 300m General Arrangement (2024 onward) Download

DVL 333 300m - OEM - General Arrangement (2024 onward) Download

DVL 333 300m General Arrangement (pre 2024) Download

Approvals

Declaration of conformity Download

End-use declaration

End-use declaration for export license application Download

Recycling & Disposal Guidelines

Recycling & Disposal Guidelines Download

Main product

DVL 333 - 300m

Probe type / Head

4 beam head

Housing

Plastic housing, 300m

Memory

16 GB SD card data logger

64 GB

Pressure sensors

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%

Cables

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

Other

Bottom track

Current profiles, 4 beams

Support resources

DVL

New to subsea navigation?

User stories Subsea navigation

Nortek DVL adapted to smaller underwater vehicles

Educational videos Subsea navigation

Improving subsea navigation with Nortek's state-of-the-art DVLs

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