Singlebeam Echosounders - SBES

EA440

WIDE BAND HYDROGRAPHIC ECHO SOUNDER

EA440 is a high performance hydrographic wide band single beam echo sounder. The echo sounder is developed for hydrographic use in shallow to medium depth waters. It supports portable and hull mounted sidescan and sub-bottom light for shallow waters.

Kongsberg Discovery

Horten, NO

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Description

A variety of highly efficient transducers are available to suit all of your operational needs; including depth observations from extreme shallow (0.2m) down to 3000 m water depths, side-scan sonar imaging from hull-mounted side-looking transducers, as well as sub-bottom profiling functionality, all in one easy-to-use system.

EA440 FEATURES

Applications from 0.2 m to 3000 m water depths
High performance hydrographic depths observations from 30 kHz to 500 kHz
Sidescan sonar application from 100 kHz to 500 kHz
Sub-bottom profiler application from 10 kHz to 30 kHz
Available with high power output from 30 kHz to 50 kHz
Extensive range of transducer interfaces, both Kongsberg transducers and thirdparty transducers
Splash proof all-in-one hardware setup available (EA440SP)
CW and FM pulse forms
True raw data logging
World class bottom detection
Spectrum information for noise measurements
Including map display for tracking of your vessel

The new generation wide band hydrographic Echo Sounder

The EA440 is a new hydrographic multi frequency echo sounder with wide band technology. The EA440 has been developed for use in shallow to medium depth waters. A variety of highly efficient transducers are available to suit all of your operational needs, from extreme shallow (0.2m) down to 3000 m water depths.

The system supports both portable and hull-mounted side scan, and sub-bottom light for shallow waters. The operating software is in accordance with the new KONGSBERG standard MMI and it has an easy and intuitive user interface with extensive display capabilities.

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Specifications

General: Year of initial development

1998

Weight in air [kg]

5

Width [m]

0.438

Length [m]

0.213

Height [m]

0.084

Min. external DC power [V]

12

Max. external DC power [V]

15

System integration: Remote operation capability

Y

Supported external data inputs

heave, position, tide

Marking of events and other annotations

Y

Real-time sound velocity and temperature profile inclusion

Y

Real-time coupling to survey/post-processing software

Y

Data displayed in real time

Depth; along-track slope; second layer detection with high/low frequency

Mode of operation: Software platform

Other, Tablet PC, Windows Mobile

Max. depth of operation [m]

3000

Min. frequency [kHz]

30

Max. frequency [kHz]

500

Number of simultaneous frequencies

4

Depth resolution [m]

0.01

Max. sounding rate [Hz]

25

Sound Velocity

Manual (1400 to 1700 m/s) • Calculated from temperature and salinity • Calculated from temperature sensor and salinity • Read from sound speed probe

Ping Rate

Maximum 40 per second

Pulse lengths and maximum resolution

500 kHz: CW 32 to 512 µs, FM, accuracy: 0.3 cm • 200 kHz: CW 64 to 1024 µs, accuracy: 0.6 cm • 38 kHz: CW 256 to 4096 µs, accuracy: 2.4 cm • 15 kHz: CW 512 to 8192 µs, accuracy: 4.9 cm • 10 kHz: CW: 1 to 16 ms, accuracy: 9.8 cm

Power Supply

Voltage requirement: 12 to 15 VDC, 5A A suitable power supply for 220/110 VAC operation is provided with the delivery.

Min. depth of operation [m]

0.2

Min. power output [W]

50

Max. power output [W]

500

Min. pulse length [ms]

0.032

Max. pulse length [ms]

16

Operating System

Windows 10

Software

EA440 software

Performance: Display range

1 to 12,500 m

Transducer range

10 to 500 kHz

Sub-bottom range

10 to 30 kHz at range 300 m

User Interface: Main control

Mouse, trackball or touch screen on a comprehensive menu system

Menu languages

English, German, French, Icelandic, Norwegian, Spanish

Other specifications: Internal data logging details

HDD

Main use of the system

Shallow and mid water hydrographic surveys, side scan sonar and sub-bottom profiling. Can also be used with hydrophone.

Output: Data output options

Raw; corrected echogram data

Data output formats

NMEA; Supported datagram formats for depth output: DBS, DBT, DPT; Simrad, Atlas and Hymas; Export file formats: Raw data, xtf, SEG-Y, xyz, echogram and EA400 formats

Connectors

LAN, RS232, USB

Data output for sea floor classification

N

Environmental: Min. operating temperature [°C]

0

Max. operating temperature [°C]

50

Min. storage temperature [°C]

-40

Max. storage temperature [°C]

70

Relative humidity

5 to 95% relative non-condensing

Interface and User Interaction: Transceiver

Transceiver: Ethernet communication

Ethernet

Ethernet to ship’s network

Sensors

GPS, gyro, motion, speed, temperature, and sound speed

Remote control

Remote stop/start logging available on serial line or network