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EA640

EA640 - single beam echosounder to full ocean depths

EA640 is a high performance hydrographic wideband single beam echo sounder. The EA640 is developed for hydrographic use in deep to medium depth waters.

Description

EA640 features

  • Applications from extreme shallow to full ocean depths
  • High performance hydrographic depths from 12 kHz to 500 kHz
  • Available with high power output from 10 kHz to 50 kHz
  • Extensive range of transducer interfaces, both Kongsberg transducers and thirdparty transducers
  • CW and FM pulse forms
  • True raw data logging
  • World class bottom detection
  • Bottom slope information
  • Sound velocity compensation from profile
  • Bottom gain to enhance the sub-bottom information
  • Spectrum information for noise measurements
  • Map display to track your coverage
  • Windows 10

Wideband hydrographic echo sounder for full ocean depths

EA640 is a high-precision deep-water hydrographic single beam echo sounder for use in all water depths, from very shallow to full ocean depths. Using the WBT wideband transceiver unit it simultaneously operates with several different transducers ranging from 12 kHz for the deepest waters up to 500 kHz for very shallow depths. For low frequency transducers below 50 kHz the WBT is available as a high-power system, ensuring enough transmitted power to reach the deepest spots of the ocean. World class bottom detection algorithms ensures reliable high-precision depth determination. Bottom slope information is also provided.

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  • Questions about price, availability, and/or retailers
  • Questions about technical specifications and usage
  • Questions about suitability for your project or application

Specifications

General

Year of initial development

1998

Min. external DC power [V]

12

Max. external DC power [V]

15

Min. external AC power [V]

110

Max. external AC power [V]

220

Weight in air [kg]

5

Width [m]

0.438

Length [m]

0.213

Height [m]

0.084

System integration

Remote operation capability

Y

Supported external data inputs

heave, position, roll & pitch, 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

Tablet PC, Windows Mobile, Other

Max. depth of operation [m]

11000

Min. frequency [kHz]

10

Max. frequency [kHz]

500

Number of simultaneous frequencies

4

Min. power output [W]

50

Max. power output [W]

2000

Depth resolution [m]

0.01

Min. pulse length [ms]

0.032

Max. pulse length [ms]

16

Software

EA640 software

Ping Rate

Max 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

Performance

Display range

1 to 12500 m

Transducer range

10 kHz to 500 kHz

Sub-bottom range

10 khz to 30 kHz

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 to deep water hydrographic surveys. May also be used for sidescan sonar survey, sub-bottom profiling and hydrophone applications

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

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

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

Logging unit

Portability

Portable

Documents

Brochure
ea640-data-sheet.pdf
758.2 KB
ea640-data-sheet.pdf

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