EM 2040C Dual (MKII)

MULTIBEAM ECHO SOUNDER

The EM 2040C MKII Dual is a shallow water multibeam echosounder based on the EM 2040 technology. It is an ideal tool for any high-resolution inspection and mapping applications, and with two small circular transducer heads it's well suited for any type of installation, portable or permanently, hull or bow/side-mounted. With the release of the EM 2040 MKII series, KONGSBERG MARITIME has upgraded the hardware and software to increase the swath and improve the data quality of the EM 2040 series.

Kongsberg Discovery

Horten, NO

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Description

FEATURES:

• High resolution

• Wide frequency range

• CW and FM chirp

• Roll and pitch stabilisation in realtime

• Yaw stabilisation with dual head in realtime

• Nearfield focusing - both on transmit and receive

• Short pulse lengths and large bandwidth

• Seabed image as standard

• Depth rated to 50 m

• Easy to install

• Water column display and logging

• Single or Dual Head for increased swath

• Single or Dual swath for increased density or for increased survey speed

• Extra detections

• Hull unit

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Specifications

Physical properties of transducer head: Length [m]

0.33

Width [m]

0.33

Height [m]

0.12

Min. external power [V]

115

Max. external power [V]

230

Max. power consumption [W]

70

Weight in Air

37.6 Kg

Weight in Water

16.8 Kg

Speed of sound: Real-time correction of refraction at transducer head

Y

Real-time integration of SV-profile

Y

Explanation of SV-profile application process

Calculation of each sounding is according to Schnells law of refraction, in real time

Maintenance criteria: Mean time before failure [hr]

2000

Mean time to repair [hr]

1

Interfaces: Compatible software

SIS, Qinsy, HYPACK, EIVA, Fledermaus, CARIS and others.

Compatible hardware

Sound velocity at transducer; Sound Velocity profile; Position; Heading; 1PPS; Single beam echo sounder (optional)

Real-time access procedure

Realtime visualization of bathymetric data; both raw data and gridded data in 2D and 3D; swath; quality of each beam; water column; seabed image; attitude data; 3D waterfall

Motion compensation: Motion sensors compatible to the system

Seatex MRU 5; Seapath 130/380; Applanix POS/MV; and other sensors with comparable accuracy

Required pitch uncertainty [deg]

0.02

Required roll uncertainty [deg]

0.02

Required heave uncertainty [m]

0.05

Motion stabilized

Y

Mounting and deployment: Retractable

Y

Mounting

Hull mounted & Portable

Used Sonar Methods: Type of system

Multibeam

Bottom Detection Method

Phase and Amplitude

Sonar type

Beam-forming

System Parameters: Min. frequency [kHz]

200

Max. frequency [kHz]

400

Min. depth [m]

0.5

Max. depth [m]

520

Depth resolution [mm]

10

Max. swath as a function of depth

10

Ping frequency [Hz]

50

Min. beam width across track [deg]

1

Min. beam width along track [deg]

1

Number of selectable frequencies

21

Simultaneous multiple frequencies

Yes

High resolution mode

Yes

Number of beams

2048

Available frequenties

200-700 kHz, 200-400 kHz in 10 kHz step

Max. pings / second

50

Transducer Type

Portable

Pulse length

Shortest pulse length 14 microseconds

Bottom Coverage: Footprint in nadir direction [m]

0.11

Footprint at max. horizontal range [m]

0.27

Smallest identifiable cube [m3]

1

Max. swath width [m]

700

Equal footprint spacing

Y

Max. number of points per ping for side scan operation

100000

Equi-angular/equi-distant mode

Equi-angular, Equi-distant

Backscatter

Y

Water column

Y