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EM 2040P MKII Multibeam echosounder, Max. 550 m

EM 2040 P MKII

The EM 2040P MKII is a shallow water multibeam echo sounder based on the EM 2040 technology, an ideal tool for any high resolution mapping and inspection application. With EM 2040 MKII series we upgrade the hardware and software to increase the swath and improve the data quality of our EM 2040 series.

Key facts

The system fulfils, and even surpasses, the IHO-S44 special order and the more stringent LINZ specification.

The operating frequency range is from 200 to 400 kHz. The operator can on the fly choose the best operating frequency for the application: 300 kHz for near bottom, 200 kHz for deeper waters and 400 kHz for very high resolution inspection. Due to the very large operating bandwidth available, the system will have an output sample rate up to 60 kHz. The system can effectively operate with very short pulse lengths. The shortest pulse is 14 microseconds, which gives a raw range resolution (cτ/2) of 10.5 mm.

By utilizing both CW and FM chirp pulses, the system can achieve a much longer range capability with a high resolution. The maximum depth range in cold ocean water is 600 m at 200 kHz with a swath with up to 830 m. The angular coverage for the 200 and 300 kHz is up to 170 degrees, with coverage up to 7.5 times water depth on a flat bottom. For the 400 kHz mode the angular coverage is 120 degrees. As an option the EM 2040P MKII can be delivered with the dual swath capability, allowing a sufficient sounding density along track at a high vessel speed.


The basic EM 2040P MKII has three units: A sonar head, a processing unit and a workstation. The sonar head has bumpers in the corners of the face of the transducer to protect it if it is placed on deck, and it has carrying handles on the sides. The EM 2040P MKII can be delivered with the standard processing unit or with a splash proof (24 VDC) portable processing unit. For completeness, data input from a motion sensor and a positioning system is required. As is the sound speed profile of the water column between the transducer and the bottom. Sound speed at the transducer depth is now available fully integrated in the sonar head with AML's latest generation SVT sensor, made of monolithic titanium, providing high accuracy and easy re-calibration in a rugged package.

Optionally, the sonar head can be delivered with mounts for motion sensor and sound speed sensor, factory aligned for ease of mounting. All electronics are contained in the sonar head which is interfaced to the processing unit via GBit Ethernet. The processing unit also supplies 48 V power via the same cable. Operator control, data quality inspection and data storage is handled by the hydrographic workstation running SIS software or by 3rd party software.

Features (standard)

EM 2040 P MKII Transducer
Transducer seen from the rear.
  • Very high resolution
  • Wide frequency range
  • Short pulse lengths and large bandwidth
  • FM chirp
  • Roll, pitch and yaw stabilisation
  • Nearfield focussing - both on transmit and receive
  • Water column data
  • Seabed image
  • Depth rated to 30m
  • Easy to install

Features (optional)

  • Water column logging
  • Extra detections
  • Dual Swath
  • AML's latest generation SVT sensor

Realtime software

Post processing software

Third party software

Note: KONGSBERG is not responsible for any system malfunction caused by 3rd party software.

Services & Aftermarket Support

24/7 Technical Support

Our 24/7 technical support team is there to help at any time, day or night, wherever your vessel is. We will manage your call from the time it is received to the time the issue is resolved.

The team has direct access to the experts in our product centres, should additional support be required, and for the more complex issues a product specialist will be assigned to you. Our priority is to get the right expertise quickly matched with the issue to provide the answers you need.

Support information this product

Key support information for this product is found here:

Contact us

The following contact information will put you through to our global support team:


We understand the importance of having the right parts, available in the right place, at the right time.

We have streamlined our operations to reduce lead-times and increase spares availability.

Contact us

Our 24/7 technical support team is there to help at any time of day or night wherever your vessel is located. They manage your call from the time it is received to the time the issue is resolved.

Contacting any of these numbers will put you through to our global support team:

Our local representatives will respond to your support requirements 24/7. If you want to know more about how our enhanced service delivery will benefit you, please contact our nearest Office.

Product Training

Ensure that your crew is properly and thoroughly trained. This will reduce operational risk, downtime and maximise return on asset investment.

It also enables you to meet regulatory standards, improve crew safety and retain key personnel. In our state of the art training centres qualified and experienced trainers are able to provide your crew with practical training tailored to suit your products, systems and operational requirements. Our instructors can also train your crew on-board your vessel.

From hands on experience on live products in our training centres, to experiencing real life scenarios in our world class simulators all our courses are designed to focus on efficient and safe operation and maintenance of your Kongsberg Maritime equipment.


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This type of solution is ideal for theoretical training, especially for larger groups. It goes through detailed systems overview including drawings and functionality.

This type of solution is ideal for practical training with focus on maintenance and troubleshooting on actual products. This type of training used together with classroom training can provide a holistic view of complete systems.