The EM 2040 MKII is a true wide band high resolution shallow water multibeam echo sounder, an ideal tool for any high resolution mapping and inspection application. 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 our EM 2040 series.
The operating frequency range of the EM 2040 MKII is 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 large operating bandwidth, the system has an output sample rate up to 60 kHz. The system can effectively operate
with very short pulse lengths, the shortest pulse being 14 microseconds giving a raw range resolution (CT/2) of 10.5 mm. By utilising both CW and FM chirp pulses, the system can achieve long
range capability with a high resolution giving the system a maximum depth range in cold ocean water of 600 m at 200 kHz and a swath width up to 900m. The angular coverage for the 200 and 300
kHz is up to 170°, with coverage up to 7.5 times water depth on a flat bottom. For a dual transducer system, 200° angular coverage or 10 times the water depth is achieved on a flat bottom.
As an option the EM 2040 MKII can be delivered with dual swath capability, allowing a sufficient sounding density to meet survey coverage standards along track while maintaining a high vessel
The EM 2040 MKII is a modular system, fully prepared for upgrading to cater for more demanding applications. The basic system has four units: a transmit transducer, a receive transducer, a processing unit and a hydrographic workstation . The EM 2040 MKII receiver is 0.7° and is delivered with a 0.4° or 0.7° transmitter(s). The transmit fan is divided
into three sectors pinging simultaneously at separate frequencies ensuring a strong and beneficial dampening of multibounce interference. A single transmitter with dual receiver set-up fully
exploits the unique angular coverage of our three-sector transmitter for full 200° angular coverage per ping. The specialised dual transmitter and receiver set-up is ideal where mounting requires
a large separation of receivers, where mounting the transmitter at the keel is not an option or for ROV pipeline surveying and free span detection. This configuration transmits on a single sector
per transmitter with selectable frequency in steps of 10 kHz from 200 to 400 kHz. The standard depth rating of the EM 2040 MKII transducers is 6000 m, making it ideal for operation on subsea
vehicles such as ROVs or AUVs.