Simrad ES70-18CD Depth rated wideband split beam transducer The Simrad ES70-18CD is a depth rated wideband split beam transducer designed for fishery research applications. Beamwidth is 18 degrees at nominal operational frequency 70 kHz. Applications Due to its depth rating and large beamwidth, the transducer is ideally suited for ecosystem monitoring from both mobile and stationary subsea platforms. The frequency range allows for broadband sweeps to optimize range, resolution and target identification. Order information To order the ES70-18CD, or any of the optional items provided with it, contact your local dealer. If you do not have a regular dealer, a list of all our distributors and dealers can be found on our website. Your dealer will also be able to help you with a detailed quotation including price and delivery information. Basic item Optional items Mounting- and clamping rings are required if you wish to install the transducer through a hull plating. You can manufacture these items yourself, or order them from Kongsberg Maritime. The items are not included with the ES70-18CD delivery, and must be ordered separately. • Mounting ring: 204675 • Clamping ring: 204677 • The transducer • Packing sleeve • Documents www.simrad.com TECHNOLOGY

Technical specifications Performance specifications • Nominal frequency: 70 kHz • Frequency range: 55 to 90 kHz The following specifications are valid for the nominal frequency: • Beamwidth: 18 degrees • Figure of merit: –12 dB • Max. source level: 216 dB • Transmit sensitivity (Su): 178 dB • Receive sensitivity (Mt): –190 dB • Sidelobe level: –18 dB • Back radiation level: –30 dB • Impedance (each sector): 60 Ω We are continuously working to improve the quality and performance of our products. Technical specifications may therefore be changed without prior notice. The technical specifications...

Rules for transducer handling To secure long life and accurate results, each transducer must be handled correctly. Any wrongful handling may damage the transducer beyond repair. Figure of Merit (Su+M) [dB] Observe these rules -18 Beam pattern at nominal frequency 0o -30o Painiting and cleaning the transducer face • Do not activate the transducer when it is out of the water. • Do not lift the transducer by the cable. • Do not step on the transducer cable. • Do not handle the transducer roughly, avoid impacts. • Do not expose the transducer to direct sunlight or excessive heat. • Do not use high...

Simrad ES70-18CD FORWARD Guide cam R5 R1 All measurements in mm. The drawing is not in scale. All measurements in mm. The drawing is not in scale. Pin configuration, sectors and cable colours The male connector in use on the transducer cable is manufactured by MacArtney. Its type identification is MCIL8M. Several female sockets are available to fit different purposes. The pin numbers, sectors and cable colours are: 1. Sector 1+: Black 2. Sector 1–: White 3. Sector 2+: Red 4. Sector 2–: Green 5. Sector 3+: Orange 6. Sector 3–: Blue 7. Sector 4+: White/Black 8. Sector 4–: Red/Black NOTE: The sectors...