The Simrad 18-11 is a single beam transducer mainly designed for fish finding and bottom mapping applications.
The circular beamwidth of the ES-18 is 11 degrees at nominal operational frequency 18 kHz. The transducer uses 44 "tonpilz" elements.
Due to its low frequency, the Simrad 18-11 is ideal for use with deep water measurements. Maximum range is approximately 7000 meters.
The transducer is normally mounted flush with the hull plating or the bottom of a blister. The incorporated clamping ring is used to secure the transducer body to a mounting ring. The mounting ring is welded into the hull plating. The transducer can also be flush-mounted in the same manner at the bottom of a blister or a drop keel.
The transducer cable penetrates the hull using a cable gland. This cable gland consists of a bushing, washers, a rubber gasket and a packing nipple.
- Frequency: 18 kHz
- Circular beamwidth: 11 ±2 degrees
- Cable length: 20 metres
- Weight (in air, with cable): 85 kg
End-user documentation and installation drawings
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