User manual SIMRAD ES38DD DATASHEET REV E

[. . . ] Simrad ES38DD Split-beam echo sounder transducer Introduction The Simrad ES38DD is a splitbeam echo sounder transducer incorporating 88 Tonpilz elements distributed over four quadrants. [. . . ] Order number KSV-113392 Specifications The specifications provided are valid when all four quadrants are connected in parallel. · Resonant frequency: 38 kHz · Circular beamwidth: 7 deg · Directivity D: 630 · DI = 10 log D: 28 dB · Equivalent two-way beam angle : 0. 009 · 10 log : -20. 5 dB · Side lobes: Less than -14 dB · Back radiation: Less than -14 dB · Angle sensitivity: 21. 9 · Nominal impedance: 15 ohm · Max. variation in phase angle: ± 30 deg · Transmitting response: 183 dB re 1Pa per V · Receiving sensitivity, open circuit: -179 dB re 1V per Pa · Electro-acoustic efficiency: 0. 40 · Max. pulse power input: 4000 W 10 8 6 4 2 (CD017014A) 0 -10 46 44 43 35 42 41 40 10 G (mS) B (mS) 0 36 37 38 -2 -4 -6 -8 -10 0 -20 39 15 20 -30 5 -40 Max. [. . . ] transducer depth: 1500 m Cable length, four pairs: 1 m Connector: 8-pin Burton female (5501-2008) · Cable diameter: 11 mm · Weight: 58 kg · Storage temperature: -20° to 70°C · · · · (CD017014B) www. simrad. com TECHNOLOGY FOR SUSTAINABLE FISHERIES Simrad ES38DD Transducer ES38DD Outline dimensions (Note that the drawing is not to scale. ) FORWARD 45 SIMRAD FORWARD o ø450 ø11 (CD017014C) 12 ø424 ø22 ø225 8 172 37 ø480 ES388DD Connections 855-160786 / Rev. E / May 2008 Simrad Kongsberg Maritime AS Strandpromenaden 50 P. O. Box 111 N-3191 Horten, Norway Telephone: +47 33 03 40 00 Telefax: +47 33 04 29 87 www. simrad. com simrad. sales@simrad. com [. . . ]