User manual SIMRAD ES120-7G DATASHEET REV C

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Manual abstract: user guide SIMRAD ES120-7GDATASHEET REV C

Detailed instructions for use are in the User's Guide.

 [. . . ] TRANSDUCER
Simrad ES 120-7G

120 kHz Split-beam transducer

Introduction

The ES 120-7G is a split-beam transducer incorporating 76 piezo-ceramic elements arranged in four quadrants.  [. . . ] 650 ±20% DI=10logD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 ±1 dB Equivalent two-way beam angle: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0. 009 ± 20% steradain 10 log. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -20. 5 ±1 dB Side lobes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . less than -15 dB Back radiation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . less than -30 dB Angle sensitivity: Phase angle/angle to target . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 Impedance: Nominal. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 ohms Max. variation in |Z| . . . . . . . . . . . . . . . . . . . . . . . . . 11 - 20 ohms Max variation in phase angle . . . . . . . . . . . . . . . . . . . . . . . . . ±30 deg Transmitting response . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 185. 0 dB ±2 re 1µPa per V

Technical specications

Receiving sensitivity,  open circuit . . . . . . . . -186. 5 dB ±2 re 1V per µPa Electroacoustic efciency . . . . . . . . . . . . . . . . . . . . . . . . . 0. 70 ±0. 20 Maximum pulse power input . . . . . . . . . . . . . . . . . . . . . . . . . 1000 W Maximum continous power input . . . . . . . . . . . . . . . . . . . . . . 10 W Maximum transducer depth . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150 m Cable length . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  [. . . ] 10. 6 ±0. 50 mm Weight without cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 kg Storage temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -20 to 70 °C

(855-164125 Rev. C)

Data

Installation

Manufacturer: Simrad AS Strandpromenaden 50 P. O. Box 111 N-3191 Horten Telephone: +47 33 03 40 00 [. . . ]

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