Simrad ES120-2.5X10 DATASHEET

TRANSDUCER

Simrad ES 120-2.5x10

120 kHz Split-beam transducer

Introduction

The ES120-2.5x10 is a split-beam transducer incor­porating 172 piezo-ceramic elements distributed over
four quadrants. Its beam pattern has an elliptical cross­section and the side lobes in the vertical plane are very
low. This unit is well suited for horizontal ranging
in shallow waters using the narrow beam in the verti­cal plane. The following specications are valid when
all four quadrants are connected in parallel.

Order number

KSV-111154

Technical specications

Resonant frequency....................................... 120 kHz

Beamwidth:

Vertical .............................................2.5 deg ±0.5

Horizontal............................................9.5 deg ±1

Directivity:

D ......................................................... 1400 ±20%

DI=10logD ..........................................31.5 ±1 dB

Equivalent two-way beam angle:

Ψ.....................................0.0043 ± 20% steradain

10 logΨ................................................. -23 ±1 dB

Side lobes:

Vertical ........................................less than -20 dB

Horizontal....................................less than -15 dB

Back radiation ...................................less than -25 dB

(855-164280 Rev.C)

Angle sensitivity:

Vertical ..............................................................60

Horizontal..........................................................14

Impedance:

Nominal................................................... 60 ohms

Max. variation in |Z| .........................45 - 80 ohms

Max variation in phase angle .........................±30 deg

Transmitting response.............................185.0 dB ±2

re 1µPa per V

Receiving sensitivity, open circuit ........... -187 dB ±3

re 1V per µPa

Electroacoustic efciency ......................... 0.30 ±0.20

Maximum pulse power input .........................1000 W

Maximum continous power input ......................30 W

Maximum transducer depth ............................... 20 m

Cable length ....................................................... 20 m

Cable diameter ............................................. 10.6 mm

Weight without cable ..........................................7 kg

Storage temperature ................................-20 to 70 °C

Data

Admittance

Vertical

Horizontal

Installation

Manu fac t urer:

Simr ad AS

Strandpr omenade n 50

P.O.Box 111

N-3191 Hor ten

Telep hone: [phone]