Simrad ES120-7CD - DATASHEET REV A Datasheet

Simrad ES120-7CD
Split beam echo sounder transducer
Introduction
The Simrad ES120-7CD is a 120
kHz split-beam composite transducer
with a large bandwidth. This provides
a fine range resolution, which is
important for single fish detection and
target strength measurements. The
transducer has four quadrants. The
ES120-7CD has been designed
to withstand a large water
pressure. It is therefore well
suited for towed bodies.
Order numbers
Transducer: 324410
Clamping ring: ES1-
203672
Mounting ring: ES1-204719
The clamping and mounting rings must be
ordered separately.
Technical specifications
The following specifications are valid when all
four quadrants are wired in parallel. Note that
the specifications may be altered without prior
notice.
• Resonant frequency: 120 kHz
• Circular beamwidth: 7 deg
• Directivity: 28 dB
• Equivalent two-way
beam angle: -20,7 dB
• Side lobes: Less than -23 dB
• Back radiation: Less than -35 dB
• Nominal impedance: 19 Ω
(Each quadrant: 75 Ω)
• Transmitting response:
183 dB re 1μPa per V
• Receiving sensitivity, open
circuit: -187 dB re 1V per μPa
• Electro-acoustic efficiency: 0.6
T E C H N O L O G Y
• Max. pulse power input: 500 W
• Max. continuous input: 5 W
• Max. transducer depth: 1500 m
• Cable length: 1,5 m
• Connector: Burton 5501-2008
• Weight with cable: 4,5 kg
• Storage
temperature: -20° to +55°C
F O R S U S T A I N A B L E
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www.simrad.com
F I S H E R I E S
(CD017028-003)
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Beam pattern