Simrad ES333-7CD - DATASHEET REV A Datasheet

Simrad ES333-7CD
Split beam echo sounder transducer
Introduction
The Simrad ES333-7CD is a split-
beam composite transducer with a
large bandwidth. This provides a fine
range resolution, which is important
for single fish detection and target
strength measurement. The transducer
has four quadrants. The ES333-7CD
has been design to withstand a large
water pressure, it is therefore well
suited for towed bodies.
Order number
312902
Technical specifications
The following specifications are
valid for a 100 W pulse when all four
quadrants are wired in parallel. Note
that these specifications can be altered
without prior warning.
• Resonant frequency: 333 kHz
• Circular beamwidth: 7 deg
• Directivity: DI = 28 dB
• Equivalent two-way beam
angle: -21 dB re 1sr
• Side lobes: Less than -21 dB
• Back radiation: Less than -35 dB
• Impedance:
Total: 19 Ω
Each quadrant: 75 Ω
• Transmitting response:
182,5 dB re 1μPa per V
• Receiving sensitivity, open
circuit: -196,5 dB re 1V per μPa
• Electro-acoustic
efficiency: Better than 0.4
• Max. pulse power input: 200 W
• Max. continuous input: 2 W
• Max. transducer depth: 1500 m
• Cable length: 1.5 m
• Connector: Burton (5501-2008)
• Weight: Approximately 2 kg
• Storage temperature: -20° to 55°C
T E C H N O L O G Y
Beam pattern
F O R S U S T A I N A B L E
-30
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