Simrad ES38B - REV E User manual

Simrad ES38B
38 kHz high power split-beam transducer
TECHNOLOGY FOR SUSTAINABLE FISHERIES
www.simrad.com
Introduction
The ES 38B is a split-beam
transducer incorporating 88 piezo-
ceramic elements distributed over four
quadrants.
Order numbers
Transducer: KSV-074531
Support beam: 099-206575(*)
Mounting ring: 499-074076(*)
(*) These items must be ordered separately.
Specications
The following specications are valid when all
four quadrants are wired in parallel. Note that
the specications may be altered without prior
notice.
• Resonantfrequency:38kHz
• Circularbeamwidth:7±1°
• Directivity:28.0±1dB
• Equivalenttwo-way
beamangle:-20.5±1dB
• Sidelobes:≤-15dB
• Backradiation:≤-35dB
• Nominalimpedance:19Ω
 (Eachquadrant:75Ω)
• Transmittingresponse:
183dBre1μPaperV
• Receivingsensitivity,opencircuit:
 -177dBre1VperμPa
• Electroacousticefciency:50%
• Max.inputpower:4000W
• Max.continuouspower:40W1
• Max.transducerdepth:50m
• Cablelength:20m
• Cablediameter:17,5mm
• Weightwithoutcable:40kg
• Storagetemperature:-40to+55°C
1 The ping rate (pings per second) multiplied
withthepulseduration(inseconds),andthen
multipliedwiththepoweroutput,mustbeless
than40W.
-10
-20
-30
-40
dB
(CD017022-002)
Beam patternAdmittance

164247 / Rev.E / December 2009
Kongsberg Maritime AS
Strandpromenaden 50
P. O.Box111
N-3191 Horten,Norway
Simrad
Telephone: [phone]
Telefax: [phone]
[e-mail]
www.simrad.com
SIMRAD ES38B
ø450
45°
SIMRAD FORWARD
(CD017022-004)
113
37
ø480
ø424
ø22
12
ø11
Standard cable length: 20 meters
(CD017022-005)
x8
(CD017022-008)
Installation
A) Air outlet
B) Steel blister
C)Steelplatewithmountingring(maybe
supplied by Simrad)
D)Transducer
E) Transducer cable
F) Partofcablegland
1. Aft starboard
2. Aft port
3. Fore port
4. Fore starboard
1
2
3
4
(CD017022-009)
Outline dimensions
All measurements in mm.
Cable termination