Simrad 38-200 COMBI C - REV D User manual

Simrad 38/200 Combi W
Dual frequency echo sounder transducer
Beam pattern, 200 kHz
TECHNOLOGY FOR SUSTAINABLE FISHERIES
www.simrad.com
Introduction
The Simrad 38/200 Combi W is a
dual frequency transducer (38 and 200
kHz), and both frequencies operate
with wide beams (31°). This makes
the transducer perfect for shallow
water sh detection using the 200 kHz
frequency, and excellent for bottom
discrimination from shallow depths
and down to several hundred meters
using both frequencies.
The transducer is not suited for
scientic use.
Order numbers
Transducer: KSV-208845
Mounting ring: ES1-208846 (*)
Clamping ring: ES1-203672 (*)
(*) These items must be ordered separately.
Technical specications
Please note that the specications can be
altered without prior warning.
38 kHz
• Resonant frequency: 38 kHz
• Directivity: 15.5 dB
• Side lobes: Less than -15 dB
• Back radiation: Less than -20 dB
• Max. pulse input: 400 W
• Max. continuous input: 4 W
• Source level: 208 dB re 1µPa
• Transmitting response:
164 dB re 1µPa per V
• Receive sensitivity, open circuit:
-184 dB re 1V per μPa
200 kHz
• Resonant frequency: 200 kHz
• Directivity: 16 dB
• Side lobes: Less than -20 dB
• Back radiation: Less than -30 dB
• Max. pulse input: 250 W
• Max. continuous input: 2,5 W
• Source level: 197 dB re 1µPa
• Transmitting response:
155 dB re 1µPa per V
• Receive sensitivity, open circuit:
-197 dB re 1V per µPa
Common
• Circular beamwidth: 31°
• Nominal impedance: 75 ohms
• Maximum transducer depth: 20 m
• Cable length: 15 m
• Cable diameter: 10.6 ±0.5 mm
• Weight with cable: 5 kg
• Storage temperature: -20 to 70°C
0
-10
-20
-30
-40
-30 30
(CD017000-001)
0
-10
-20
-30
-40
-30 30
(CD017000-002)
Beam pattern, 38 kHz
Note: The transducer must be
submerged in water when transmitter
power is applied. Transmitting in
air will damage the transducer
permanently.

165019 / Rev.B / October 2009
Simrad 38/200 Combi W
Installation principle
Kongsberg Maritime AS
Strandpromenaden 50
P. O.Box111
N-3191 Horten,Norway
Simrad
Telephone: [phone]
Telefax: [phone]
[e-mail]
www.simrad.com
Outline dimensions
All dimensions in mm
Cable termination
ø130
ø180
ø152
80
100.2
85.2
Use 12 mm
M8 bolts
Maximum
torque
17 nm
Threaded inserts
for portable use
(CD17000-003)
EE
A
C
G
D
F
B
(CD017010B)
A) Streamlined blister
B) Mounting ring
C) Clamping ring
D) Guide
E) Air outlet
F) Forward
G) Transducer cable
Black
Black
Black
Black
White
White
White
White
P1air :38 kHz
P2air : 200 kHz
P3air : Thermistor
P4air : Spare (not used)
The pair number is printed on the black conductor.
Transducer
cable
(CD017000-008)
For more information regarding
the installation, refer to the Simrad
38/200 Combi C Installation manual.