Simrad 120-25 - REV B User manual

120 kHz single-beam
transducer
(855-164023 Rev.B
Introduction
The 120-25 is a single-beam transducer protected
by a robust housing. The solid interior enables it to
withstand the pressure at a depth of 1000 m.
Order number
KSV-062615
Technical specication
Resonant frequency.......................................120 kHz
Beamwidth, circular...........................10 deg. ±2 deg.
Directivity index ...............................................25 dB
Equivalent two-way beam angle (ψ) ............-17.5 dB
re 1 steradian
Nominal impedance ...................................... 60 ohm
Maximum variation in |Z| ..................... 45 to 80 ohm
Maximum variation in phase .........................±30 deg
Transmitting response .............................176.5 ±2 dB
re 1µPa per V
Receiving sensitivity (open circuit) ................ -183.0
±2 dB re 1V per µPa
Electroacoustic efciency ........................... 70 ±20 %
TRANSDUCER
Simrad 120-25
Maximum input power...................................1000 W
Maximum duty cycle (at maximum power) ........ 5%
Maximum installation depth .......................... 1000 m
Maximum storage temperature ............... -20 to 70º C
Cable length ....................................................... 25 m
Cable diameter ............................................. 10.9 mm
Weight without cable ...........................................4 kg

Data
Installation
Installation
Outline dimensions
Beam pattern Installation example
Manufacturer:
Simrad AS
Strandpromenaden 50
P.O.Box 111
N-3191 Horten
Telephone: [phone]
Telefax: [phone]
Internet: www.simrad.com