Neptune Sonar Limited - Underwater Acoustic Transducer Manufacture and Calibration

ECHO SOUNDER TRANSDUCERS
Single Beam:
	Frequency	Model
	12 kHz	T 198
	24, 28, 30, 33, 38, 50 kHz	395 Series
	160, 200, 210, 300, 600 kHz	390 Series
	24, 28, 30, 33, 38, 50 kHz	147 Series
	24, 28, 30, 33, 38, 50 kHz	172 Series
	160, 200, 210, 300, 600 kHz	142 Series
	24, 28, 30, 33, 38, 50 kHz	320 Series
Dual Beam:
	Frequency	Model
	24, 28, 30, 33, 38 kHz	153 Series
	12 kHz	T 119
	120 kHz	T 38
	200 kHz	T 37
	210 kHz	T 28
Dual Frequency:
	Frequency	Model
	33 & 210 kHz	T 141
	24, 28, 30, 33, 38, 50 kHz 160, 200, 210, 300, 600 kHz	76 Series
	24, 28, 30, 33, 38 kHz 160, 200, 210, 300, 600 kHz	77 Series
	24, 28, 30, 33, 38 kHz 160, 200, 210, 300, 600 kHz	340 Series


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:: TRANSDUCER PRODUCTS / Dual Beam Transducers

MODEL T119

12 KHZ DUAL BEAM
LONG RANGE ECHO SOUNDER
NAVIGATION : SURVEYING
SILT PENETRATION
DEEP WATER CAPABILITY
NEPCAST® PU MOULDED HOUSING

The T119 transducer is a 12 kHz dual beam, ten element array designed for long range echo sounding.
The elements are nodal mounted pistons, selected by a four core cable as a 2 x 5 group for the narrow beam and a 2 x 3 group for the wide beam.

Nodal mounted elements are extremely robust, capable of withstanding high slamming forces, highly efficient and provide an excellent front to back ratio.

The transducer housing is based upon the NEPTCAST® system. Developed by Neptune’s engineers, NEPTCAST® is a single injection moulding process that produces a “one piece” all moulded, robust, lightweight and corrosion free transducer body.

Originally designed for mounting directly onto the hull the T119 is capable of withstanding a pressure of 85 bar and has been successfully used in towed bodies down to 750 metres.

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:: Beam Pattern 2

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Technical Specification
Resonant Frequency	12		kHz
Beam Width	Wide	Narrow	Selectable
Beam Angle @ -3dB	40 x 26	40 x 14	Degrees
Transmit Sensitivity	160	165	dB re uPa/V @ 1m
Receive Sensitivity	-168	-168	dB re V/uPa
Side Lobe Level	-13.5	-13.5	dB
Front /Back Ratio	-30	-30	dB
Max Input Power	1600	3000	Watts Pulsed
Bandwidth	2.0	2.0	kHz
Impedance	250	150	Ohms
Cable Length	10 metres standard (Additional lengths supplied to order)
Cable Type	Polyurethane Ø12mm 4 Core Screened
Storage Temperature	-40 to +80°C
Operating Temperature	-5 to +70°C
Ordering Information
T119, cable length


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