MODEL 204

A combination thru-hull and transom mount transducer.  Smaller than the Model 201.  Housing material is cast bronze.

Specification Data Sheet       

Installation Instructions

Engineering Drawing

Options:

bulletTemperature Sensor.
bulletDual frequency, single element, 50/200 kHz
bulletDual beam (degrees):
bullet14 & 38 @ 120 kHz
bullet9 & 19 @ 200 kHz

Weight:

bullet2.6 lbs.

Specifications:

FREQUENCY (kHz)

BEAM WIDTH (degrees @ -3db)

ELEMENT SIZE (inches)

ELEMENT SIZE (millimeters)

CAPACITANCE (pf)

NOTE (1)

IMPEDANCE (ohms)

NOTE (2)

TRANSMIT RESPONSE

(db)

NOTE (3)

RECEIVE RESPONSE

(-db)

NOTE (4)

POWER RATING, RMS (watts) 

REMARKS

200 18 1.1 28 965 550 157 -189 300  
200 12 1.45 37 1265 480 161 -182 300  
200 11 1.7 43 1900 300 163 -185 600 Dual frequency, 200 & 50 kHz
200 9 2.0 50 2185 385 165 -186 600  
160 20 1.1 28 885 750 158 -189 300  
160 11 2.0 50 1750 550 164 -183 600  
120 38 1.0 25 1050 500 167 -181 300  
120 14 2.0 50 1725 320 164 -171 600  
50 45

1.7

43 1600 440 156 -173 600 Dual frequency, 200 & 50 kHz

                                                            NOTES: (1)  with standard length cable.  (2)  equivalent series R in water.  (3)  the source level generated by one watt input.  (4)  the open circuit RMS voltage generated by a pressure of one microbar.

Back