Sensor 



Temperature: Range: -2 to 35 C. 



Sea surface (See Accuracy: ^0.1° C. 



subparagraph 6 

 below. ) 



Vertical profile Range: -2 to 35° C. 



Accuracy: ±0. 1° C. 



Sound velocity Range: 4, 500 to 5, 500 feet per second 



Accuracy: ±1.0 foot per second abso- 

 lute at readout 



Conductivity (two Range: 10 to 40 millimhos per cm. 



interchangeable 30 to 60 millimhos 



modules) Accuracy: ± 0.01 millimho per cm. 



2 

 * 0.01 millimho per cm. 



Spare sensor outlet (See subparagraph 5 below. ) 



4. Data Storage and Transmission: 



a. It is required that the data output from all sensors be 

 recorded continuously and/or be sampled sequentially as sensors 

 are lowered and raised. 



b. The following modes of data recording and display must 

 be available: 



(1) Visual analog display on strip charts or X-Y 

 recorders. 



(2) Continuous analog tape recording for subsequent 

 reduction and analysis ashore. 



(3) Provision to permit the rapid radio transmission of 

 the data collected to other fleet units at sea and/or to shore control 

 centers. It is estimated that the reliable radio transmission range 

 must be 2, 000 to 2, 500 miles. 



5. Spare sensor outlet: 



A further requirement of this system is that provision must 

 be made for inclusion at a later date of at least one additional 



410 



