(4) oxygen 0 to 10 milliliter/liter +0.1 milliliter/liter 
(5) depth (four inter- O to 600 feet +0.25% of full range 
changeable modules) O to 6,000 feet for each module 
0 to 15,000 feet 
O to 39,000 feet 
ge The sensor time responses desired arez 
(1) temperatures 95% response to a step function of 0.02°C in 1 second. 
(2) salinity: 95% response to a step function of 0.01°/oo in 1 second. 
(3) sound velocity: 95% response to a step function of 1.0 foot per second 
in 1 second. 
(4) oxygen: 95% response to a step function of 0.1 milliliter per liter in 
1 second. 
(5) depth: 95% response to a step function of 1 fathom (6 feet) in 1 second. 
h. Recordings 
(1) Within the instrument, there shall be continuous analog re- 
cording of all five variables simultaneously on magnetic tape. 
(2) On deck, after the instrument has been retrieved, this data 
must be capable of immediate, direct input into the Master Shipboard Data 
Logging and Processing System. 
Potential Users and Estimated Number of Units Which They May Require: 
ae U- S. Navy (basic research, applied research and oceanographic 
survey ships) - 20 to 40 
b. U- S- Coast and Geodetic Survey - 10 to 200 
ce Certain activities within the scientific community - 10 to 20 
d. Bureau of Commercial Fisheries - 30 to 100 
Totals 70 to 360 
Recommendation Where Instrument Should Be Researched and Developed: 
U. S. Industry. 
Relative Importance to U. S. National Oceanographic Programs 
Individual instrument priority 9. 
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