c 



r 



•Figure AI-17. Divers planting Geodyne current meter on trliwd. 



V 



with special equipment and data are decoded by 

 computer. 



To facilitate computer processing and anal- 

 ysis of the data, various data-identifier infor- 

 mation should be logged when making current 

 meter observations. A suggested format for a 

 Geodyne current meter log sheet is presented in 

 figure M-19. 



M-20 Maintenance of Current Meter.— The 



current meter requires relatively little main- 



M-16 



tenance. After the meter is retrieved and the 

 data-record film is removed, close the meter, 

 wash the exterior with fresh water and dry, 

 tape the rotor and vane to prevent turning, and 

 replace the meter in the shipping case. 



If flooding has occurred while the meter was 

 submerged, the data record will usually be 

 i-uined, depending on the extent of the flooding. 

 Nevertheless, to salvage the current meter com- 

 poneiits, remove components (camera, clock, 

 etc.) from the instrument assembly, rinse with 



Change 1—1970 



