COUPLING UNIT 



PRESSURE 

 TRANSDUCER" 

 SPRE-SCALER 



TEMPERATURE - 

 TRANSDUCER" 

 aPRE-SCALER 



ZENER REG- 

 ULATED SUPPLY 



LOW PASS 

 FILTER 



HIGH PASS 

 FILTER 



-6VDC AND 

 SWITCHING SIGNAL 



GATED 

 GENERATOR 



DC 

 FILTER 



.-£ 





m 

 otr 



Qlli 



°s 



OS 



oco 



w 



TO DECK UNIT 



Fig. Ik. Block diagram of bathythermograph underwater unit. 



HARNESS WITH 

 WATERTIGHT CONNECTOR 



j£ 



r 

 t 

 1- 

 I 

 _l 



TEMPERATURE- 

 TRANSDUCER 



COUPLING 

 UNIT 



PRESSURE 

 TRANSDUCER 



Fig. 15. Bathythermograph underwater unit. 



180 



