testo Instruments Co. Ltd 05605522 User Manual

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3  Description of the instrument  
10 
Option 1 (recommended) 
 
The testo 552 is connected at the point that is furthest from the 
vacuum pump. This ensures that a sufficiently deep vacuum is 
generated throughout the system in order to remove any moisture or 
foreign gases that may be present. 
 
 
 
 
Option 2 
 
 
 
Option 3