Testo 550-2 Dgital Manifold Set 0563 5506 Data Sheet

7 Maintaining the product 

16 

 

 

The measurement is performed on the low-pressure side. 

 

5. Press 

. 

-  Result is displayed on the low-pressure side. 
6. 

 Press 

. 

-  The measuring mode is displayed.

 

 

 

Cleaning the instrument 
>  

If the housing of the instrument is dirty, clean it with a damp 
cloth.  

Do not use any aggressive cleaning agents or solvents! Weak 
household cleaning agents or soap suds can be used. 

 

 

Keeping connections clean 
>  Keep screw connections clean and free of grease and other 

deposits, clean with a moist cloth as required. 

 

If the measuring instrument falls or another comparable 
mechanical load occurs, the pipe sections of the refrigerant hoses 
may break. The valve positioners may also be damaged, whereby 
further damage to the interior of the measuring instrument may 
occur that cannot be identified from the outside.  
>  Send the measuring instrument to Testo Customer Service for 

a technical check for your own safety. 

>  The refrigerant hoses must therefore be replaced with new, 

undamaged refrigerant hoses every time the measuring 
instrument falls or following any other comparable mechanical 
load. 

 

 

Removing oil residues 
>  Carefully blow out oil residues in valve block using compressed 

air.