XS series operating manual 
 
XS user manual v0.55  - 143 - 
CLEANING  
 
Only clean the instrument with a mild rag or slightly soaked with water. 
 
 
CALIBRATION  
 
We recommend calibrating our units each year. The calibration must be performed by qualified 
people having the complete procedure as well as correctly checked standards. Our Maintenance 
department is at your service to perform the annual calibration.  
 
Nevertheless, if you wish to perform yourself the calibration, we can provide a calibration kit 
including a manual (XS90) and calibration boxes (XS-91-1, XS-91-2, XS-91-3, XS-91-4).  
 
Please get in contact with our Maintenance department in order to know the price and the 
delivery time