-4    - 
2.3  Measurement specifications ............................................................................................................. 17 
2.4  Optical specifications ........................................................................................................................ 19 
3  Mechanical Installation .......................................................................................................................... 26 
3.1  Dimensions ....................................................................................................................................... 26 
3.2  Accessories....................................................................................................................................... 31 
3.2.1  Air purge laminar ...................................................................................................................... 31 
3.2.2  Water cooling ............................................................................................................................ 35 
3.2.3  Shutter ...................................................................................................................................... 38 
3.2.4  Combination of air purge, water cooling and shutter ................................................................ 42 
3.2.5  Outdoor protective housing ....................................................................................................... 47 
4  Electrical Installation .............................................................................................................................. 48 
4.1  Process interface .............................................................................................................................. 49 
4.1.1  Process interface Xi 80/410 ...................................................................................................... 49