Chapter 8 _____________________________________________________________ Technical Data 
 
VAISALA _______________________________________________________________________ 221 
Mechanical Specifications 
Table 48  FS11P Mechanical Specifications 
52 kg (incl. Frangible Mast FSFM250) 
On concrete foundation with three 16 mm 
diameter bolts 
Anodized aluminum, painted white 
Anodized aluminum, painted white,  
UV-protected ABS (radiation shield) 
Frangible and hinged glass fiber mast 
 
Environmental Specifications 
Table 49  FS11P Environmental Specifications 
-40 ... +65 °C, optional -55 ... +65 °C 
Direct and reflected sunlight into the light receiver 
must be avoided 
 
Electromagnetic Compatibility 
The FS11P sensor is CE-compliant. This compliance has been verified 
according to the following EMC directives. 
Table 50  FS11P CE-Compliance 
Harmonics to the AC 
(mains) grid