ROTATING COWL AND IMPACTOR
HIGH VOLUME SAMPLER
SYSTEM
SUPPORT
ARM
CASCADE IMPACTOR
__——._ SPINDLE EXTENSION
WIND ORIENTATION
| TAIL FIN
WIND
CYLINDRICAL
SAMPLE INLET
CYLINDRICAL
COWL BODY
{|
SPINDLE BEARING
‘ASSEMBLY BOLT
Figure 1
709
WIND
DIRECTION
SENSITIVE
ROTATING
COWL