Airflow Instruments ProHood PH731 - Page 54

46 ProHood Capture Hoods PH730/PH731
Figure 18: 2 ft  4 ft (610 mm  1220 mm) hood and frame. The support poles always cross as pairs at the
front and back of the fabric hood. For the 2 ft  4 ft (610 mm  1220 mm), the support poles are inserted into
the inside ferrule locations.
The number 1 and 5 channels also have a wing nut at the straight end which will mate with an angle and
studs on the ends of numbers 2, 5 and 6 to form the longer frame sides (see Figure 19).
2
1
4
1
2
4