38  Electronic Balancing Tool EBT720/EBT721 and ProHood PH720/PH721 
The direct inflow BSC hood includes (see Figure 22): 
❑  Fixed frame assembly with four removable flaps 
❑  Fabric hood 
❑  Hood support poles 
❑  Base mounting hardware (threaded insert, washer, and screw) 
❑  Telescopic pole stand with case to freely hold the capture hood in a vertical position when mounted to 
a biological safety cabinet or lab hood 
 
 
Figure 22:  Direct Inflow Measurement Hood Components 
 
To complete the assembly of the BSC hood, follow these seven steps: 
 
1.  Remove the plug located at the back of the base assembly and insert the Philips screw with washer 
into the hole from the inside of the base (see Figure 23). Place the threaded insert on the outside of 
the base opposite the screw and tighten with a Philips screwdriver.  
 
   
Figure 23:  Remove Plug Located at Back of Base Assembly