Labconco Type C1 Biosafety Cabinet Models 30468 User Manual
Page 86

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86
Figure 5-11
The Sensor Distance, as described in Table 5-5,
using the slots cut in the 6-foot Logic template.
4.00-inch mark
3.25-inch mark
Figure 5-12
The Sensor Distance, as described in Table 5-5,
using a scale.
Table 5-5
Secondary Inflow Test Specifications – 8 Inch Sash Opening
Cabinet Width (feet)
4
6
Sash Opening Template
4+
6+
Sensor distance (inches)
3.25
4
# of Test points
8
12
Test point location
*
*
Nominal Avg. Inflow Vel. (FPM)
283
231
Avg. Inflow Vel. Range (FPM)
249-274
221-222
Correction Factor (CF)
1.08
2
Average Inflow Volume Range (AIV) (Avg. velocity x CF)
269-296
403-443
Sash Open Area (Sq. Ft)
2.69
4.03
Inflow Velocity Range (AIV / Sash open area)
100-110
100-110
Secondary Inflow Test Specifications – 10 Inch Sash Opening
Cabinet Width (feet)
4
6
Sash Opening Template
4+
6+
Sensor distance (inches)
3.25
4
# of Test points
8
12
Test point location
*
*
Nominal Avg. Inflow Vel. (FPM)
354
289
Avg. Inflow Vel. Range (FPM)
312-344
251-276
Correction Factor (CF)
1.08
2
Average Inflow Volume Range (AIV) (Avg. velocity x CF)
337-371
503-553
Sash Open Area (Sq. Ft)
3.37
5.03
Inflow Velocity Range (AIV / Sash open area)
100-110
100-110