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During a fit test, the respirator inlets are capped with test adapters, and the inhalation valves are removed from the mask. With the test subject holding his or her breath for no more than ten seconds, Fit Tester 3000 then establishes and maintains a slight vacuum, or controlled negative pressure, inside the mask. Since the respi-rator inlets are sealed, all sources of leakage into the mask are through the face-to-facepiece seal. The volume of air drawn out of the mask by FitTester 3000 during this short time period is equal to the leak rate into the mask through the face-to-facepiece seal. It's that simple...
Specifications |
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Dynamic Range |
Leak Test Measurement |
2 - 4500 cc/min |
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Fit Factor Computation |
10 - 53,000 |
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Pressure Sensors |
Pressure Range |
0 - 10 inches H20 |
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Accuracy |
+/- 0.5% full scale |
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Over-Pressure Limit |
+ /- 5% |
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Instrument Accuracy |
Challenge Pressure |
+/- 5% |
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Leak Rate Measurement |
+/- 3% or +/- 3 ml/min |
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General Specifications |
Size |
12.5" L x 5" H x 15" D |
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Weight |
15 Ibs / 6.88 kg. |
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Power |
110/220 VAC |
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Standard Accessories |
Soft Vinyl Accessory Pouch; |
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Copyright © 2005 Coll Health and Safety Inc.
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