20
17. Appendix
Theoretical measuring range limits at 230 V 50 Hz
Airtightness class A Airtightness class B Airtightness class C Airtightness class D
20 Pa 290 m² 870 m² 2600 m² 7800 m²
200 Pa 65m² 195 m² 580 m² 1750 m²
2000 Pa 15 m² 44 m² 130 m² 390 m²
You can also download an Excel spreadsheet from www.lindab.ab containing a rough estimate of the anticipated leak-
age flow rate:
DIN EN 12599 compliant leakage test using the Lindab LT 600 Leakage Tester
Test pressure Surface area
200 Pa 75.00 m²
Airtightness class Max. permitted leakage
flow rate
Adapter
A 63.40 l/s No adapter
B 21.13 l/s No adapter
C 7.0 4 l /s No adapter
D 2.35 l/s Adapter 3.0
Example with 200 Pa and 75 m² duct surface area.
manual-LTEST-1082_EN-DE-FR-SE.indd 20 2012-03-28 12:32:42
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