Lindab LT 600 Mode D'emploi page 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
200 Pa
2000 Pa
You can also download an Excel spreadsheet from www lindab ab containing a rough estimate of the anticipated leak-
age fl w 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
A
B
C
D
Example with 200 Pa and 75 m² duct surface area
20
290 m² 870 m²
65m² 195 m²
15 m²
Max. permitted leakage
flow rate
63 40 l/s
21 13 l/s
7 04 l/s
2 35 l/s
2600 m²
580 m²
44 m² 130 m²
Adapter
No adapter
No adapter
No adapter
Adapter 3 0
7800 m²
1750 m²
390 m²