Operating the Wöhler BC 600 via the app
57
Fig. 55. Prompt to cover the fan to meas-
ure the zero-flow pressure difference
•
You should now cover the fan opening with
the cover included in the scope of supply.
•
Tap “OK” to confirm.
The Wöhler BC 600 now determines the average
value of the zero-flow pressure difference for 30 s.
The fan does not operate during this measure-
ment. The elapsed measurement time is shown in
the display.
The zero-flow pressure difference is subsequently
displayed.
NOTE!
For a valid, standards-compliant measurement the
zero-flow pressure difference must not be greater
than 5 Pa.
The Start button is now active (available).
•
Tap START.
•
Remove the cover from the fan and tap OK to
confirm.