Measurement Modes in the Main Menu
41
NOTE!
The S-tube must be adjusted before the meas-
urement procedure starts, since it is required to
check and/or adjust the oppositely running orien-
tation of the measuring tubes after loosening the
knurled screws and adjusting the immersion
depth.
Fig. 46: Measuring the ventilation loss
The measurement will be done automatically.
21.
When the burner is turned off, press "Start" to
start the data recording.
After 30 seconds, the data recording will start
automatically. The captured values are shown
in the display.
22.
Press "OK" to accept the calculated ventilation
loss.
NOTE!
The wanted signal of the Wöhler S-tube probe is
better than that of a normal pitot tube, if the flow
speed is equal. In the setup-menu the pitot factor
0.93 must be set once.
