ecom-JN
Page 10
3.2. Draft measurement
The draft present in the flue gas channel has already been indicated
by the trend display earlier. The chimney draft value is not stored by
pressing
<m>
as the differential pressure sensor is very sensitive and
drifts. For this reason it is recommended to re-calibrat the sensor
immediately before a measurement to ensure a good accuracy.
A differential pressure measurement is started by pressing
<DRAFT>
.
The current value is displayed as well as a reminder to reset zero
point. Remove the draft tubing and press the
<MODE>
key. The sen-
sor will now be re-calibrated.
Fix the tubing. The display now shows the exact value which can
saved value
:
-0.08 hPa
be stored by pressing
<m>
. This value will be added to those already
stored. The value saved is displayed. To leave the draft measurement
press
<ESC>
.
Draft measurement
Draft
- 0,05hPa
Reset zero point : release draft
hose, then press <MODE> !
