O Check - Ecom EN2 Operating Instructions Manual

8.3. O check
2
This measurement is performed by room-independant plants like gross
calorific value plants. It is determined if exhaust gas flows into the
combustion air (O
and herewith influence on the combustion quality.
For this analysis, a special multi-hole pro-
be (optional accessory) should be used.
If the value indicated is stable, press
<Record> to store the value in the
intermediate memory. If a printout of the
values should occur simultaneously to the
recording in the intermediate memory,
press <F2> (the complete content of the
intermediate memory will be printed out).
8.4. Draught Measurement
A trend indication for the draught conditions in the exhaust channel
can already be viewed during the gas analysis. Nevertheless the value
for the chimney draught will not be stored together with the gas values
while pressing <Record> because the differential pressure sensor tends
to drifts because of its sensibility.
For an exact measurement, it is consequently advised to re-calibrate
this sensor just before sampling and documenting the value.
The display shows the current value as
well as the recommendation to re-set the
zero point of the sensor. Disconnect the
draught hose from the instrument for a
short moment and press <F4>. The sensor
is herewith re-calibrated.
ecom-EN2
content drops down / CO content can be present)
2
Oxygen test
19.5
O2
CO
0.01
Draught
Oxygen test
Measurement stored
in intermediate
memory
Draught measurement
0.12
Recorded value:
--.-- hPa
%
3
ppm
hPa
hPa
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