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ECOM-D
The CO sensor is protected against over-saturation thanks to an in-
ternal program. If the 4000 ppm limit is exceeded, a purging pump is
activated which provides the sensor with fresh air. After sufficient
purging time (X behinds CO disappears), the sensor can be reinte-
grated into the measurement system with
<F3>.
You can do this au-
tomatically by selecting
<Yes>
in
<Adjustments> / <Internal> / <CO-
Automatic>.
The sensor can also be manually excluded from the
measurement system by pressing
<F3>
.
8.2. Draft Measurement
A trend indication for the draft conditions in the exhaust channel can
be viewed during the gas analysis. However, the draft will not be
stored together with the gas values when pressing
<Record>
be-
cause the differential pressure sensor tends to drift.
For an exact measurement, auto-zero this sensor just before sampling
and document the value.
The display shows the current value as well as the
recommendation to reset the zero point of the sen-
sor. Disconnect the draft hose from the instrument
for a short period and press
<F4>
. The analyzer will
then reset the sensor’s zero point.
Pressure
Draught -0.12 hPa
Recorded value:
--.-- hPa
