<3. INSTALLATION>
3-8
IM 11G02N01-01E
3.4.5 Purging of instrument inside
The inside of instrument need not be purged generally except for the following cases.
1. A combustible gas component is contained in sample gas.
2. Corrosive gas is contained in the atmospheric air at the installation site.
3. The same gas as the sample gas component is contained in the atmospheric air at the
installation site.
In such cases as above, the inside of analyzer should be purged with the air for instrumentation or N
2
.
Purging flow rate should be about 1 L/min.
If dust or mist is contained in purging gas, it should be eliminated completely in advance.
3.4.6 Pressure at sampling gas outlet
Pressure at the sampling gas outlet should be adjusted to atmospheric pressure.
Summary of Contents for IR400 series
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