YOKOGAWA IR800G, User Manual

Page: 33 / 127

IM 11G06A01-02EN
3-4
3. INSTALLATION
1st Edition : Oct. 27, 2023-00
Sampling gas inlet
Reference gas inlet
Reference gas inlet
Purge gas inlet
<IR800G>
<IR810G>
Sampling gas inlet
Purge gas inlet
Atmospheric pressure vent
Sampling (Reference) gas outlet
（ shared ）
Sampling (Reference) gas outlet
(shared)
Atmospheric pressure vent
Figure 3.2
Sampling gas inlet: Connect the pipe so that zero/span calibration standard gas or measured
gas pretreated with dehumidification is supplied properly.
Gas inlet pressure to be introduced (at the inlet of the analyzer);
4.9 to 9.8 kPa (both sample and reference). Note that the variations with
respect to the set pressure are ±2%.
Sampling gas (reference gas ) outlet: Measured gas is exhausted after measurement.
Connect the pipe so that the gas may escape through
the gas outlet into the atmosphere.
Purge gas inlet: It is used for purging the inside of the total gas analyzer. When the
analyzer must be purged, use dry gas N
2
or instrumentation air for purge
gas. (flow rate of approx. 1 L/min should be used and no dust or mist is
contained).
Reference gas inlet: For IR800G/IR810G-C, introduce air, dry air, dry N
2
or humidified N
2
that
has been pretreated with dehumidification, etc. as a reference gas for the
sample switching method.
Gas inlet pressure to be introduced (at the inlet of the analyzer);
4.9 to 9.8 kPa (both sample and reference)
Note that the variation with respect to the set pressure is ±2%.