121
By setting sea-level elevation, the monitor is not automatically changed with air pressure
compensations. Correct sea-level elevation must be set before the first use of CO
2
Measurement Program. Improper setting of sea-level elevation will result in incorrect CO
2
readings. A 5% CO
2
deviation is generally generated corresponding to difference of each
1000m height.
(10) In the [CO
2
Settings] menu, select a correct [Atmospheric Pressure]: 405～760mmHg, the
instrument default is 760 mmHg; when CO
2
value is on the high side or on the low side,
select an appropriate atmospheric pressure based on the local condition by referring to the
table above (since the atmospheric pressure and the altitude are corresponding, the
atmospheric pressure can be adjusted only by setting the altitude. )
(11) In the [CO
2
Settings] menu, select [Zeroing]; after zeroing, the following prompt is displayed
at the lower right corner of the screen: Zeroing…Please Wait for 30s; you can start measuring
CO
2
only after the prompt disappears.
16.4.2 Measuring Procedure of PHASEIN Branded Sidestream and
Mainstream Analyzers
The PHASEIN branded sidestream analyzer operating procedure is roughly the same as the
mainstream analyzer operating procedure; please refer to the sidestream analyzer operating
procedure for the mainstream analyzer operating procedure.
16.4.2.1 Measurement Steps
If you want to set the host monitoring equipment in order to start gas analysis, please execute the
following procedure:
a) Start the host monitoring equipment (if a minihost is used, please start the minihost
monitoring equipment at the same time).
b) Or insert the CO
2
plug-in module into the host monitoring equipment; the indicator of the
CO
2
plug-in module will illuminate, which means that the module has been successfully
connected to the host monitoring equipment; otherwise, please reinsert the CO
2
plug-in
module.
c) Connect the Nomoline sampling tube to the input interface of the ISA analyzer (CO
2
module)
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