YOKOGAWA IR400 series, User Manual

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<9. SPECIFICATIONS>
9-6
IM 11G02N01-01E
5. Standard Requirements for Sample Gas
Flow rate : 0.5 ± 0.2 L/min
Temperature : 0 to 50°C
Pressure : 10 kPa or less (Gas outlet side should be open to the atmospheric
air.)
Dust : 100 µ g/Nm
3
or less in particle size of 1
µ
m or less
Mist : Unallowable
Moisture : Below a level where saturation occurs at 2°C (condensation
unallowable).
Corrosive component: HCl, 1 ppm or less
Standard gas for calibration: Zero gas ; Dry N
2
Span gas ; Each sample gas having concentration 90 to 100%
of its measuring range (recommended).
Gas beyond concentration 100%FS is unusable.
In case a zirconia O
2
analyzer is installed externally and calibration
is carried out on the same calibration gas line:
Zero gas ; Dry air or atmospheric air (provided without CO
2
sensor)
Span gas ; For other than O
2
measurement, each sample gas
having concentration 90 to 100% of its measuring
range. For O
2
measurement, O
2
gas of 1 to 2 vol%.
6. Installation Requirements
• Indoor use. (Select a place where the equipment does not receive direct sunshine, draft/rain
or radiation from hot substances. If such a place cannot be found, a roof or cover should be
prepared for protection.)
• Avoid a place where receives heavy vibration.
• Select a place where atmospheric air is clean.