6
IM 11G00E01-01EN
6th Edition : May. 21, 2018-00
• This analyzer is of an indoor structure. When installing outdoors, select a place which is not
exposed to rain or water or use a protective cover.
• Select a clean place which is free from corrosive gas or combustible gas.
4.2 Piping
Connect pipes to the gas inlet and outlet at the bottom of the unit.
Use anticorrosive tubes such as Teflon, stainless steel or polyethylene for connecting this
instrument and the sampling system.
The inlet pipe should be kept as short as possible to allow a fast response. A suitable inner
diameter is around 4 mm. The pipes and joints should be clean, because dust entering the
instrument may cause faulty operation.
Since sulfuric acid mist or oxides may be discharged through the outlet pipe, this pipe should
have an inner diameter of about 8mm and be easily detachable for cleaning. A branch should
also be provided midway on this pipe for eliminating mist and the like. The outlet pipe should be
open to the atmosphere to avoid connecting it to another analyzer, sampling device, etc.
OUTLET
INLET
23
37
48
F0402.ai
Sample gas inlet
(Rc1/4 or 1/4NPT):
Connect pipe here for
introducing gas to be measured.
Sample gas outlet
(Rc1/4 or 1/4NPT):
Connect pipe here for discharging measured gas.
Bottom view
n
Piping configuration diagram
Following is a typical example of piping.
NO
SO
2
Air
O
2
/N
2
F0403.ai
Sample gas
Oxygan
analyzer
Check
valve
Filter
Flowmeter
Infrared gas
analyzer
Inlet
Outlet
Inlet
Water
sealed
Changeover
valve
(Standard gas)
Exhaust
(open to
atmosphere)
Permapure dryer
