Piping - YOKOGAWA ZX8D User Manual

• 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.
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.
Piping configuration diagram
n
Following is a typical example of piping.
Sample gas
Permapure dryer
INLET
OUTLET
48
Bottom view
Check
Flowmeter
valve Filter
Oxygan
analyzer
Inlet
Exhaust
(open to
atmosphere)
Water
sealed
F0402.ai
Infrared gas
analyzer
Inlet
Outlet
NO SO Air
2
(Standard gas)
IM 11G00E01-01EN
6
Changeover
valve
O /N
2 2
F0403.ai
6th Edition : May. 21, 2018-00