YOKOGAWA ZR22S, Руководство пользователя

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<4. Piping>
4-4
IM 11M13A01-02E
4.1.2 Piping for the Calibration Gas Inlet
This piping is to be installed between the zero gas cylinder and the ZA8F flow setting unit, and
between the ZA8F flow setting unit and the ZR22S detector.
The cylinder should be placed in a calibration gas unit case or the like to avoid any direct sunlight
or radiant heat so that the gas cylinder temperature does not exceed 40°C. Mount a pressure
reducing valve (specified by YOKOGAWA) on the cylinder.
Mount a check valve or stop valve (specified by YOKOGAWA) on the nipple (found on the local
market) at the calibration gas inlet of the detector as illustrated in Figure 4.2.
(The check valve or the stop valve may have been mounted on the detector when shipped.)
Connect the flow setting unit and the detector to a stainless steel pipe 6 mm (O.D.) × 4 mm (I.D.)
or larger (or nominal size 1/4 inch).
F04-2E.ai
Nipple
Stop valve
Tube
connection
joint
Check valve
Piping for the Calibration gas inlet,
6 mm (O.D.) by 4 mm (I.D.)
Stainless steel pipe
Piping for the Reference gas inlet,
6 mm (O.D.) by 4 mm (I.D.)
Stainless steel pipe
Piping for the Reference gas outlet,
6 mm (O.D.) by 4 mm (I.D.)
Stainless steel pipe
Figure 4.2 Piping for the Calibration Gas Inlet
4.1.3 Piping for the Reference Gas Inlet
Reference gas piping is required between the air source (instrument air) and the ZA8F flow
setting unit, and between the ZA8F flow setting unit and the ZR22S detector.
Insert the air set next to the flow setting unit in the piping between the air source and the flow
setting unit.
Use a 6 mm (O.D.) × 4 mm (I.D.) or larger (or nominal size 1/4 inch) stainless steel pipe between
the flow setting unit and the detector.
4.1.4 Piping for the Reference Gas Outlet
If the ZR22S is exposed to rain or water splash, connect the pipe outlet on downward.
4.1.5 Piping to the High Temperature Probe Adapter
• The sample gas should be at a temperature below 700 ° C before reaching the detector
sensor. If the gas is under negative pressure, it should be fed to the detector by suction.
• For usage of the high temperature probe adapter when using high temperature detector,
refer to Subsection 3.2.2.
• If the sample gas is under negative pressure, connect the ejector assembly (E7046EC/
E7046EN) as illustrated in Figure 4.3. Mount the pressure gauge as close as possible to the
ejector. However, if the ambient temperature is too high, mount the gauge in a location with
a temperature below 40 ° C.