Parts Required For Piping In System 1 - YOKOGAWA EXAxtZR Instruction Manual

4.1.1

Parts Required for Piping in System 1

Detector Piping location
General-use Calibration gas inlet
detector
Reference gas inlet
High-temperature Calibration gas inlet
detector
Reference gas inlet
Sample gas outlet
Note: Parts with marking * are used when required.
General parts can be found on the open market.
4-2
Therefore, the oxygen concentration required may not be obtained unless an exhaust
pipe is installed.
If a high-temperature detector is used and no piping can be installed for the reference
gas, place piping in the exhaust hole for the sample gas on the high-temperature probe
adapter so that the sample gas is carried away from the vicinity of the detector (see
Section 4.1.4, Figure 4.6).
If a high-temperature detector is used and the measured gas is under negative
pressure, connect an auxiliary ejector to the sample gas exhaust hole of the high-
temperature probe adapter (see Section 4.1.4, Figure 4.3).
If a high-temperature detector is used and the pressure of the measured gas is 0.49
kPa or higher, it is recommended that a needle valve (throttle) be used in the sample
gas exhaust of the high-temperature probe adapter (see Section 4.1.4, Figure 4.4).
CAUTION
• This is for lowering the sample gas temperature below 700 C. If the gas temperature is
high and the pressure is also significantly high, the sampled gas temperature may not
fall to below 700 C before it reaches the detector.
On the other hand, if the sample gas temperature is lowered too much, condensation
may be produced in the high-temperature probe adapter. During wintertime, it is
recommended that the probe adapter be protected with an insulating material to avoid
condensation forming (see Figure 4.5).
For the usage of the high-temperature probe adapter, refer to Section 3.2.2.
Check that the parts listed in Table 4.1 are ready.
Table 4.1
Parts
Stop valve
nipple *
joint for tube connection
(sealed up)
Stop valve
nipple *
joint for tube connection
(sealed up)
Auxiliary ejector *
T-shaped joint of the same R1/4 or 1/4 NPT
diameter *
Needle valve *
nipple of other diameter *
of a quality specified by YOKOGAWA
(L9852CB or G7016XH)
Rc1/4 or 1/4 NPT
Rc1/4 (1/4NPT) for a 6
soft tube
(when piping is required, refer to section 4.1.3)
of a quality specified by YOKOGAWA
(L9852CB or G7016XH)
Rc1/4 or 1/4 NPT
Rc1/4 (1/4 NPT) for a 6
(when piping is required, refer to section 4.1.3)
of a quality specified by YOKOGAWA
(E7046EC or E7046EN)
Rc1/4 or 1/4 NPT
R1/2 to R1/4 or R1/2 to 1/4
NPT
Note
general parts
4mm general parts
general parts
4mm soft tube
general parts
general parts
general parts
T4.1E.EP
IM 11M12A01-02E
S