11
IM 11M12A01-01E-A
5. Piping
5.1
Piping to the High Temperature Probe Adapter
The measured gas should be at a temperature below 700°C (1292°F) before reaching the
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detector sensor. If the gas is under negative pressure, it should be fed to the detector by suction.
If the measured gas is under negative pressure, connect the auxiliary eductor as illustrated in
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Figure 5.1. Mount the pressure gauge as close as possible to the auxiliary eductor. However, if
the ambient temperature is too high, mount the gauge in a location with an ambient temperature
below 40ºC (104 ºF).
Figure 5.1 Mounting the Auxiliary Eductor
5.2
Mounting the Auxiliary Eductor
If the temperature of the sample gas exceeds the specified value and its pressure exceeds 0.49
kPa, the sample gas temperature may not fall below 700°C (1292°F) at the detector. In such a case,
connect a needle valve through a nipple to the probe adapter sample gas exhaust, so that the
sample gas exhaust volume is restricted. For additional eductor options, refer to chapter 6 of this
manual.
Figure 5.2 Mounting the needle valve for restricting exhaust flow
Summary of Contents for ZR22P
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Page 18: ...18 IM 11M12A01 01E A Chart 7 1 Blowback Timing Sequence...
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Page 23: ...23 IM 11M12A01 01E A APPENDIX A Dimensional Drawings...
Page 27: ...27 IM 11M12A01 01E A APPENDIX B Wiring Diagrams...
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