Manual

14
IM 11M12A01-01E-A
6.2 Air Eductor, Exhaust Return (/ER Option).*
*This option cannot be used with the /HT option.
Note: The /ER option has pre-attached instrument air piped to the adapter to draw the sample up to
the probe. The eductor creates a vacuum, which draws the sample through the transport tube and
past the ZR22G Probe. The process gases are then piped back into the process through the adapter
ange. See Figure 6.2. The air supply to the eductor is fed through a 1/8” NPT internal connection.
Plumbing to the eductor is customer supplied. Clean, dry instrument air should be used for this
application at a pressure no greater than 20 psi.
The components that make the eductor return include the air eductor, regulator and gauge; however,
the regulator and gauge are remote from the unit.
Figure 6.2 Eductor Return (/ER Option)