8 • Back Panel
Back Panel
The back panel includes the power jack and sample fittings.
Power Jack
The power jack is located in the lower left corner of the back panel. The
plug on the end of the AC adapter cable mates to it.
Sample Fittings
Three sample fittings are located on the back of the SM-2009U. The AIR
fitting is in the upper left corner and draws air into the SM-2009U. The
CAL. GAS fitting is next to the AIR fitting and is used to connect the SM-
2009U to a calibration gas cylinder. Both the AIR and CAL. GAS fittings
accept 3/16” ID tubing.
An exhaust fitting is located in the upper right corner of the back panel. It
allows routing of the exhausted calibration gas to a convenient location.
This fitting accepts 5/16” ID tubing. Even though the exhaust gas can be
routed to an area to be safely dispersed, the docking station should still
be installed in a well ventilated area.
Exhaust
Fitting
CAL. GAS
Fitting
AIR Fitting
Power Jack
Figure 4: Back panel
