MN220-‐1 A 71
Portable Oxygen Concentrator
MEASURING THE SYSTEM PRESSURE
1.
Remove the back cover.
2.
Locate the brass fitting with the orange plug on the left side of the feed/waste manifold.
3.
Remove the plug.
Figure 18: Pressure Test Port
4.
Using the pressure gauge with 1/8” OD tubing, push tube into the fitting.
5.
Turn the unit on by pressing the [2] setting.
6.
Make sure that the connections from the pressure gauge to the manifold are leak free.
i.
Part No. KI036-‐1 Pressure Test Kit (gauge and connector) and KI340-‐1
Adaptor
7.
Put the unit into test mode (Press the [1] and [3] settings simultaneously for ten seconds if the
unit is a FreeStyle. Press the [1] and [5] settings simultaneously for ten seconds if the unit is a
FreeStyle 5). Once the alarm sounds, the LED’s above each flow setting will illuminate. The unit
will then start to automatically pulse. Reference the PRESSURE PROFILES section of this manual
for the pressure swing process.
Orange Plug