Measuring Oxygen Flows; Measuring Concentrator Outlet Pressure - Salter Labs PRO2 check Elite Operation Manual

Measuring Oxygen Flows

To measure oxygen flow rates from an oxygen concentrator follow the steps
below (Not recommended for flows below 0.5 LPM):
Connect the supply tube to the "% oxygen/flow" port and an operat-
1.
ing concentrator. Set the concentrator flow output at desired flow rate.
Turn on the PRO2 check Elite® device.
2.
Press the button on the upper right hand side of the PRO2
3.
check Elite® unit marked "flow."
The LCD will display "Flow LPM" (indicating that the device is in
4.
the mode to measure flow). A numeric read out indicating the oxygen
flow being delivered by the concentrator will display.
(Example: "Flow LPM 2.1")
Set the flow from the concentrator to maximum while the indicator is
5.
still connected to it and compare the readings. If desired, measure and
compare the readings at various flow rates.
To exit the Flow Mode, press the "flow" button again and the unit
6.
will return to the mode used to check oxygen concentrations.
NOTE: Your PRO2 check Elite® is factory calibrated to measure true mass flow. It is
far more accurate than the "ball" type volumetric flow-meter on oxygen concentrators.

Measuring Concentrator Outlet Pressure

To measure an oxygen concentrator's output pressure follow the steps below:
Connect the supply tube to the device's "pressure" inlet port and an
1.
operating concentrator. Set the concentrator flow output @ 2 LPM or
greater.
Turn on the PRO2 check Elite® device.
2.
Press the button on the upper left-hand side of the PRO2 check Elite®
3.
unit marked "pressure."
The LCD will flash "---" and then alternately display either "HPA"* or
4.
"PSI" and a numeric read out indicating the output pressure of the con-
centrator. (Example: alternately flashes "PSI" blank, "7.1 blank, "PSI"
blank, "7.1" blank, etc.)
Note and record the operating pressure indicated on the display. To exit
5.
the Pressure Mode, disconnect the supply tube. Press the "pressure"
button again and the unit will return to the mode used to check oxygen
concentration or press the "flow" button to go directly to that mode.
NOTE: When the supply tube is connected to the "pressure" inlet port of the PRO2
check Elite® unit and an operating concentrator, the oxygen flow from the concentra-
tor is occluded by the pressure measurement instrumentation.. This will generally cause
the concentration to drop and may trigger concentrator alarms and/or may cause the
supply tube to pop off the fittings. For this reason it is suggested that when operating the
PRO2 check Elite® device in the Pressure Mode, that the unit be set up quickly and the
readings be taken as rapidly as possible.
CAUTION: Do not check concentrator in any indicator mode
with a humidifier in place. Humidity can affect unit's readings.
*HPA on the display represents Kilopascals (kPa)
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