2.3 Symbol Guide
The following symbols and safety labels are found on the Check O2 Plus:
2.4 Component Description
3 1/2 Digit Display — The LCD provides direct readout of oxygen concentration, gas flow and gas pressure. The LCD also displays error codes as necessary.
Authorized representative in the European Community
Do not throw away. Follow local guidelines for disposal.
Evaluated by ETL (Intertek Testing Laboratories)
Manufacturer
Ingress protection
Latex free
Serial number
Catalog number
Consult accompanying documents
On/off button
Mode button
Low battery
Liter per minute flow
Pounds per square inch
Kilopascals
Percent
Gas Sample Inlet
Gas Sample Outlet
Direct current
ON/OFF Button — Turns the device on or off.
Mode Button — Switches between measuring the concentration of gas produced by an oxygen concentrator and pure oxygen (for calibration verification).
Low Battery Indicator — Indicates the voltage of the batteries is below normal operating levels.
LPM — Illuminated next to the flow measurement. (not shown when in calibration verification
kPA — Indicates the pressure measurement is in units of kilopascals.
PSI — Indicates the pressure measurement is in units of pounds per square inch.
“%” symbol — Illuminated next to the concentration measurements.
Gas Sample Inlet — Used to receive the gas sample.
Gas Sample Outlet — Used as an outlet for the gas sample and as a trigger for pressure measurement when occluded.
Gas Sample Tubing — Used to connect to gas sample sources.
2.5 Included with Your Unit
•User Manual
•Gas Sample Tubing
•Soft Cover
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