Apeks NS158000, Owner'S Manual, Page: 85 / 96

Doc. 12-7969 Doc. 12-7969 r09 (9/22/22)
85
© Apeks (2022)
OXYGEN ANALYZER
CALIBRATION ERRORS
Your O2 Analyzer may fail to calibrate. The DSX will indicate recommended corrective actions to take.
CALIBRATE
NO O2 CELL FOUND
PLEASE CONNECT
O2 CELL
CALIBRATE
O2 CELL DEPLETED
PLEASE CONNECT
A FRESH O2 CELL
ANALYZE
The DSX allows you to analyze the oxygen content of your cylinders and to then assign this oxygen reading to
a gas in the OC or CC gas lists. You need to calibrate the sensor before analyzing. Under certain conditions the
DSX may require you to calibrate again. If this is the case, the DSX will prompt you to do so.
1. Start with dry breathing grade gas from a reputable supplier.
2. Confirm Helium content separately with a helium analyzer if using a helium mix. The Apeks O2 Analyzer is not
capable of analyzing helium.
3. Calibrate the sensor if appropriate, see previous Calibration section.
4. Hold the O2 Analyzer dome cap firmly against the known (control) gas tank valve. Slowly open the tank valve
only part way. The flow rate should not be excessive (≤ 10 liters per minute).
4. Start the analysis following the prompt on your DSX screen.
5. Expose the sensor until the DSX produces an analysis report, and confirm the results. If you select NO, the
DSX will return you to the O2 Analyzer Menu where you may analyze again or calibrate as needed.
6. If you confirm the analysis results, you may choose to assign the FO
2
reading to a gas in the DSX gas lists. If
NO is chosen you will be returned to the menu, and you may stop here.
7. If you chose to assign the FO
2
value to a gas list, you will need to set the FHe (Fraction of Helium) first. Set 00 if
diving nitrox.
8. Choose the gas list that you want to add this gas mix to.
9. Chose the gas identity (number) to assign this gas mix to.
10. Confirm your choice.
!
DANGER: Moisture in the gas can create false readings.
NOTES: Analyze any helium content with a helium analyzer first if you want to use this menu to assign
the gas mix to a gas list in the DSX. Alternately, you may manually add the gas mix via the gas settings
menus.
NOTES: DO NOT analyze gas with excessive flow rates (greater than 10 liters per minute).
NOTES: Dropping or mishandling the O2 Analyzer can damage the O
2
Sensor or electronics. It is also
important to keep the O2 Analyzer dry.
/
ANALYZE
PLEASE CALIBRATE
O2 CELL
BEFORE ANALYZING
CALIBRATE FIRST
ANALYZE
/
SURFACE PRESSURE
1012 mBar
READY FOR
ANALYZING
START GAS FLOW & START
ANALYSIS
ANALYZE
ANALYZING
CONTINUE HOLDING DOME CAP
AGAINST TANK VALVE