Operation directions – C-Squared Dual Oxygen_Carbon Dioxide Analyzer User Manual
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Analyzer Instruction Manual
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C-Squared Inc. 1440 S State College Blvd, Unit 4L, Anaheim, CA 92806
Tel: (714) 999-2791, Fax: (714) 999-2928,
OPERATION DIRECTIONS
Controls
The C-Squared Oxygen Analyzer has a splash proof on/off switch that is simple to use. When
not in use, the switch should be in the off position to conserve battery life. When the switch is
in the up position it is on.
When switched on, the analyzer’s display will indicate an oxygen reading and a carbon dioxide
reading. Please note that the analyzer must be calibrated prior to use (see calibration section).
The low battery warning is a battery symbol in the left corner of the oxygen display. When
present charge the batteries prior to using the analyzer.
Air Calibration:
Calibration is essential prior to every use. For oxygen mixtures above 50% oxygen always
calibrate in 100% oxygen before use. This assures minimum deviation and greatest accuracy.
For regular use expose the analyzer to air at sea level and adjust the calibration air with the
calibration knob until the display reads 20.9%.
The analyzer is now ready for oxygen measurement.
The carbon dioxide does not need to be calibrated in that it is factory calibrated but you should
check the unit with a known gas mix periodically to assure that the calibration is valid. This
should be done at sea level. Any irregularities should be brought to the attention of the C-
Squared, Inc. for factory correction.
WARNING:
The analyzer is sensitive to oxygen partial pressure. Calibration and checks must
always be carried out at the same pressure as the oxygen measurement.
The Carbon Dioxide does not need to be calibrated. If the unit does not function properly it
should be returned for servicing.
Oxygen Calibration:
Obtain the 100% oxygen from a certified Distributor and measure the gas using a 100 to 300
ml per minute flow rate. Be sure to allow the reading to stabilize.