C-Squared Dual OxygenCarbon Dioxide Analyzer User Manual

C-Squared Inc. 1440 S State College Blvd, Unit 4L, Anaheim, CA 92806

Tel: [phone], Fax: [phone], [e-mail], www.c-squaredinc.com

Introduction

The C-Squared Analyzer is designed to measure Oxygen levels in the .1% to 100% range and
carbon dioxide in the range from 0ppm to 2000 ppm. (The range of the carbon dioxide can be
acquired from 1 to 2000ppm range to 100% level on request). It can be used to measure the
oxygen and carbon dioxide content for mixes used in Diving, Medical Instrumentation and
Industrial applications. The Analyzer is designed to be able to verify oxygen concentration in
cylinders as well as Analyzer delivery systems. A major advantage is being able to verify
contamination from carbon dioxide in breathing system gases.

The C-Squared Analyzer has digital displays, an internally mounted temperature compensated
oxygen sensor with a 2 year life expectancy and an Infrared carbon dioxide Analyzer that is
factory calibrated for accuracy and only requires occasional verification to assure proper
operation. The power is supplied by rechargeable (NiMH) 12 volt batteries providing an
expected operation life 10 hours of continuous operation and a life of two years before
replacement is required. The charger is also supplied and works off of 110V/60Hz or
240V/50Hz.

The case is environmentally sealed, with the on/off switch inside the case. The Analyzer is
water resistant and sealed to prevent moisture from affecting the internal components. We
use a special water collection device that removes water from gaseous streams in a vapor
state so samples are not exposed to liquid water. Since only water is removed, sample
integrity is assured. The process is continuous, self-regenerating and accomplished with no
moving parts thus providing an intact dry sample for gas analysis. The power switch is a
single purpose switch to either turn the analyzer on or off. The displays are illuminated to
make for easy reading either during the day or night regardless of other light conditions.

The Analyzer is shipped in a high impact case that can be used in a mobile state or attached to
a fixed position.

Incorporated

O2 - CO2 Analyzer

Instruction Manual

O2 - CO2 Analyzer Instruction Manual Page 2

C-Squared Inc. 1440 S State College Blvd, Unit 4L, Anaheim, CA 92806

Tel: [phone], Fax: [phone], [e-mail], www.c-squaredinc.com

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 C­Squared, 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.

O2 - CO2 Analyzer Instruction Manual Page 3

C-Squared Inc. 1440 S State College Blvd, Unit 4L, Anaheim, CA 92806

Tel: [phone], Fax: [phone], [e-mail], www.c-squaredinc.com

Operation:

You should check the calibration with a known calibration gas and adjust as necessary. If for
any reason the Analyzer does not calibrate within specifications the supplier should be notified.
If the batteries are low an icon will appear on the face of the display and the batteries should
be recharged for best performance.

Troubleshooting:

PROBLEM

POSSIBLE SOLUTIONS

Cannot calibrate oxygen.
Cannot verify CO_ reading

Replace Oxygen Sensor
Notify supplier.
No display once analyzer is turned
on.

Recharge Batteries

Low battery indicator is displayed

Recharge batteries

Maintenance:

Battery Replacement:

Should be done by a C-Squared Representative.

Sensor Replacement:

a) Remove the sensor from the cable. Unscrew the nozzle and save for use in step d).

b) Dispose of the used sensor in accordance with local regulations.

c) Remove the new sensor from its package; check it for leaks or any damage.

d) Attach the nozzle and install with the enclosed tie downs.

e) Attach the sensor cable to the sensor.

O2 - CO2 Analyzer Instruction Manual Page 4

C-Squared Inc. 1440 S State College Blvd, Unit 4L, Anaheim, CA 92806

Tel: [phone], Fax: [phone], [e-mail], www.c-squaredinc.com

Care of the Analyzer:

The Analyzer is an electronic instrument and should be treated as such. It is a completely
sealed unit and the enclosure was designed to withstand use in harsh environments. However
it should not be intentionally dropped in water or physically abused. With proper care it will
provide you with a long life. The Analyzer may be wiped clean with disinfectants or water. The
Analyzer is designed to be splash proof so there is little chance of liquids coming in contact
with delicate electronics.

Safety:

When the batteries or sensor require replacement, dispose of them in accordance with local
regulations.

The sensor contains a KOH (Potassium Hydroxide) solution that is hazardous and can result in
the following:

Eye Can cause eye damage. Flush the eye with water for 15 minutes.

Ingestion Can be fatal if swallowed. Drink a lot of fresh water and seek aid.

Skin Chemical burn is possible. Wash the area of skin exposed and remove any

clothing that was in contact with the KOH. Seek aid if necessary.

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