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The CO2-Pro™ is a lightweight,
compact, and versatile sensor for measuring the partial pressure of
CO2 in water. It is designed for use
on shipboard in
underway-mode, in the laboratory and on moorings,
profilers and gliders (design tested to
depths of 1000 m).
The CO2-Pro™ is fitted with an IR
detector and the new patented PSI pump-driven fast interface
or optionally, the new PSI Advanced Matrix™ flat interface. These revolutionary new interfaces provides an equilibrated
gas sample to the detector. Note that a source of water flow is
required at 3 to 10 liters per minute (optional Sea-Bird 5-T pump
available from Pro-Oceanus Systems Inc. or from Sea-Bird
Electronics, Inc.).
The CO2-Pro™ is factory calibrated from
0-600 ppm CO2 with calibration burned
into EPROM (other calibration ranges are available by special
order). To maintain accuracy, the detector module is equipped to
perform an automatic zero point calibration (AZPC). When the AZPC is
initiated, the gas stream is routed through a CO2
absorbent to provide a zero ppm CO2
measurement. The CO2 zero measurement
compensates for changes in optical cell performance and is used in
determinations of ppm CO2 until a new
AZPC is performed.
PSI CO2-Pro™ Features:
High precision and accuracy
RS-232 data interface
Power saving options available
Low power requirements
Light weight and compact size
Unique antifouling protection
Raw absorbance, ppm CO2, gas pressure, and humidity data included in the data
stream
Low cost
Comes equipped with the PSI Patented tubular pumped fast interface
Download the CO2-Pro™ Product Brochure
HERE
Physical Specifications
Length: 33 cm (43 cm with connectors)
Diameter: 17.3 cm
Weight (air): 19.8 lbs. (9 kg)
Weight (water): 0.88 lbs. (0.4 kg)
Housing:
Hard anodized aluminum
Proof to 1000 meters (also available in other
materials including Delrin and titanium)
Electrical Characteristics
Input voltage:
12 ± 0.5 Volts DC through 4-pin impulse male connector
With power-saving option: 9.5-18 Volt DC
Power consumption (not including pump power):
During warm-up: 0.8 A at 12 volts
During operation: 0.4 A
Lower power consumption options available
Data storage: 2 gigabytes
with optional logger/controller
Data output:
RS-232 serial output
Sample Rate:
0.6 hertz with logger/controller user selectable
Equilibration time constant:
About 2
minutes (depending on pump flow rate)
Performance
Accuracy
CO2 concentration ±~ 1 ppm
Gas stream humidity ± 1 mb
Gas stream pressure ± 2 mb
Precision
CO2 concentration 0.01 ppm
Gas stream humidity 1 mb
Gas stream pressure 1 mb
Calibration range 0-600 ppm (other ranges available by special
order)
Temperature range 0-35°C