CM5017O Oceanographic CO2 Coulometer

Instrument for DIC measurements

Uses coulometric detection to measure Dissolved Inorganic Carbon (DIC) in sea water samples

  • Categories: Carbon and Sulfur Measurements
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  • For measurements of Dissolved Inorganic Carbon (DIC) in sea water, used along with CM5260 MODICA Unit.

    The CM5017O Coulometer uses coulometric detection to measure carbon as CO2. The gas stream resulting from the CM5260 MODICA unit is bubbled through the coulometer analytical cell. The carbon coulometer solution contains ethanolamine and a colorimetric pH indicator. The CO2 from the gas stream reacts with the ethanolamine forming a strong titratable acid, causing the color indicator to fade. The coulometer photometer recognizes this condition and initiates the electrochemical generation of electrons returning the solution to the original color. The current for this 100% efficient coulometric process is integrated and digitally displayed in user selected units. The Oceanographic unit is supplied with the CM5011 Emulation firmware necessary to allow direct connection to the CM5260 MODICA software. No other software is required. The CM5017O Coulometer sits on a conventional lab bench capable of supporting 40 lbs. The Coulometer stands 12” wide by 12” high by 19.2” deep. The instrument is constructed of aluminum and steel. The unit is designed with a cell compartment, power switch, cell current switch, and a touch screen monitor to act as the user interface to the instrument. The instrument is supplied with is an analytical cell assembly, power conditioner, power cord with a NEMA 5-15 plug and an RS232 serial cable. The unit is also supplied with a set of cell reagents and operation manual.

    Part Numbers:

    CM5017O-01 110V, 50/60Hz

    CM5017O-02 220V, 50/60Hz