Gas Chromatograph Analyzer0 pages

BASE BA-GCA
Gas Chromatograph Analyzer
The BA-GCA is part of the BAGGI BASE® Instruments Series. They are the
result of combining the latest state-of-the-art-technology with over 50 years of
industry experience.
The BA-GCA is a micro chip technology Gas Chromatograph Analyzer, for fast
and reliable gas analysis. It is designed for ease of use, reduced maintenance and
low gas consumption in on-line applications. It is specially built for installation in
areas with an explosive atmosphere.
The micro chip technology allows to create low cost Gas Chromatograph
components (valves, injector, detector, column, flow system, heating, flow
diagnostics) with low internal volume and low thermal mass. These micro chip
components are integrated in such a way that capillary connecting tubes are
avoided and virtual zero dead volume connections are created.
The following standard column types are available:
BA-PDMS (PolyDiMethylSiloxane WCOT column) for: Alcohols, aromatic hydrocarbons,
esters, flavors and aromas, free fatty acids, glycols, halogenated hydrocarbons,
hydrocarbons, ketones, oxygenates, solvents, sulfur compounds.
BA-PLTU/PLTQ (Divinylbenzene type U / type Q PLOT column) for: permanent gases,
CO2, halogenated compounds, hydrocarbons C1-C6, H2S, ketones, oxygenated
hydrocarbons and solvents.
BA-MS5A (Molecular Sieve 5A PLOT column) for: He, H2, O2, CO, Ne, N2, Ar, CH4,
Kr, Xe.
The enclosure houses up to four columns, that can be assembled as one integrated
instrument with common sample and carrier path, or deployed as individual stand alone
instruments.

There is a choice of the following detector types:
• TCD (Thermal Conductivity Detector) is the standard delivery
• PID (Photo Ionization Detector) is available upon request
• FID (Flame Ionization Detector) is available upon request
The BASE® Series embedded computer is the heart of the system.
The figure shows an ATEX certified version, contained within a Stainless Steel 316L enclosure provided with a
protective air purge system and a Vortex cooler (connected to the plant instrument air). Magnetic push buttons allow
controlling the system without opening the cabinet.
ATEX compliance:
- II 2 G Ex px II T6
- II 3 G Ex pz II T6
The computer, besides displaying the actual readings on its LCD screen, offers a GUI for configuring the system,
archiving the historical data in Excel compatible format, displaying the measurement in graphical format and
generating alarms. The main software function is to process the chromatograms data (peak heights and peak
areas) for obtaining the components concentration values.Finally, it can transmit remotely the measurements by
means of 4...20 mA analogue outputs and the alarms by means of digital (relay) outputs.
In short the embedded computer, together with its circuitry, acts as a PLC to operate the Gas Chromatograph
Analyzer during normal operation, start-up, shut-down.

TDSCS90702AR1_BAGCA

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B.A.G.G.I . SrL – V.le Campania,29 20133 Milano Italy – Tel. +39 02715547 – Fax +39 027490571 – baggi@baggi.com