Designed Specifically for CO2 Applications

The Baseline BevAlert® Series 9100 Gas Chromatograph (GC) is a specialized instrument utilized by specialty gas manufacturers and the food and beverage industry to monitor trace volatile organic compounds (VOCs) or total sulfur (TS) in CO2 used for carbonated beverages (water, carbonated drinks, beer, etc.), as well as quick frozen foods. The BevAlert Series 9100 meets, exceeds, and complies with International Society of Beverage Technologists® (ISBT) criteria and methodologies for low-level analysis and continuous monitoring of the most critical CO2 impurities.

The GC is designed to continuously monitor single and multiple gas components in a wide range of applications for the beverage and food industries. Applications include acetaldehyde, benzene, toluene, ethyl benzene, xylenes, ethanol, methanol, vinyl chloride, ethylene oxide, and many others.

The analyzer is microprocessor-based and contains powerful embedded firmware. This makes it an on-line instrument with GC technology that is virtually transparent to the end user. The Series 9100’s automatic calibration is ideal for unattended operation. The instrument’s compact size and design make it transportable and allows for either 19" rack mount configuration or bench top use.

All of the beverage/food applications are factory pre-configured to enable easy start up and operation. The internal system software receives your instructions directly, using an LCD touch screen on the front panel. The GC's automatic calibration is ideal for unattended operation. A variety of industry standard outputs are available, such as network (LAN), RS-232, multiple 4–20 mA or 0–20 mA, and multiple relays for concentration alarms, diagnostics or user specified timed events. Data collection features include chromatograms and user-definable text formats for exporting data to reports. Data storage options are either continuous or based on events, such as alarms.
Unit of Measure



  • Direct ppb level measurement of Acetaldehyde, Benzene, Toluene, Ethylbenzene, Xylenes, and Vinyl Chloride in CO2
  • Direct ppm level measurement of Methanol in CO2
  • Total Sulfur measurement of organic sulfides, SO2, COS, and H2S at ppb levels

  • Features


  • No pre-concentration required
  • Continuous unattended operation
  • Total Sulfur: Detection limit of < 20 ppb as hydrogen sulfide
  • Integrated GC software - No need for external computer
  • 2 USB ports for mouse, keyboard or flash drive
  • Color LED graphical display with touch screen
  • Display options include: - Chromatogram- Concentrations - Historical Data- Diagnostics- Sequencing and Methods
  • Automatic and remote calibration
  • Multipoint sampling options
  • LAN connection
  • Multiple analog output options
  • User definable alarm relay options
  • Internal software stores multiple analytical methods and chromatograms
  • Specifications


    N/A Standard: Single point analyzer for pre-filtered (≤ 1 microns), non-condensing samples
    Optional: internal 4- or 8-point sampling
    External: 16 or more


    N/A Standard: 10-port valve sample injection/column switching. Contact MOCON - Baseline for additional valve options


    N/A Automatic or manual using a dedicated standard


    N/A Standard: Photoionization (PID); Optional: High-sensitivity (HS-PID)


    N/A ABTEX: < 50 ppb Acetaldehyde, < 2 ppb Benzene, < 5 ppb Toluene, < 5 ppb Ethylbenzene, < 5 ppb Xylenes VCAMB: < 2 ppb Vinyl Chloride, < 50 ppb Acetaldehyde, < 2 ppm Methanol, < 2 ppb Benzene
    Total Sulfur: < 20 ppb as Hydrogen Sulfide


    N/A Standard - Digital: RS-232, LAN; Optional: I/O Board: (5) programmable (latched/not, NE/NNE) relays as contact closure (3 A at 250 V DC); (1) analog output, (6) digital inputs


    N/A Optional: available in multiples of 8 up to 16; Analog: available in 4 or 8 analog outputs configurable as 4–20 mA or 0–20 mA


    N/A 7" Color LCD graphical display with touch screen


    N/A 100/230 V AC, 50/60 Hz, 2 Amp

    Operating Conditions

    N/A Temperature: 32-104 ºF (0-40 ºC)
    Humidity: 0-95%, non-condensing

    Gas Connections

    N/A 1/4” or 1/8” O.D. tube compression fittings, 1/8" Legris, or 6 mm O.D. tube compression

    Support Gas

    N/A ABTEX: Carrier: Nitrogen (Hydrogen optional) Total Sulfur: Carrier and reactor: Hydrogen VCAMB: Carrier: Nitrogen (Hydrogen optional)


    N/A Bench-top or rack-mount 19" (48.3 cm), 3U panel

    Physical Dimensions

    N/A 19" (48.26 cm) W x 16.25" (41.28 cm) D x 5.74" (14.58 cm) (w/feet)/5.12" (13.00 cm) (w/o feet)

    Nominal Weight

    N/A < 30 lb (13.64 kg)

    Options & Accessories


    N/A Optional: Built-in or external sample pump
    Injection port (on sample loop)


    N/A Optional: Digital input board for six contact closure inputs. Supports start sequence (8 each), start sequence loop (8 each), open method (8 each), and diagnostic functions.


    N/A Internal


    N/A General purpose, wallmount, X-purged or Z-purged

    Calibration Methods

    N/A Methods: Gas Cylinder, Model 8990 Permeation Calibrator, or response factors

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