2940-2980 Multi-Channel Online Monitor

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4 and 8 Channel Online Monitoring Systems

  • Overview

    For multiple and parallel bioreactor systems, our 4-channel and 8-channel sampling systems provide many simple and reliable online monitoring and control solutions for your bioreactor processes. Closed-loop monitoring and control capabilities are easily achieved for any scale of operation or type of bioreactor, including single-use systems.


    Rapid, Accurate, and Interference Free  

    The key to generating analyte-specific results in 60 seconds or less is YSI’s innovative biosensor technology. Using the inherent specificity of enzymes for a single target analyte, YSI’s immobilized enzyme electrodes allow for a rapid, accurate measurement to be made quickly.

    Save Time and Money

    YSI’s proprietary immobilized enzyme electrodes allow for rapid, accurate, and largely interference-free measurement to be made in about a minute. Sample analysis requires little or no preparation due to the YSI Biochemistry Analyzers' unique sample chamber design and membrane characteristics, which makes the enzyme electrode impervious to sample color, pH, turbidity, and other low molecular weight interferences. 

    YSI 2940 and YSI 2980

    • Automated, aseptic sampling of up to 8 vessels
    • Monitor up to 6 chemistries
    • Analytical results in 60 seconds for each chemistry
    • Simultaneous online monitoring and 96-well plate sampling
    • Automated cleaning cycle
    • Autoclavable components
    • CIP and SIP compatible
    • Touchscreen, icon-driven HMI for easy viewing and menu navigation
    • Connectivity options for SCADA, DAS, LIMS, and feed-control systems
    • Remote access and control via web-based server
    • OPC server option
    • 21 CFR, Part 11 compliant


    • Fully modular and with a range of upgrades available, the YSI 2900 and 2950 Series feature an intuitive graphical user interface and a touch screen display, making 2900 series analyzers the easiest to use and most cost effective way to measure the following chemistries in a wide range of matrices:

      • Glucose
      • Lactate
      • Glutamine
      • Glutamate
      • Ammonium
      • Potassium
      • Ethanol
      • Methanol
      • Sucrose
      • Galactose
      • Lactose
      • Choline
      • Glycerol
      • Hydrogen peroxide

      If you're interested in online monitoring with 2 chemistries you may be interested in the YSI 2900M. We also offer the 2950D without online monitoring but it has the capability of offering up to 6 parameters!

      Be sure to check out our add-on module that provides OPC data management for off-line YSI 2900 Series Biochemistry Analyzers or YSI 2900M Online Monitoring & Control Systems, too! 

  • Specifications
    Analog Output

    2940: 4 ports (1 port per vessel)
    2980: 8 ports (1 port per vessel)
    Each port capable of communicating up to 2 chemistries

    Antiseptic Cycle User defined flow rate (mL/minute) and time (minutes)
    Benchtop Yes
    Certifications CE, ETL, UL, RoHS

    21 CFR. Part 11

    Equipment used with 2900D, 2950D
    Ethernet TCP/IP 2 ports (additional ports if Ethernet hub is used)
    Graphic Display Color
    Memory Yes
    Monitoring Yes
    OPC 2 ports (additional ports if Ethernet hub is used)
    Operating Temperature 18-28°C
    Power 100-120 VAC/220-240 VAC, 1.5 A, 50/60 Hz
    Sample Flow Rate 0.1 - 2.5 mL/minute (user defined)
    Sample Interval Time Unit: minutes (user defined)
    Sample Size 0.5 - 2.0mL (user defined)
    Security / Password Protection / UserID Yes

    6.0"w x 18.2" h x 11.0" l

    15.2cm w x 46.2cm h x 29.7cm l

    Tubing ID

    Sample inlet: 0.030"
    Peristaltic pump: 0.030"
    Waste: 0.0625"

    USB 3 ports
    Vessel Inputs

    2940: 4 vessel inputs
    2980: 8 vessel inputs

    Vessel Tubing Length

    1.5 meters (5 ft) (autoclavable and gamma irradiated options)
    3.0 meters (10 ft) (autoclavable and gamma irradiated options)

    Weight 16.0lbs (7.26kg)
    Wetted Materials

    Pharmed® tubing (peristaltic pump)
    C-Flex® and C-Flex Ultra® tubing (sample inlet and waste lines)
    PBT (Sample manifold)
    Nylon (connectors)

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