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PRESENS

SFR vario v3 Shake Flask Reader for pH, DO, OUR and biomass

Reference: PRE-200002128

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The SFR vario V3 is an advanced, non-invasive shake flask reader designed for real-time monitoring of critical parameters such as oxygen (O₂), biomass, pH, and oxygen uptake rate (OUR) during microbial and cell culture processes. Utilizing optical sensor technology, it enables precise and continuous data acquisition without disturbing the culture environment.

SFR vario V3 Shake Flask Reader – Real-Time Monitoring of O₂, Biomass, pH, & OUR

Key Applications: Microbial fermentation, cell culture optimization, bioprocess development, media optimization, and metabolic studies.

Key Features

  • Simultaneous Monitoring: Real-time measurement of O₂, biomass, and either pH or CO₂

  • Non-Invasive Technology: Optical sensors integrated into the flask bottom allow measurements without sampling, reducing contamination risks.

  • Wireless Data Transfer: Bluetooth connectivity facilitates seamless data transmission to PCs or notebooks.

  • Multi-Unit Control: Manage up to four SFR vario units simultaneously using the dedicated software.

  • Versatile Flask Compatibility: Supports various flask sizes (125 mL to 5,000 mL) with or without baffles.

  • Battery-Powered Operation: Equipped with two long-lasting, rechargeable batteries for uninterrupted monitoring.

  • User-Friendly Software: Intuitive interface for data visualization, analysis, and export in multiple formats.


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    Technical information

    Parameter Specification
    Oxygen Measurement Range: 0–100% O₂; 
    Response time (t₉₀): <60 sec; 
    Resolution: ±0.01% at 0.21% O₂; 
    Accuracy: ±0.05% at 0.2% O₂ .
    pH Measurement Range: 5.5–8.0; 
    Response time (t₉₀): <60 sec; 
    Resolution: ±0.01 at pH 7; 
    Accuracy: ±0.1 at pH 7 .
    Biomass Measurement Based on optical density (OD₆₀₀) correlation; 
    Suitable for OD₆₀₀ range of 1–80; 
    Non-invasive scattered light detection .
    OUR Calculation Derived from the slope of online oxygen measurements; 
    Enables assessment of metabolic activity .
    Data Transfer Wireless via Bluetooth; 
    Compatible with standard PCs and notebooks .
    Software Compatibility Controls up to 4 units; 
    Provides real-time data visualization and export options .
    Flask Compatibility Supports flasks ranging from 125 mL to 5,000 mL; 
    Compatible with both glass and disposable flasks .
    Power Supply Two rechargeable batteries; 
    Ensures continuous operation during extended experiments .

    Download the full brochure for comprehensive technical details and configurations of the SFR vario V3 Shake Flask Reader.

    Contact our local experts for personalized advice, support, quotations, or to request a demonstration.

    Related documents

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    Presens Systems Brochure.pdf
    28 / 05 / 2025
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