Electrical fields

• Frequencies: 1 kHz–39.96 MHz
• Field strength: 0.5–100 V/cm
• Application time: 1–32 s
• Measurement chamber: approx. 0.6 ml
• Minimal cell concentration: 0.2–2x10⁸ cells/ml

Probe preparation

• Typical volume of suspension: 2–5 ml of culture*
• Time for automatic probe preparation: 3–6 min*

*dependent on concentration of cells and remaining ions

Software

• Real-time data monitor
• Direct comparison between actual and archived data
• Report function
• Data Export to ASCII (MS Excel, Origin, PlotIT, StarOffice, OpenOffice etc.)

Electrical characteristics

• External AC/DC adapter:
• Input: 230 V (other Voltages available) 50 Hz, max. 1.5 A
• Output: 12 V, max. 300 mA
• EloTrace power usage: 12 V, max. 200 mA
• PC Interface: RS232 (optional USB)

Mechanical Parameters

• Dimensions (W×D×H): 452×385x355 mm
• Weight: 5.2 kg

Included in Delivery

• Electrooptical measurement unit
• Bypass-tubes (2x2 m)
• Controller software installation CD
• Interface cable (RS232)
• Instruction manual

Environment

• Operating temperature: 10...40°C (50...104°F)
• Storage temperature: 10...50°C (50...122°F)
• Humidity: max. 85%, not condensing

Optional Parts

• Vacuum pump
• Additional water vessel
• Additional waste vessel
• Vials for turret
• Vials for fluidic block

• Automatic determination of
  • Cell activity
  • Stress levels
  • Cell size
  • Morphological changes
• Using high number of cell for statistically firm information
• Observation of division frequency and prediction of culture development
• Prediction of time points with higher cell vitality
• Determination of optimal time points for
  • Inocculation
  • Induction
  • Harvest
• High precision data recording
• Automatic report generator

Areas of use:

• Cultivation of bacterial cells in the production of starter cultures, vaccines and recombinant products
• Direct evaluation of cell response to external influences
• New monitoring, management and preparation strategies

Measured parameters (ion concentration in the cytoplasm, average size and absolute concentration) are universal for all types of microorganisms. Determining optimal profiles of these processes allows you to certify processes and reproduce them with guaranteed accuracy.

The advantages of this method in comparison with various marker methods for studying bacteria:

• No artifacts
• No label-making
• No long time between sampling and measurement