Futura
● How the ABER biomass monitor works
▶ Real time means real savings
Cells with intact plasma membranes in a fermenter can be considered to act as tiny capacitors under the influence of an electric field. The non-conducting nature of the plasma membrane allows a build up of charge. The resulting capacitance can be measured: it is dependent upon the cell type and is directly proportional to the membrane bound volume of these viable cells.
▶ A unique range of probes
- Choose from a range of in situ steam sterilisable probes manufactured in robust materials that conform to FDA requirements & USP Class VI. The smooth, annular ring electrode arrangement provides a surface free of areas of entrapment and large EVEN electric field; ideal for many cell culture applications where cells will collect in any well or crevice. For production applications ABER offers a highly robust 25mm probe with flush electrodes- a design that is often used in cGMP bioreactors for cell culture. ABER can also provide probes that can be gamma irradiated for single use bioreactors. Option for a range of probes for single use bioreactors including single use, sterilisable and flow through cell.
▶ Specification
Frequency Range: | 50KHz to 20MHz |
Measuring Ranges: | Capacitance: 0.0 to 400pF/cm |
Cell Concentration Range: | Depends on cell sizes but typically: |
Resolution: | Resolution: 0.1 pF/cm. |
Accuracy: | Typically bett er than ± 3% or ± 2% of the reading |
Stability: | Better than ± 0.2 pF/cm at constant temperature with standard conductivity solution of ~12 mS/cm |
Linearity: | Better than ± 1% over 100 pF/cm |
Precision: | Typically <±0.5 pF/cm, no filter active. |
Power Supply: | Natively 24V DC. This is typically supplied by an Aber Hub running on 110V AC to |
Environmental: | IP65 rated |