BioPAT® Fundalux Calibration Filter 1.8 AU for 12mm probe

Zero-point calibration is performed on the DCU controller prior to inoculation in the culture media when all physical parameters are stable and ready for growth. The functions for sensor calibration and monitoring the measured signal are implemented in the software. The sensors use light in the near infrared (NIR), ranging from 840 to 910 nm, which is optimal for measuring the absorption of biomass and is independent of color changes. A precisely focused, constant light beam penetrates the process medium. An encapsulated photoelectric silicon cell measures the drop of light due to absorption and scattering by ingredients in the culture medium and transmits the resulting photo-current to the amplifier.