|
 |
|
ASD19-N Single Channel NIR Absorption Probe |
 |
The model ASD19-N is a high precision, single channel absorption probe. This stainless steel probe is specially engineered for use in laboratory or pilot-scale fermenters or bioreactors. It precisely measures the cell growth of microbial or cell cultures as a function of Near Infrared (NIR) absorption. The extremely durable and ultra-sanitary ASD19-N probe is designed for autoclaving. |
The ASD19-N probe uses the light in the near infrared range (NIR) from 840 to 910 nm. A precisely defined, constant LED light beam penetrates the process medium. The attenuation of the light intensity, caused by absorption and/or scattering by dissolved and undissolved substances, is detected by a hermetically-sealed photo diode. |
The ASD19-N probe is available with two different insertion depths and an optical path length (OPL) of 1 mm, 5 mm, 10 mm or 20 mm. Shorter optical path lengths are typically used for dense cell cultures such as bacterial and yeast cultures. Longer OPLs are used for lower-absorbing mammalian cell cultures. |
The seal-less, sapphire optical window design eliminates crevices and gaps to assure the highest level of sterility, cleanability and sensor integrity. The surface of the wetted parts is electro-polished and may be specified to comply with BN2.The probe mounts conveniently through an industry-standard, 19 mm port (M26x1) in the fermenter or bioreactor head plate. |
|
|
| Request a Quote |
Complete our brief application questionnaire and we will send you a quote quickly.
Request a Quote here. |
|
