SA9: In-situ UV-Vis Spectra Analyzing Sensor

SA9 is the new generation of immersion spectra analyzing sensor.
It uses standardized spectra algorithms by taking the complete 200 to 710 nm absorp- tion spectrum of water into account to determine the nitrogen and carbon compounds.
SA9's spectrum compensation for light absorbing particles and turbidity provides a unique and high sensitivity approach that allows the monitoring of dissolved organic substances without sample pre-treatment.
SA9 gives reliable readings for NO3-N, NO2-N, organic ingredients (CODeq, BODeq, DOCeq, TOCeq), and a number of other parameters.
The sensor can be submerged into water by mounting hardware or using flow cell for bypass installation.
Measurement path length is from 1 to 100 mm.
There is a built-in purging nozzle for cleaning the test window by compressed air or pressurized water stream.
There is also an optional clamp-on wiper for automatic test window cleaning.

The validated spectral calibration by SA9 uses multiple wavelengths to monitor and compensate each sum parameter, which enables much more accurate and robust measurement than the single wavelength method.
Using field special calibration that employs specific features of the absorption spectrum, it is even possible to distin- guish various fractions of organic carbon groups.
For a specific application, the rele- vant calculation and calibration of desired parameters require their corresponding spectra and reference values obtained from the analytical chemistry lab.
The spectral data plus one or more corresponding measured values are called reference value pair.
The sensor uses the reference value pair and the proprietary spectral algorithm to perform calibration.
The more reference value pairs are provided; the more accu- rate calibration is given.

SA9 Sensor also enables applications in aggressive media (e.g. high chloride concentrations) thanks to the optional titanium housing.

Equipped with the Delta-Phase View configuration, internal data logger, flexible protocols and data outputs, SA9 Sensor includes features that are much more advanced than those of comparable devices currently available on the market.

The unified platform of all Delta-Phase photometers also facilitates a standardized spare parts and consumables system, which allows the use of a wide range of accessories for our devices.
Furthermore the cutting-edge Delta-Phase View enables quick integration into third- party systems.

Measurement of Color

SA9 enables reliable low-cost color measurements.
SA9 uses Xenon Flash Light for long-term stable measurements of SAC or colors on UV to Vis Spectrum, SA9 Choose the different wavelengths for Color measurements, and the absorption at 550nm is used for turbidity/ background correction.
The cutting-edge device platform, used in all other Delta-Phase photometers, enables optical path lengths of 35, and 100 mm, so that almost any application can be easily implemented.