The Biotector 970 is a single enclosure unit with built in microcontroller and membrane keypad. As an additional feature, the Biotector 970 can sequentially analyse samples from up to 6 different streams.

Sampling:
A representative unfiltered sample from the stream to be analysed is pumped into the analyser. The sample injection valve automtically selects the appropriate sample volume for the optimum measuring range.
TIC Detection:
Acid is added to lower the pH so that inorganic carbon may be sparged off as carbon dioxide. As the Biotector 970 actually measures the level of TIC in the sample, it will not allow TIC to carry over into the TOC measurements.
Oxidation:
The ozone genrator is switched on to generate ozone used in the reaction. Sodium hydroxide is added ot raise the pH of the sampel to the point where the production of hydroxil radicals is optimised. In these conditions, total and effective oxidation takes place.
TOC Calulation:
To remove the carbon dioxide from the oxidised sample, the pH of the sample is lowered again. The carbon dioxide is sparged and measured by the IR-detector. The result is calculated and presented on screen and as a 4-20mA output. All data is stored in the system's archive

Biotector 970 Data Sheet...Click Here

Designed to withstand corrosive environments, the Biotector 990 is housed in a FRP enclosure with dual compartments to keep all electronic components seperate from the "wet" or analysis components. The Biotector 990 has a built-in microcontroller and is operated through a membrane keypad.

Sampling:
A representative unfiltered sample from the stream to be analysed is pumped into the analyser. The sample injection valve automtically selects the appropriate sample volume for the optimum measuring range.
TIC Detection:
Acid is added to lower the pH so that inorganic carbon may be sparged off as carbon dioxide. As the Biotector 990 actually measures the level of TIC in the sample, it will not allow TIC to carry over into the TOC measurements
Oxidation:
The ozone genrator is switched on to generate ozone used in the reaction. Sodium hydroxide is added ot raise the pH of the sampel to the point where the production of hydroxil radicals is optimised. In these conditions, total and effective oxidation takes place.
TOC Calulation:
To remove the carbon dioxide from the oxidised sample, the pH of the sample is lowered again. The carbon dioxide is sparged and measured by the IR-detector. The result is calculated and presented on screen and as a 4-20mA output. All data is stored in the system's archive

Biotector 990 Data Sheet...Click Here