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GENERAL INFORMATION
Product Description
The Model 2000 Process Analyzer is a two channel analyzer designed for the continuous
measurement of dissolved oxygen and/or suspended solids in mixed liquor aeration basins. The
microprocessor-based electronics of the Model 2000 analyzer provide a high degree of flexibility and ease
applications. The DO sensor to be used with this analyzer is an optical type sensor that measures the
fluorescence and quenching reactions of a ruthenium complex that is immobilized in a sol-gel matrix. The
SS sensor operates on the principle of single gap light absorption as a means of detecting the presence of
suspended solids.
The Model 10 Dissolved Oxygen sensor is designed for the continuous monitoring of dissolved
oxygen in water and wastewater where parts per million accuracy is required. The unit will display
dissolved oxygen content in either PPM, mg/l or %SAT. The resolution in PPM and mg/l mode is 0.01
over a range of 0.00 to 3.99 and 0.1 over a range of 4.0 to 20.0. The resolution in %SAT mode is
0.1%SAT over a range of 0.0 to 99.9%SAT and 1%SAT over a range of 100 to 400%SAT. Temperature
is displayed in 0.1 degree Celsius increments over a 0.0 to 50.0 degree Celsius range or 1 degree
Fahrenheit increments over a 32 to 122 degree Fahrenheit range. It incorporates self-cleaning optics via
air or water jet.
The Model 15 TSS sensor has been designed for medium ranges (0 to 30,000 mg/l) as commonly
found in aeration basins of wastewater treatment plants. The Model 15L sensor has been designed for low
ranges (0 to 1500 mg/l) as commonly found in effluent streams. Both sensors utilize an infrared emitter to
minimize color effects and compensates for emitter variations due to temperature by measuring source
brightness. They incorporate self-cleaning optics via air or water jet.
Packaging
The analyzer is housed in a NEMA 4X enclosure (see Drawing IIG01N111 for Outline and Mounting)
and is designed for outdoor mounting. For areas where the environmental temperature is expected to
drop below 14 degrees Fahrenheit (-10 degrees Celsius) for extended periods of time, the optional
automatic heater assembly is recommended.
of use. The instrument is designed to operate with any combination of Aysix sensors in a variety of
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