CA8-TP/TN Analyzer

The CA8 Series Analyzers are a family of on-line sequential sampling analyzers that use Colorimetric technologies to perform an analysis.
The analyzers can be configured to perform most colorimetric based laboratory analysis that use up to four reagents.

The CA8 Analyzers are easy to start up and use, simply connect the sample, waste and reagent lines and then power up the Factory Calibrated analyzer.
Wall mounting hardware is standard but an optional bench top stand with reagent holder is also available.
Accessing information or customizing an analysis routine is easily accomplished with the simple, user-friendly menu structure and touch screen interface.

The analyzer has two separate enclosures with two lockable doors.
The Top enclosure, called the ELECTRICAL enclosure, includes the main power supply, the controller PCB assembly and the touchscreen interface.
The Bottom enclosure, called the LIQUIDS enclosure, includes all the components involved in the sample and reagent flow, mixing and reaction stages (sampling pump, reagent Micro Pumps and colorimetric reaction cell).
Numerous analysis configurations can be programmed, depending on the accessories and the number of micro-pumps mounted in the Liquids enclosure.

The CA8-TP/TN are based on the measurement of color formation in the sample after the addition of reagents (Potassium persulfate).
The absorbance of the solution is measured though a Quartz Reac tion Cell at a specific wavelength using a long-life LED light source and a photometer.
The absorbance is related to the sample con centration according to 'Lambert-Beer Law'.

The CA8-TP/TN make two measurements during an analysis cycle.
The first measurement is of the raw sample which sets the base line for the compensation of color, turbidity and optical characteristics of the cell.
The second measurement occurs after the color forming reagents have been added to the sample, mixed and adequate time has passed to allow for color formation.
The concentration is calcu lated using the difference between the two absorbance measure ments and the stored calibration information in the analyzer.

The CA8-TP/TN typically make a single measurement per analysis cycle, although a user defined calibration or cleaning sequence can be added to proceed the measurement every “X” number of meas urement cycles.
A standard sequence would consist of a drain and rinse cycle, sample acquisition, addition of reagents, mixing time, waiting period and measurement.
Higher Range samples are rec ommended using the optional Dilution Module providing 10:1 or 50:1 dilution ratios.

The CA8 Analyzer home screen displays the measured parameter, the status, % reagent volumes, time and Menu choices.
The on screen HELP menu includes information on Start Up, Shut Down, Start/Stop Commands, Calibration, Function List, Programing, Maintenance and Troubleshooting.
The outputs include two Alarm Relays and a 4-20 mA channel.