The (often referred to as the Access 643a) is a reagent-less, online or portable analyzer designed specifically for total organic carbon (TOC) monitoring in pharmaceutical-grade water systems. It operates using UV oxidation technology to measure TOC and conductivity, ensuring compliance with USP methods. Key Performance Specifications (A643a) Operating Range: 1 to 1000 ppb C Resistivity: 0.2 to 18.2 M Ωcap omega Conductivity Range: 0.05 to 5 S/cm (@ 25 °C), with a 0.05 to 150 S/cm purge mode Accuracy: ±plus or minus 2% over full range (conductivity, uncompensated)
ANATEL A643a, Portable TOC Analyzer with UV Detect | Hach India
1% or 1 ppb (whichever is greater) online repeatability Operating Temperature: 15 °C to 35 °C Core Components and Features Anatel A643 Toc Analyzer Manual
Low sample inlet pressure will inhibit measurement.
Regularly scheduled Calibration Standards (including Calibration Blanks and System Suitability Sets ) are required to maintain accurate performance, as Reagecon and Altus Science note. Troubleshooting The (often referred to as the Access 643a)
The A643a-P allows for easy relocation throughout a plant for multipoint analysis.
Alternatively, if you're looking for system suitability standards, I can help you find the correct ones. 60 mL/min to 300 mL/min flow rate; 10
60 mL/min to 300 mL/min flow rate; 10 psi to 100 psi pressure. Sample Temp: 5 °C to 65 °C (15 °C to 35 °C ambient).