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Online total arsenic analyzer
Technical Features:
Touch screen for display and command input;
Multiple sampling and measuring modes;
Unique design;
Lower failure rate, less maintenance, lower reagent consumption and higher cost performance.



Technical data:
◆   Method of measurement according to: Arseno-molybdenum blue spectrophotometric method;
◆   Measuring range: 0 mg/L-5 mg/L;
◆   Accuracy: ≤±10%;
◆   Reproducibility: ≤±5%;
◆   Measuring cycle: Min. 35 min;
◆   Sampling cycle: Periodic (with the interval adjustable between 10 min and 9999 min) and hourly measuring modes;
◆   Calibration cycle: Adjustable within the range of 1 to 99 days;
◆   Maintenance cycle: Once every month and approx. 30 min each time in general;
◆   Reagent consumption: <RMB0.5 yuan per sample;
◆   Output: One-channel RS-232, one-channel RS485 &2-channel (4 ma-20 ma); GPRS communication.
◆   Environmental requirements: A temperature-controlled room; recommended temperature: +5 °C-28 °C; humidity: ≤90% RH (non-condensing);
◆   Power supply: AC220 V±10%, 50 Hz±10%, 5 A;
◆   Size: 1500 mm high x500 mm wide x450 mm deep;
◆   Others: Fault alarm, no loss of data in the case of power failure, and touch screen for display and command input; in the case of fault reset or power ON after power failure, the analyzer automatically discharges residual reagent inside and restores the working condition;

Measuring principle:
With the water sample first digested at high temperature with acid and then mixed with the regulator, the arsenic in the sample reacts with the indicator and produces a colored complex in the presence of acid environment and an indicator; the analyzer detects this color change and converts it into and outputs the total arsenic. The colored complex produced amounts to the quantity of total arsenic.