Measurement principle

　　The water sample is oxidized by the oxidant ammonium persulfate, and in an alkaline environment and in the presence of an indicator (butanedione oxime), it reacts with the indicator to produce a colorful complex, which is detected by the analyzer and converted to a total nickel value output. The amount of colorful complex generated is equivalent to the total amount.

Main features

　　Touch screen display and command input; multiple sampling and measurement modes, unique design, lower failure rate, lower maintenance, lower reagent consumption and higher cost performance.

Technical specifications

　　I. Method basis: Butanedione oxime spectrophotometric detection.

　　Measuring range: 0 mg/L-5mg/L .

　　Accuracy: not more than ±10%.

　　Repeatability: not more than ±5%.

　　V. Measuring cycle: the minimum measuring cycle is 35min.

　　Sampling cycle: time interval (10min-9999 min arbitrarily adjustable) and whole point measurement mode.

　　VII, calibration cycle: 1-99 days any interval any moment adjustable.

　　VIII. Maintenance cycle: generally once a month, each time about 30 min.

　　Nine, reagent consumption: less than 0.5 yuan / sample.

　　X. Output: 1 RS-232, 1 RS485, 2 (4-20mA).

　　XI, environmental requirements: temperature-adjustable indoor, recommended temperature +5 ℃AC28 ℃; humidity ≤ 90% RH (no condensation).

　　XII, power supply: AC220 ± 10% V, 50 ± 10% Hz, 5 A.

　　XIII. Dimensions: H1500 mm × W500 mm × D450 mm.

　　XIV. Others:

　　1) Abnormal alarm and power failure will not lose data;

　　2) Touch screen display and command input;

　　(3) Abnormal reset and power failure after power, the instrument automatically discharges the residual reactants in the instrument and automatically restores the working state.