Product Description
TNiG-3051 Type Total Nickel Analyzer
Total nickel on-line automatic analyzer is an optical heavy metal on-line analyzer designed in accordance with national environmental protection standards, which is applied to the simultaneous on-line analysis of various heavy metal elements in surface water, industrial process water, industrial wastewater and other water quality. The measured heavy metal elements include class I and class II heavy metal prevention and control projects in the 12th Five Year Plan for comprehensive prevention and control of heavy metal pollution issued by the Ministry of environmental protection.
Measurement principle:
The water sample is oxidized by ammonium persulfate. In the alkaline environment and in the presence of indicator (dimethylglyoxime), it reacts with indicator to form a colored complex. The analyzer detects the change of color and converts the change into total nickel value for output. The amount of colored complex is equal to the total amount of nickel.
Technical Index:
Method basis: dimethylglyoxime Spectrophotometry
Measurement range: 0.00-2.00 mg / L 0.10-10.00 mg / L;
Accuracy: ≥ 0.2 mg / L, not more than ± 10%; Less than 0.2 mg / L, not more than ± 0.02 mg / L.
Repeatability: no more than ± 5%; Stability: <± 10% within 24 hours;
Measurement period: the minimum measurement period is 30 minutes,
The color development time can be modified at will in 5-120min
Sampling period: time interval (10-9999min can be adjusted arbitrarily) and whole point measurement mode;
Calibration cycle: adjustable at any time in any interval of 1-99 days;
Output: 4 ~ 20mA (2-way) RS232, RS485;
Environmental requirements: indoor with adjustable temperature,
recommended temperature + 5-28 ºC; humidity ≤ 90% (no condensation);
Power supply: AC220 ± 10% v, 50 ± 10% Hz, 5A; Size: H 1570 × w 500 × D 450 mm;
Others: data will not be lost in abnormal alarm and power-off, and the touch screen display and command input will not be lost; after abnormal reset and power-off, the instrument will automatically discharge the residual reactants in the instrument and automatically restore the working state.
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