This instrument uses salicylic acid spectrophotometry to determine ammonia nitrogen. In the presence of sodium nitrosoferrocyanide, ammonium reacts with salicylate and hypochlorite ions to generate a blue compound. Through photometric colorimetry, the ammonia nitrogen concentration detection process is fully automated. The instrument is not interfered by sample turbidity, colorimetry, substrate interference and other factors in analysis. With detection limit of 0.02mg/L, this instrument has high-precision, low detection limit, high stability and little maintenance, realizing fully automatic online monitoring of ammonia nitrogen.
Reliable automatic pre-treatment and anti-interference
The instrument has two pre-treatment methods, direct color test and water vapor distillation pre-treatment.
Good quality control measures to ensure the reliability of the result
The instrument has many functions, including standard sample verification, zero point verification, span verification, zero point calibration, standard sample calibration, automatic calibration of working curve, and automatic test of spike recovery rate.
The instrument can be controlled remotely.
The instrument has automatic fault alarm function, such as component failure alarm, over-range alarm, abnormal data alarm, reagent shortage alarm (water sample, distilled water, reagent), and can record and upload these faults.
The instrument is safe, intelligent and easy to maintain.
It has the functions of regular automatic cleaning and automatic calibration.
It has the function of automatic range switching according to water sample concentration.
It adopts an embedded operating system and runs efficiently.
The insulation resistance between the power supply lead and the casing of the instrument is not less than 20 MΩ.
Data transmission meets national standards.
The instrument has remote reverse control function, two-way data transmission function and working status output function.
It has RS-232, RS-485, RJ-45 standard communication interface, and the instrument communication protocol meets the requirements of H/T 212.
It can be applied to surface water, groundwater, seawater, drinking water sources, pollution sources, industrial wastewater, domestic sewage and other water monitoring.
31/F, Tower Two, Times square, 1 Matheson Street, Causeway Bay, Hong Kong
86 (0)731-89736888
overseas@lihero.com
