Ammonia nitrogen automatic monitoring device

The ammonia nitrogen automatic monitoring device has the functions of automatically collecting, storing, processing, querying, displaying, and outputting all data, instrument parameters, and operation logs. Selecting valve components, selecting reagent sampling timing, flexible and diverse channels, with advantages such as small size, easy maintenance, and high lifespan.

Ammonia nitrogen in water refers to the ammonia present in the form of free ammonia, mainly derived from the decomposition products of nitrogen-containing organic matter in domestic sewage by microbial action, industrial wastewater such as coking and synthesis of ammonia, and agricultural drainage. When the ammonia nitrogen content in water is high, it exhibits toxic effects on fish and poses varying degrees of harm to humans. The determination of ammonia nitrogen content in water is helpful in evaluating the pollution and "self purification" status of water bodies, therefore ammonia nitrogen is an important indicator for characterizing water quality pollution.

The main method for measuring ammonia nitrogen is salicylic acid spectrophotometry. The measurement principle is that under existing conditions, free ammonia and ammonium ions in the water sample react with salicylate and hypochlorite ions to form blue compounds; Then, the absorbance was measured at around 660nm using the photoelectric colorimetric method; Quantitative analysis of ammonia nitrogen in water samples based on the linear relationship between absorbance and ammonia nitrogen concentration values.

When ammonia dissolves in water, a portion of it reacts with water to form ammonium ions, while another portion forms hydrated ammonia, also known as non ionized ammonia. Non ionic ammonia is the main factor causing toxicity to aquatic organisms, while ammonia ions are relatively non-toxic. National standard Class III surface water, non ionized ammonia concentration ≤ 0.02 milligrams per liter.

Ammonia nitrogen automatic monitoring deviceIt has the function of automatically collecting, storing, processing, querying, displaying, and outputting all data, instrument parameters, and operation logs. Selecting valve components, selecting reagent sampling timing, flexible and diverse channels, with advantages such as small size, easy maintenance, and high lifespan. It has a digital communication interface, which outputs commands, related data, and operation logs through the digital communication interface, and can receive and manage them. The remote control commands of the platform include functions such as remote start and remote timing.

1. Equipped with automatic standard sample verification function, abnormal alarm and power-off will not result in data loss; Capable of adding identification to different test data. Can achieve serial port output and network port output of monitoring data.

2. It has the function of collecting and storing waste liquid and cleaning wastewater separately.

3. It has multiple ranges and can automatically switch ranges, and the instrument displays test results. It has a large storage capacity and can store historical data for no less than 5 years (with a measurement cycle of 1 hour per time).

4. After abnormal reset and power failure, the instrument will automatically discharge residual reactants and restore working status.

5. It has the function of automatically collecting, storing, processing, querying, displaying, and outputting all data, instrument parameters, and operation logs. Selecting valve components, selecting reagent sampling timing, flexible and diverse channels, with advantages such as minimum dead volume, easy maintenance, and high lifespan.

6. It has a digital communication interface, which outputs commands, related data, and operation logs through the digital communication interface, and can receive remote control commands from the management platform, including remote startup, remote timing, and other functions.