Products Description
Ammonia nitrogen monitors are mainly used to measure the ammonia nitrogen content in water, which helps to evaluate the pollution and "self-purification" status of water bodies. Ammonia nitrogen in water refers to ammonia in the form of free ammonia, which mainly comes from the decomposition products of nitrogen-containing organic matter in domestic sewage by microorganisms, industrial wastewater such as coking synthetic ammonia, and farmland drainage. When the ammonia nitrogen content in water is high, it is toxic to fish and also harmful to humans to varying degrees. Therefore, the ammonia nitrogen content is an important indicator to characterize water pollution.
The basic principle of the ammonia nitrogen monitor is that the water sample is heated and distilled in a slightly alkaline expelling liquid, and the released ammonia gas is absorbed by the absorption liquid. Methyl red is used as an indicator, and the ammonium in the absorption liquid is titrated with a hydrochloric acid standard solution. The photoelectric reaction is used to indicate the arrival of the end point, and then the amount of ammonia nitrogen in the water sample is calculated by a formula based on the consumption of the hydrochloric acid standard solution, and the result is displayed on the display.
Product Features
●LCD display, large screen LCD backlight display, humanized program design.
●Wide measuring range, and can automatically switch the range according to the actual situation of the water sample.
●Automatic constant temperature control system, PID adjustment technology, constant temperature and high precision during the digestion process;
●With correction mode, automatic calculation of slope, intercept and correlation coefficient, high measurement accuracy.
●Intelligent design of fault self-diagnosis makes instrument management and maintenance simple and convenient.
●The instrument has a built-in real-time clock, and each measurement record has a measurement timestamp, which is convenient for statistics and inquiries;
●Large-capacity data storage and power-off protection design ensure that the instrument is not damaged and data records are never lost.
●Strong anti-interference ability, suitable for industrial sites, and can be widely used in the monitoring of surface water and pollution sources.
●Small reagent usage, low operating cost, strong anti-interference ability
Product Specification
| Measuring range | 0.1~1000 mg/L |
| Response time | < 2 min |
| Maximum measurement error | Difference (± 5 % of measured value) ± (0.2 mg/L) |
| Repeatability | ± 3 % |
| Calibration Mode | Two-point or three-point calibration, offset calibration (13 sections are available) |
| Input Impedance | >10^12Ω |
| Relay output | Two sets of ON/OFF contact output, high and low points, hysteresis can be set by any program, 240VAC/0.5A |
| Analog Output | 1 or 2 4~20mA analog signal outputs, users can set the corresponding output value, load 500Ω |
| Ambient temperature range | -20 ~50 °C |
| Storage temperature | 2~40 °C |
| Process temperature range | 2~40 °C |
| Maximum allowable overpressure value of process pressure | 400 mbar (160 μm2O) |
Product Dimensions
Product Features
●LCD display, large screen LCD backlight display, humanized program design.
●Wide measuring range, and can automatically switch the range according to the actual situation of the water sample.
●Automatic constant temperature control system, PID adjustment technology, constant temperature and high precision during the digestion process;
●With correction mode, automatic calculation of slope, intercept and correlation coefficient, high measurement accuracy.
●Intelligent design of fault self-diagnosis makes instrument management and maintenance simple and convenient.
●The instrument has a built-in real-time clock, and each measurement record has a measurement timestamp, which is convenient for statistics and inquiries;
●Large-capacity data storage and power-off protection design ensure that the instrument is not damaged and data records are never lost.
●Strong anti-interference ability, suitable for industrial sites, and can be widely used in the monitoring of surface water and pollution sources.
●Small reagent usage, low operating cost, strong anti-interference ability
Product Dimensions
Product Specification
| Measuring range | 0.1~1000 mg/L |
| Response time | < 2 min |
| Maximum measurement error | Difference (± 5 % of measured value) ± (0.2 mg/L) |
| Repeatability | ± 3 % |
| Calibration Mode | Two-point or three-point calibration, offset calibration (13 sections are available) |
| Input Impedance | >10^12Ω |
| Relay output | Two sets of ON/OFF contact output, high and low points, hysteresis can be set by any program, 240VAC/0.5A |
| Analog Output | 1 or 2 4~20mA analog signal outputs, users can set the corresponding output value, load 500Ω |
| Ambient temperature range | -20 ~50 °C |
| Storage temperature | 2~40 °C |
| Process temperature range | 2~40 °C |
| Maximum allowable overpressure value of process pressure | 400 mbar (160 μm2O) |
