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TEM Online Total Phosphorus Analyzer

● Water inlets and outlets of sewage plants and waterworks ● Sewage outlets of various enterprises ● Lake and river water quality monitoring stations

Total phosphorus refers to the total of particles and dissolved organic phosphorus and inorganic phosphorus in the water body, and the total phosphorus reflects the degree of pollution of the water body by phosphorus. Increasing the phosphorus content in water will cause eutrophication, cause blooms or red tides, and seriously affect water quality. The measuring method of this instrument mainly uses ammonium molybdate spectrophotometry.

Phosphates and phosphorus-containing compounds in water are hydrolyzed into phosphates under acidic conditions at high temperature and pressure. Phosphorus compounds that are difficult to be oxidized are also oxidized to phosphates by persulfate. Antimony compounds, which are reduced to ascorbic acid to blue phosphomolybdate, the total phosphorus content can be obtained by measuring the absorbance of the phosphomolybdate.

● The method used by this instrument and the ammonium molybdate spectrophotometric method specified in the national standard GB11893-89 have a good correlation with laboratory analysis and meet various parameters specified in HJ / T 103-2003
● Using special photoelectric colorimetric method to eliminate interference caused by color, suspended matter and turbidity;
● Less reagent usage and low operating cost of the whole machine;
● PLC control, high reliability, strong anti-interference ability, suitable for harsh industrial environment;
● Intelligent fault self-diagnosis function, instrument management and maintenance are very convenient;
● Power-off protection design, with automatic data recovery function after power-off;
● It has the alarm function of exceeding the standard, which can be used in conjunction with the sampler to achieve sample retention beyond the standard;
● With network function, data sharing and remote control can be realized through the network platform;
● Equipped with a micro printer, which is convenient for permanent data storage.

Measuring performance

Measuring range: 0 to 2mg / L; 0 to 10mg / L; 0 to 50mg / L; can be expanded to 0 to 60mg / L upon request

Measurement accuracy: ± 0.02 mg / L when ≤ 0.4 mg / L;

> 0.4mg / L, ± 5%

Detection limit: 0.01mg / L

Zero drift: ± 3% FS

Range drift: ± 5% FS

Measurement period: The minimum measurement period is 45min

Reagent consumption: 1.4 ml / time / reagent

Calibration: with online automatic calibration function

Automatic cleaning: the instrument automatically cleans the pipeline after each measurement

Data storage: 500,000 times historical data storage (full data record for more than ten years)

Data protection: no data loss due to abnormal alarm and power failure

Display: touch screen display and command input

Output

Interface output: Standard: RS232 / RS485, two 4-20mA;

Optional: wireless IoT interface, linkage control interface

powered by

AC power supply: 220 ± 22VAC, 50 ± 2.5Hz

Instrument power: 50W daily; <300W at peak

Physical properties

Size: 420 × 600 × 250mm

Environmental performance

Environmental requirements: 5 ~ 40 ℃, relative humidity 80%, no condensation and condensation

External water sample: Pressure: -10 ~ + 2KPa;

Velocity: -1.0 to 0.5m / s;

Temperature: 5 ~ 40 ℃