product overview

TP total phosphorus online monitoring equipment, based on the national authoritative certification method GB 11893-89《Determination of total phosphorus in water quality - Ammonium molybdate spectrophotometric method》It is a cost-effective water quality testing equipment that can quickly determine the concentration value of TP total phosphorus in enterprise wastewater. It uses colorimetric measurement, advanced solid-state cold light source, narrowband interference technology, and microcomputer automatic data processing to directly display and print the concentration value of the sample. The device is equipped with a 7-inch full-color LCD screen and a guided monitoring mode, which reduces learning costs and allows users to easily and quickly operate it.

Detection Principle

According to the development and design of the "Determination of Total Phosphorus in Water Quality - Ammonium Molybdate spectrophotometric method", a digestion device is used for closed digestion. Potassium persulfate is used as an oxidant to convert all phosphorus containing compounds in the sample into phosphate ions at 125 ℃. Then, under acidic conditions, orthophosphate reacts with ammonium molybdate and potassium antimony tartrate to generate phosphomolybdic acid, which is reduced by the reducing agent ascorbic acid to form a blue complex. The total phosphorus detection item is selected by colorimetric method, and the imported cold light source emits a light source signal to the sensor. The data is processed by a RAM processor and directly fed back to the sample concentration value, which is displayed in mg/L.

Technical Parameter

Operation interface

The program adopts a flat card design style, with a clear and easy to understand interface. The overall operation is guided, allowing you to quickly get started and complete water quality monitoring.

Product Features

● AdoptingAmmonium molybdate spectrophotometric methodMeasure the total phosphorus value in water, in compliance with national standardsGB 11893-89《Determination of total phosphorus in water quality - Ammonium molybdate spectrophotometric method》；

Imported solid-state cold light source, stable optical performance, no need for light source preheating, light source lifespan up to 10 years;

Adopting a 7-inch color LCD touch screen and a flat UI design;

Using photoelectric liquid level sensors to achieve precise measurement of reagents;

● Supports automatic calibration, automatic detection, and automatic cleaning, with three calibration and measurement modes available: manual, timed, and equidistant;

● Support manual control and single step debugging for easy hardware debugging;

● Support custom settings for detection parameters;

● Support automatic saving of measurement data and calibration data, as well as saving and viewing of historical data;

● Support system log function, which can query historical records such as instrument faults, alarms, and operations;

● Support leak alarm, heating temperature over limit alarm, and reagent shortage alarm functions;

● Support emergency stop function, which can immediately stop measuring and enter standby mode;

● Support password protection function to prevent non professional users from misoperation;

● It has a (4-20) mA DC isolated signal output, and the output upper and lower limits can be set arbitrarily;

● Equipped with RS-232 or RS-485 digital interface (choose 1 from 2), supporting data export and remote communication;

Low dosage of medication, maintenance free for one month.

application area

It can be widely used for online monitoring of water quality in research institutes, sewage engineering, water environment testing, petrochemicals, metallurgy and steel, biomedicine, food and dairy industry, wool textile printing and dyeing, electronic machinery, aquaculture, photovoltaics, leather, papermaking, and other fields.