Turbidity, that is, the degree of turbidity of water, is caused by a trace of insoluble suspended matter and colloidal substances in water. The unit of measurement used in the ISO standard is FTU (turbidity unit), and the FTU is consistent with NTU (turbidity measurement unit). The turbidimeter is based on this principle to measure the turbidity of water. Introduction to the turbidity meter A turbidimeter is a device that measures the turbidity of water. There are scattered light type, transmitted light type and transmission scattered light type, etc., collectively referred to as optical turbidimeter. The principle is that when the light is irradiated onto the liquid surface, there is a certain correlation between the incident light intensity, the transmitted light intensity, the scattered light intensity ratio and the water sample turbidity, by measuring the transmitted light intensity, the scattered light intensity and The turbidity of the water sample is determined by the ratio of the incident light intensity or the transmitted light intensity to the scattered light intensity. Optical turbidimeters are used in the laboratory and are also used for automated continuous measurements in the field. Turbidimeter type Scattered light, transmitted light and transmitted scattered light, etc., commonly known as optical turbidimeters, as well as online turbidity analyzers. Online turbidity analyzer The online turbidity analyzer has a built-in microprocessor, advanced configuration and powerful functions. It is a very sophisticated turbidity measuring instrument. The 880nm infrared light source passes through the optical lens and penetrates the sample liquid. The scattered light in the 90° direction is measured according to the ISO7027 standard. In principle, the turbidity analyzer can measure the turbidity of raw or purified water, such as drinking water, various production and industrial waters, and any place where qualified water is required, using filtration devices in different locations. Compact product, built-in backlit LCD screen, data memory, relay control output (3 channels). The turbidity controller outputs a 4 to 20 mA isolated signal that transmits reliable data for any location where turbidity needs to be monitored and controlled. Performance characteristics 1. It has a chromaticity compensation function, which compensates for any scattered light filtered by the optical lens; 2. The special defoaming device of the sensor is effective in preventing bubble interference; 3. Chinese menu display; 4. Relay contact output (3 channels): H, L, cleaning control; 5. A microprocessor based digital program controller; 6. Large size backlit LCD display (192*64 dot matrix); 7. Independent 4~20mA DC) transmission output; 8. Automatic wiper cleaning control function; 9. Bracket mounting / 2B pipe post installation. Application field Municipal water supply 2. Drinking water treatment plant 3. Sewage treatment plant 4. Comprehensive purification pool 5. Pulp and paper industry 6. Wastewater treatment plant 7. Manure treatment plant 8. Chemical industry 9. Industrial wastewater treatment 10. Livestock wastewater treatment How the instrument works 1. This instrument uses the principle of integrating sphere turbidity measurement: A bundle of parallel light propagates in a transparent liquid. If there are no suspended particles in the liquid, the beam will not change direction when it travels in a straight line. If there are suspended particles, the beam will change when it encounters the particles (regardless of the transparency of the particles) Whether or not). This forms what is called scattered light. The more particles (the higher the turbidity) the more severe the scattering of light. Turbidity is measured using an instrument called a turbidimeter. The turbidimeter emits light through a length of sample and detects how much light is scattered by particles in the water from a direction 90° from the incident light. This method of measuring scattered light is called a scattering method. Any true turbidity must be measured in this way. The turbidimeter is suitable for both field and laboratory measurements as well as for continuous monitoring throughout the day. A turbidimeter can be set to alert when the measured turbidity value exceeds safety standards. As shown in the figure: the incandescent light from the light source is concentrated by the concentrating mirror and then irradiated on the pinhole; the collimating objective lens turns the light emitted by the pinhole into a parallel beam with good parallelism; the parallel light is decomposed into the sample Transmit light and scattered light (respectively labeled as Tp) and Td) and enter the integrating sphere. Two inner photosensitive members are mounted on the inner wall of the integrating sphere, which respectively receive transmitted light and scattered light. After the optical signal and the scattered light signal are amplified and processed by the circuit, the following display is displayed: Beijing Heng Aode Instrument Co., Ltd. specializes in stainless steel water collector, tank bottom weld vacuum test box, reading instrument, eight-stage air microbial sampler, relay comprehensive tester, dual-wavelength scanner, coating thickness gauge, soil Crusher, tempered glass surface flatness tester, sound sensor, portable electric water level gauge, network mouth flow meter, corrosion rate meter, portable scratch tester, freezing point tester, water quality tester, online ammonia tester, coating Thickness gauge, coating thickness gauge, soil pulverizer, digital thermometer, gas sampling pump, ceramic impact tester, automatic crystallization point tester, drug freezing point tester, reed switch tester, constant temperature water bath , gasoline root transfer, gas sampling pump, tempered glass tester, water quality tester, PM2.5 tester, inhalable particulate matter detector, high frequency heat sealing machine, strain control triaxial instrument, milk somatic cell detector, helium gas concentration Detector, soil moisture conductivity tester, field strength meter, collection box, color ratio tester, capillary water absorption time measuring instrument, redox potentiometer vibrometer, Carbon oxide carbon dioxide detector, CO2 analyzer, oscillopolarograph, slime content tester, automotive starter power supply, automatic potentiometric titrator, portable thermometer, zirconia analyzer, reed switch tester, precision conductivity Instrument, TOC water quality analyzer, microcomputer plasticity measuring instrument, wind direction station, automatic spotting instrument, soil oxidation reduction potentiometer, digital thermometer, portable total phosphorus tester, corrosion rate meter, constant temperature water bath, residual chlorine detector , free expansion rate meter, centrifugal cup, concrete saturated vapor pressure device, particle strength tester, Gauss meter, automatic film coating machine, safety valve grinding tool, the company adhering to the "customer first, forge ahead" business philosophy, adhere to the "customer The principle of "one" provides quality services to our customers. 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