Brief introduction:

Fwa-201b fluorescent brightener detector: working power supply: 220 V AC power supply; operating temperature: 0 ℃ - 40 ℃; operating humidity: < 90% (40 ℃); fast detection speed, with results within 1 minute; UV short wave wavelength: 254nm, external wavelength: 365nm, visible light source, UV filter size: 200 × 50mm; image storage capacity: more than 3000 pieces; the instrument is equipped with external power supply and built-in large capacity lithium battery

Details:

The whitening function of the fluorescent whitening agent detector is to use the chemical complementary color principle to make the yellowing material not only reflect visible light (red, orange, yellow, green, green, blue, purple) after being treated by fluorescent whitening agent, but also absorb ultraviolet light other than visible light, and convert it into visible light with blue and purple to reflect, thus offsetting the original yellow of the material and making it clean White eyes. Because the material basis of fluorescent whitening is ultraviolet, which is rarely produced in light source in daily life, the whiteness of fluorescent whitening under sunlight is more white than that under light. Under the illumination of xenon arc lamp of Jiapeng fluorescent brightener detector, the fluorescent substance in fluorescent whitening agent is excited to generate electrons in the first excited singlet state. When the electrons in the excited singlet state jump back to the vibration energy of the ground state, they will emit fluorescence, which can be observed in the dark. The fluorescent whitening agent can be determined by whether the sample can be seen fluorescence under the illumination of the instrument.

Application range:

It is widely used in agricultural products and food processing, storage, customs entry and exit, animal husbandry, scientific research, circulation and other areas of field batch rapid detection. For example, for the color protection of Lentinus edodes, mushrooms, edible fungi, flour, aflatoxin, food additives, deteriorated vegetables, fruits, cocoa butter, chocolate, fat, honey, sugar, eggs, paper cups and food packaging, etc.

Performance advantages:

1. The detection method was in accordance with the Ministry of agriculture standard "NY / t1257-2006 detection of fluorescent substances in edible fungi"

2. LCD Chinese display function, microcomputer control, switching display

3. Dark box type fully enclosed structure, specially designed with anti ultraviolet observation port, which can protect eyes and facilitate observation

4. Alarm function: when the machine stops running automatically, the alarm will remind the operator.

5. The angle of ultraviolet lamp can be adjusted, and the intensity of ultraviolet light can be adjusted

6. The ultraviolet light source is equipped with a filter to enhance the transmission of 254nm and 365nm ultraviolet light

7. Through the digital camera microcomputer control, the sample is transferred to the computer, and the image is saved, analyzed and inquired

8. AC and DC dual-use, built-in large capacity rechargeable battery, to achieve single site rapid detection

Technical parameters:

Working power supply: 220 V AC power supply;

Service temperature: 0 ℃ - 40 ℃;

Humidity: < 90% (40 ℃);

The detection speed is fast, and the results can be obtained within 1 minute;

UV short wave wavelength: 254nm

Ultraviolet wavelength: 365 nm visible light source

Size of UV filter: 200 × 50mm

More than 3000 pictures are stored;

The instrument is equipped with external power supply and built-in large capacity lithium battery

Instrument size: 310 × 200 × 300

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