Vacuum 502 Fingerprints Fuming Ark
The working principle of the vacuum 502 fingerprints fuming ark is to use the vacuum environment, make hydrogen base acrylic acid molecules, even into the fold, crease and leather, viscous object, clumps tape inside of the object, such as that the fingerprint of the object inside, can be directly revealed without open it, extract fingerprint, break through the past method only appeared in atmospheric environment, greatly improve the accuracy of the investigation.
Potential trace material evidence at the scene of the crime often need to be revealed through closed containers, by physical or chemical method, the same situation in other conditions, vacuum environment appeared to be significantly better than the effect of atmospheric environment effects, especially some bearing potential trace material evidence of the object (such as: wadded tape) in the crease or volume close state, under the condition of normal pressure inside of the object or the inside often cannot reveal or not ideal, and under the condition of vacuum will enhance the permeation ability of the material, so as to achieve comprehensive, uniform effect. At present, the products have been listed in the ministry of public security product catalogue and Shanghai municipal public security bureau as requested equipment .
Innovation:
1. Uniquely applied intelligent touch-screen control vacuum 502 fuming cabinet.
Appeared in the whole process, the automatic and intelligent run by touch screen operation, manifested, program and parameters are controlled through touch screen. After appeared the entire program, touch screen also has the text reminder "all the work has been done", prompt work has been completed, can remove he object.
2. Network and USB interface, real-time record work.
During work, run by a microcomputer programmable technology of new intelligent touch-screen, industrial-grade integration application module and a microcomputer data analysis and the intelligent PID control technology, the operation is convenient, more accurate temperature and humidity control, and has a variety of real-time adjustment parameters. At the same time, also can record work conditions and parameters by the U disk, and can use communication interface to connect the computer through the network, control and adjustment parameters, provides a real laboratory argumentation and archived material.
3. The voice prompt function. Show each program with voice prompt, highlight the humanization.
These three features, is unique in similar products at home and abroad. The technology is initiative in domestic; and it is in the lead by the international. Only in terms of function, it has been beyond the imported similar products.
4. Large space. Working volume of 72 l, so far, is larger than the similar products in volume.
Technical parameters:
Intelligent touch-screen: 7 inches
1. The overall dimensions: 1000 * 600 * 780 mm (width * depth * height)
2. Ark size: ф 450 * 450 mm (diameter * depth)
3. The total capacity of product: 72 l
4. Working voltage: AC220V working current: 2 a
5. Real time appearance: 25 minutes.
6. Humidity inside ark: 80 RH %, +/- 3 RH %,
Appear plate temperature: 100 ℃, plus or minus 3 ℃ (vacuum).
7. Maximum vacuum: - 950 mbar.
8. The built-in circulation purification system: every time after the fuming, the purification procedure will start automatically after purification air is in line with health standards.
9. After pumping vacuum, appeared the "502" in the body cavity of the gas purity, several times higher than that of pumping air into vacuum state manifest can greatly shorten the time and improve quality. This device will replace the regular 502 fuming ark, contribute to the forensic equipment development of our country.
The main advantages:
At present, domestic still do not have the same technical parameters of domestic similar products, the only one that by my company and the Shanghai public security bureau criminal technology management center localization of joint research and development of products, the technical indexes are the same with the imported similar products.
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