Digital 60m short range laser rangefinder is a laser measurement device which is supposed to replace tape measure, ruler, and other traditional length meauring tool. Laser ruler as its name, it is a electronic ruler which user laser to measure distance. 60M Laser Measure,60M Laser Distance Measure,Laser Distance Measure Oem,60M Digitial Laser Distance Measure Chengdu JRT Meter Technology Co., Ltd , https://www.infrareddistancesensor.com
Biological safety cabinet working principle diagram
Our laser measurer has Multiply fuctions:
1. Height measure & Length measure &Distance measure
2. Area Measure
3. Volume Measure
4. Pythagorean Measure
Two aspects of the difference between the clean bench and the biological safety cabinet
Biosafety cabinets and ultra-clean workbench are two kinds of equipment we use. Many people don't understand the difference between the two. They think that the two are similar in use. In fact, there is still a big gap between the biosafety cabinet and the ultra-clean workbench. The difference, the next small series will give you a detailed introduction.
1. Distinguish from the definition of the two:
The biosafety cabinet protects the operator, the laboratory environment, and the laboratory materials from exposure to the above operations in order to manipulate infectious materials such as primary cultures, bacterial strains, and diagnostic specimens. Designed for the production of infectious aerosols and spills.
The ultra-clean workbench is designed to meet the needs of the cleanliness of local work areas in modern industrial, optoelectronics, biopharmaceutical and scientific research trials.
The ultra-clean workbench can only protect the reagents that are operated in the workbench from contamination, and does not protect the staff. The biosafety cabinet is a vacuum system that can effectively protect the staff.
2, from the principle of the two
Biological safety cabinet : It is used as a pathogenic bacteria and mold yeast. The operating area is negative pressure. Simply speaking, it is ventilated everywhere. Of course, the pathogen is not directly discharged to the outside. It is filtered at the top of the biological safety cabinet. On the device, it can be divided into 50% efflux type, 75% efflux type, and 100% efflux type.
Ultra-clean workbench: equivalent to a miniature clean room, to achieve the US federal standard 209E level 100 purification, clean high is very high. Simply speaking, the air is sucked in from the outside, maintaining a positive pressure in the room, and maintaining an additional purification in the operating area through the initial high efficiency air filter.
Regarding the difference in principle between the two, Xiaobian Zui explained it to you through two pictures. I believe that after reading these two pictures, you will have a clearer understanding of this problem.
Ultra-clean workbench working principle diagram