【Product Introduction】
ZW-300Z series integrated open filtration system adopts membrane filtration method, built-in diaphragm liquid pump, and uses negative pressure filtration to achieve the purpose of bacterial interception. It is equipped with a 50mm microporous filter membrane and an open filter (ZW-3B), which reduces the inspection cost and improves the inspection speed. Its features: adopting a "two-in-one" design, no external vacuum pump and buffer bottle are required when filtering samples, reducing laboratory equipment and improving the cleanliness of the laboratory. Advantages: Multiple microbial interceptions can be carried out simultaneously for one sample, and multiple samples can be carried out simultaneously, which can save a lot of time.
【Working Principle】
Inject the test sample into the microbial limit incubator, and use the built-in diaphragm liquid pump of the tester to negatively filter, and intercept the microorganisms in the test sample on the filter membrane. Use a membrane remover to remove the filter membrane and transfer it to the configured solid culture medium, with the bacterial surface facing up and flat. Cover the lid to form a closed culture box, place it in the corresponding constant temperature incubator for culture and counting.
【Innovation】
ZW-300Z microbial limit filtration system is an improved version of ZW-300. The biggest difference is that ZW-300Z uses a diaphragm liquid pump imported from Germany. It does not require a filter bottle. The liquid is directly discharged through the diaphragm liquid pump, which reduces the tediousness of using the filter bottle, avoids the slow filtration speed caused by poor connection, and greatly reduces the occupation of the operating table.
【Technical features】
1. No filter bottle is required, direct discharge, simple and convenient operation;
2. Built-in German imported diaphragm liquid pump, quality assurance, higher efficiency;
3. More compact body, reducing the occupation of the operating table area;
4. LCD screen display, membrane button control, simple and intuitive operation;
5. Triple filter head design, can filter at the same time, improve work efficiency;
6. The filter head can be quickly disassembled and assembled, simple and fast operation;
7. Disposable filter head and reusable filter head are optional;
8. The filter head can be quickly flame sterilized, convenient for continuous experimental operation.
[Scope of use]:
Pharmaceuticals: Microbial limit testing of purified water, water for injection, etc.
Food: Microbial limit testing of beverages and mineral water purification
Disease control: Microbial testing of air-conditioning water, various rivers, lakes, and seas
Chemicals: Testing of various waters that require microbial testing
Cosmetics: Microbial testing of various waters and products