3-Ply Film Filter CNW-300S Microbial Limit Test Instrument

The Microbial Limit Test Apparatus is made of stainless steel metal. The test sample is injected into the Microbial Limit Incubator, then filtered through the analyzer using vacuum pump negative pressure, retaining the microorganisms in the filter membrane. The membrane is removed using a membrane picker and transferred to a prepared solid culture medium, with the bacterial surface facing up and flat. The lid is sealed to form a closed culture box, which is then placed in the corresponding incubator at a constant temperature for cultivation and counting.

Application Scope:

Disease Control: Rivers, Lakes, Seas, and Water Samples

Food: Purified Water, Mineral Water, Beverages

Z Drug: Purified Water, Injection Water, Active Pharmaceutical Ingredient, Capsules, Biological Products, Tablets, Oral Preparations

Chemical Industry: Various microbial water samples requiring testing Cosmetics: Various water used and products

Working Principle:

The test sample is injected into the microbial limit test apparatus, where it is filtered through the instrument's built-in imported diaphragm pump under vacuum. Microorganisms in the sample are retained on the filter membrane. The membrane is then removed using a membrane retriever and transferred to a prepared solid culture medium, with the bacterial surface facing up and flat. The lid is sealed to form a closed culture box, which is then placed in the corresponding incubator for culturing and counting.

Operation Steps:

Pump Head Sterilization

2. Place filter membrane

3. Install Filter Cup

4. Filtered samples

5. Remove the filter cup

6. Transfer Membrane

3-Ply Film Filter CNW-300S Microbial Limit Test Instrument

Key Features:

Integrated ultra-small design minimizes the space occupation on the laminar flow bench.

2. Pre-sterilized filter membranes, ready to use upon opening, minimize the primary pollution source to the lowest, enhancing detection reliability.

3. The filter cup features a lip seal design, without the use of clamps or O-rings, ensuring leak-proof operation and uniform microbial recovery rate.

4. Can filter multiple filter membranes simultaneously, significantly enhancing work efficiency.

5. Available in disposable PP filters, reusable glass filters, and stainless steel filters, easy to operate.

Each filter head operates independently for easy and flexible use by the operator.

7. Vacuum pump design features low noise.

8. The instrument surface is mirror-polished for easy cleaning and disinfection.

9. The filter head can be flame-sterilized quickly, facilitating continuous experimental operations.

10. Aesthetically pleasing handles are distributed at both ends of the base, enhancing its stability.

11. A stable low-center design prevents tipping when fully loaded with solution.

Technical Specifications:

Applicable filter membrane diameter: Φ47mm/50mm

2. Effective Filtration Diameter: 40mm

3. Filter Cup Capacity: One-time filter cups available in 100/250ml, stainless steel filter cups in 150ml, glass filter cups in 120ml; other capacities available for customization.

3. Number of filter heads: 3

4. Test Method: Membrane Filtration Method

5. Filtration Method: External vacuum pump filtration

6. Flow Rate: 100ml/15s

7. Sterilization Method for Filter Head:湿热sterilization, flame gun rapid sterilization.

8. Filter Head: Detachable.