Airflow resistance testing machine
Whats/App: +86 156 1874 6768
Web: standard-groups.com
Standards
YY0461 - 2003：Technical Requirements for Protective Masks for Medical Use
Features
Embedded Linux operating system, secure, efficient, and durable.
Get both English and Chinese input capabilities for the same price.
Non-standard customized services to create exclusive equipment tailored to your company.
Expand to various testing projects by changing dedicated custom fixtures.
Personalized input of production units and batches to obtain original production reports.
Processing speed up to 72MHz per second, testing resolution improved to 0.0001.
Touchscreen control for easier operation and more intuitive data display.
Multiple specifications, one machine compatible with various applications, automatic generation of test reports.
Onboard printer for quick printing of test results.
Real-time display of test pressure values, automatic power off in case of overload, and automatic data storage upon power failure.
Three-level password protection for secure and reliable information.
Technical Parameters
| Parameter | Specification |
|---|---|
| Pressure Measurement Range | Usually 0.01kPa to 10kPa; error ≤ ±1%; display resolution: 0.01kPa. This range covers airflow resistance measurement requirements for most catheters. |
| Flow Measurement Range | Typically 0L/min to 50L/min (varies by tester model), enabling airflow resistance testing of catheters under different flow conditions. |
| Test Duration | Usually 1 second to 10 minutes; error ≤ ±1 second. This range ensures test accuracy and stability. |
| Accuracy | Pressure measurement accuracy: ±0.01kPa; flow measurement accuracy: ±2.5% (or lower, depending on specific model). |
Accessoriess
Standard accessories: Dedicated clamps/connectors for different diameter tubes, airflow connecting tubing, sensor calibration parts, operating manual, and calibration certificate.
Optional accessories: Sample fixing bracket (for assisting tube installation), data export cable (for some models).
Test Procedures
1. Preparation
Ensure the instrument is in normal working condition and check that the power cord, sensors, and other components are intact. Connect the tubing and ensure a good seal between the tubing and the instrument interface.
2. Setting Parameters
According to the test requirements, set the relevant parameters of the instrument, such as flow rate and pressure measurement range.
3. Starting the Test
Start the instrument to begin the test. The instrument will automatically inject gas into the tubing and measure the pressure difference between the inlet and outlet. Based on the measurement results, the instrument will calculate the airflow resistance of the tubing.
4. Data Recording and Analysis
After the test is completed, the instrument will output the test results. The operator should carefully record this data and analyze it to evaluate the performance of the tubing.
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