Medical Mask Differential Pressure Tester is used for medical mask breathability (pressure difference) test, using suction type air source as the instrument power source, not limited by the space of the test site, equipped with precision differential pressure sensor digital display of the pressure difference between the two sides of the specimen, special sample clamp to ensure a firm grip on the specimen. Install the mask sample on the fixed cross-sectional area of the channel (fixture), start the vacuum pump, the specific flow rate of airflow will produce a certain pressure difference between the upper and lower sides of the test sample, so as to calculate the breathability of the mask.
Medical Mask Differential Pressure Tester built-in precision pumping, flow sensor, differential pressure sensor, single-chip computer control, precise control of the flow rate and differential pressure measurement. The tester has a high-resolution differential pressure sensor with digital display to show the results. The air pump can simulate artificial respiration, and the flow sensor and differential pressure sensor can be used to collect test data pressure and react to the computer software.
Mouthpiece differential pressure tester instructions for use.
1, the instrument must be placed on a stable table before use, do not allow to move the machine in the process of use;
2, select the appropriate power supply voltage, do not be too high, to avoid burning the device;
3, in the event of abnormalities in the instrument, immediately stop using;
4, the machine must have good ventilation when working;
5, each test is completed, clean the machine, keep the machine clean; control box part, must be wiped with a dry cloth, do not use a wet cloth.
Mask differential pressure tester operation methods are as follows.
1, power on the preparation: in the standard test environment to the instrument power preheating, preheating time of at least 30 minutes. If the preheating time is less than 30 minutes, it will have an impact on the test results
2, sample preparation: take a certain number of samples to be tested, the number of generally not less than 5. Check the specimen, the specimen should be free of obvious defects.
3、Prepare for the test: connect the gas source, the pressure of the gas source is not less than 0.6MPa.
4、Conduct the test: set the experiment and test flow, place the specimen, start the test, the end of the test, the system automatically determines the experimental results, showing pass/fail.
5、Conduct the next set of specimen test: If you need to continue the test, repeat the above experimental steps.
6, the end of the test: after the test, return to the main page. Turn off the power and gas source on the equipment, cover the dust cloth. The dustproof cloth should be kept neat and clean, and there should be no dust.
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