Medical mask breathing resistance tester-mask breathing resistance testing equipment

Medical mask breathing resistance tester/mask breathing resistance testing equipment is used to measure the inhalation and exhalation resistance of medical surgical masks, disposable medical masks, ordinary masks, dust masks, and anti-fog masks under specified conditions, suitable for masks The production plant and the national labor protection equipment inspection agency shall conduct relevant testing and inspection of mask products.

Applicable standard:

GB/T 2626-2019 Respiratory protective equipment Self-priming filter type anti-particulate respirator 6.5 Inhalation resistance 6.6 Expiration resistance

GB/T 32610-2016 Technical specifications for daily protective masks 6.7 Inhalation resistance 6.8 Expiration resistance

GB/T 2890-2009 Respiratory protection self-priming filter gas mask 6.9

YY/T 0969-2013 Disposable medical masks 4.6 ventilation resistance

Main parameters of medical mask breathing resistance tester/mask breathing resistance detection equipment:

1. Flowmeter range: 0L/min～100L/min, the accuracy is ±2%;

2. Micro pressure measuring range: -1000Pa～1000Pa, the precision is 1Pa;

3. The air volume of the air pump: not less than 100L/min;

4. Constant ventilation: (85±1)L/min;

5. Equipment power supply: AC220V, 50Hz.

Technical features:

1. The instrument consists of an air source that can adjust the flow rate, a human head model specified by the standard, a two-line system of inhalation and exhalation, and a respiratory resistance measurement system.

2. The flow sensor has high sensitivity and has a very small initial flow.

3. The flow sensor chip adopts thermal mass flowmeter without temperature and pressure compensation, which ensures the high-precision measurement of the sensor.

4. Multiple sensors are integrated on a single flow sensor chip, which greatly improves the range ratio of the sensor.

5. The zero point stability of the flow sensor is high, and it has high stability of the full range, high accuracy and excellent repeatability of the full range, and has the characteristics of low power consumption, low pressure loss and fast response speed.

6. There is 4M memory in the data recorder for measurement value recording.

7. The micro pressure gauge sensor adopts a two-wire system, with high precision and good stability. It adopts explosion-proof design and is safe and reliable.

8. The sensor range and zero point of the micro pressure gauge are continuously adjustable externally, the damping is adjustable, there are no mechanical moving parts, and the maintenance workload is less.

9. The whole instrument adopts a special air circuit conversion element, which ensures the convenient and quick conversion of the expiratory and inspiratory two-line systems.

ps: (WLJCDM809)
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