Features: The mask breathing resistance tester is used to measure the inhalation and exhalation resistance of respirators and mask-type protective equipment under specified conditions. It is applicable to the relevant testing and inspection of ordinary masks, dust masks, medical masks and anti-haze masks by national labor protection product inspection institutions and mask manufacturers.
Detailed introduction
-- Main uses --
Main uses
The mask breathing resistance tester is used to measure the inhalation resistance and exhalation resistance of respirators and mask-type protective equipment under specified conditions. It is applicable to the relevant testing and inspection of ordinary masks, dust masks, medical masks and anti-haze masks by national labor protection product inspection institutions and mask manufacturers.
Application field
It is used by national labor protection products inspection institutions and mask manufacturers for relevant testing and inspection of ordinary masks, dust masks, medical masks and anti-haze masks.
-- Functional Features --
Product features
The instrument is composed of a gas source with adjustable flow rate, a human head model as specified by standards, a two-tube pipeline system for inhalation and exhalation, a respiratory resistance measurement system, etc.
2. The flow sensor has high sensitivity and an extremely small starting flow.
3. The flow sensor chip adopts a thermal mass flowmeter, eliminating the need for temperature and pressure compensation and ensuring the high-precision measurement of the sensor.
4. Multiple sensors are integrated on a single flow sensor chip, significantly increasing the range ratio of the sensors.
5. The zero stability of the flow sensor is high, featuring high stability throughout the entire measurement range, high accuracy throughout the entire measurement range, and excellent repeatability
It features low power consumption, low voltage loss and fast response speed.
6. The data logger adopts a 128×64 resolution graphic dot matrix LCD with a fully Chinese interface, making operation convenient.
The data logger has 4M of memory for recording measurement values.
8. The micro-pressure gauge sensor adopts a two-wire system, featuring high precision and good stability. It adopts explosion-proof design, ensuring safe and reliable use.
9. The sensor range and zero point of the micro-pressure gauge are continuously adjustable externally, the damping is adjustable, and there are no mechanical moving parts, resulting in less maintenance work.
10. The entire instrument adopts a special gas path conversion component, ensuring that the conversion between the exhalation and inhalation tube systems is convenient and fast.
-- Technical indicators --
Technical parameters
The flowmeter has a range of 0L/min to 100L/min and an accuracy of ±2%
The micro-pressure gauge has a measurement range of -1000Pa to 1000Pa and an accuracy of 1Pa
The suction capacity of the air pump is 40L/min to 100L/min
The ventilation volume remains constant at (85±1) L/min
Power supply: AC220V, 50Hz
enforce standards
GB 2626-2019, GB/T 32610-2016, YY/T 0969-2013, GB 2890-2009, GB19083-2010.
Mask ventilation resistance and pressure difference tester
Detailed introduction
-- Main uses --
Product Introduction
The medical mask gas exchange pressure difference tester and the textile airflow resistance tester are suitable for the determination of gas ventilation resistance and exchange pressure difference of medical surgical masks, and can also be used to measure the gas exchange pressure difference of other textile materials.
-- Functional Features --
Product features
1. It adopts a suction gas source as the power source of the instrument, which is not restricted by the space of the test site.
2. Equipped with a high-precision differential pressure sensor, it digitally displays the pressure difference on both sides of the sample.
3. The specially designed sample clamp ensures that the sample is firmly held.
Application field
Medical device production, research and development, quality inspection departments and institutions
enforce standards
YY 0469-2011, YY 0969-2013, EN 14683:2014
-- Technical indicators --
Technical parameters
Air source suction type
Air flow rate: 8L/MIN
Sealing method: End face sealing
The air permeability diameter of the sample is 25MM
The range of the differential pressure sensor is 0 to 500PA
The display mode shows the pressure digitally
Power supply: AC220V, 50HZ
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