The respiratory resistance tester is used to measure the inspiratory and expiratory resistance of respirators and medical protective equipment under specified conditions. Applicable to the relevant testing and inspection of ordinary medical, dust-proof, medical, and anti haze products by national labor protection equipment inspection agencies and manufacturers.

What are the uses of a respiratory resistance tester

The respiratory resistance tester/kouzhao respiratory resistance tester is suitable for testing and inspecting ordinary kouzhao, dust-proof kouzhao, medical kouzhao, and anti haze kouzhao products by national labor protection equipment inspection agencies and manufacturers. It is used to determine the inhalation resistance and exhalation resistance of respirators and kouzhao type protective equipment under specified conditions.

Technical parameters of respiratory resistance tester:

1. The instrument consists of a gas source that can adjust the flow rate, a standard human head mold, two sets of inhalation and exhalation piping systems, and a respiratory resistance measurement system.

2. The flow sensor has high sensitivity and minimal initial flow rate.

3. The flow sensor chip adopts a thermal mass flowmeter, which does not require temperature and pressure compensation, ensuring high-precision measurement of the sensor. The flow meter has a range of 0L/min to 100L/min and an accuracy of ± 2%.

4. Integrating multiple sensors on a single flow sensor chip greatly improves the range ratio of the sensors.

5. The zero stability of the flow sensor is high, with high stability across the entire range, excellent repeatability, low power consumption, low voltage loss, and fast response speed.

6. The data logger adopts a graphic dot matrix LCD with a resolution of 128 × 64 and a fully Chinese interface, making it easy to operate.

7. The data logger has 4M of memory for recording measurement values.

8. The micro pressure gauge sensor adopts a two-wire system, with high accuracy and good stability; Adopting explosion-proof design for safe and reliable use.

9. The range and zero point of the micro pressure gauge sensor are continuously adjustable externally, with adjustable damping and no mechanical movable parts, resulting in less maintenance workload. The range of the micro pressure gauge is -1000Pa to 1000Pa, with an accuracy of 1Pa.

10. The entire instrument adopts special gas path conversion components, ensuring convenient and fast conversion between the exhalation and inhalation pipeline systems.

11. The pumping capacity of the air pump shall not be less than 100L/min

12. The constant ventilation rate is (85 ± 1) L/min. The manufacturer conducts relevant tests and inspections on ordinary kouzhao, dust-proof kouzhao, medical kouzhao, and anti haze kouzhao products to determine the inspiratory and expiratory resistance of respirators and kouzhao protective equipment under specified conditions.

Technical parameters of respiratory resistance tester:

1. The instrument consists of a gas source that can adjust the flow rate, a standard human head mold, two sets of inhalation and exhalation piping systems, and a respiratory resistance measurement system.

2. The flow sensor has high sensitivity and minimal initial flow rate.

3. The flow sensor chip adopts a thermal mass flowmeter, which does not require temperature and pressure compensation, ensuring high-precision measurement of the sensor. The flow meter has a range of 0L/min to 100L/min and an accuracy of ± 2%.

4. Integrating multiple sensors on a single flow sensor chip greatly improves the range ratio of the sensors.

5. The zero stability of the flow sensor is high, with high stability across the entire range, excellent repeatability, low power consumption, low voltage loss, and fast response speed.

6. The data logger adopts a graphic dot matrix LCD with a resolution of 128 × 64 and a fully Chinese interface, making it easy to operate.

7. The data logger has 4M of memory for recording measurement values.

8. The micro pressure gauge sensor adopts a two-wire system, with high accuracy and good stability; Adopting explosion-proof design for safe and reliable use.

9. The range and zero point of the micro pressure gauge sensor are continuously adjustable externally, with adjustable damping and no mechanical movable parts, resulting in less maintenance workload. The range of the micro pressure gauge is -1000Pa to 1000Pa, with an accuracy of 1Pa.

10. The entire instrument adopts special gas path conversion components, ensuring convenient and fast conversion between the exhalation and inhalation pipeline systems.

11. The pumping capacity of the air pump shall not be less than 100L/min

12. The ventilation rate remains constant at (85 ± 1) L/min

13. Power supply: AC220V, 50Hz

14. Applicable national standard requirements, compatible with labor protection and daily protection standards

What are the applicable standards for respiratory resistance testers

GB2626-2006 Respiratory protective equipment - Self suction filtering particulate matter respirator

GB/T32610-2016 Technical Specification for Daily Protective Type Kouzhao