The respirator resistance tester is used to measure the inhalation and exhalation resistance of a mask under specified conditions. It is suitable for face mask manufacturers and national labor protection equipment inspection institutions to carry out relevant inspection and inspection of face mask products

Technical characteristics

High definition LCD;

Electronic flowmeter, high precision of flow control;

Automatic constant current control, automatic sample qualification judgment;

Two modes of breath detection and inspiration detection can be set.

Large capacity data storage, real-time storage of detection data;

Historical data can be exported by usb flash drive or printed by thermal printer;

Parameters such as pressure difference and sample number can be set.

Automatic fault detection protection

Applicable to the national labor protection products inspection institutions, mask manufacturers to ordinary masks, dust masks, medical masks, anti-haze masks related testing and inspection

Technical indicators

Main parameters range resolution accuracy

The test flow rate (85±1)L/min was 0.1l /min better than ±2.5%

Pressure range ±1500Pa 0.1Pa is better than 1%

Data store 500 groups

Overall dimension (W×D×H) (335×280×255)mm

The weight of the whole machine is about 11kg

Power consumption of the whole machine is 80w

Breathing-valve airtightness detector and breathing-resistance machine meet the standard:

Self-priming filter particulate respirator 6.56.6

GB/T 32610-2016 technical specification for daily protective masks

1. The instrument is composed of breathing air source which can adjust the flow rate, head mold of human body stipulated in the standard, inhalation and exhalation pipeline system, respiratory resistance measurement system and so on. 2. Special air circuit conversion element ensures convenient and quick replacement of the two casing circuit system of exhalation and inspiration. 3, digital display of respiratory resistance, with zero correction, accuracy correction and beyond the range of alarm function. 4, the use of electronic flowmeter, flow control precision is high.

Breathing valve air tightness detector, breathing resistance machine equipment principle: breathing valve air tightness detector, breathing resistance machine is mainly composed of test head mold and breathing pipe, pressure pipe, differential pressure sensor, flow meter, regulating valve, three-way valve, vacuum pump and air compressor.

Technical indicators:

1. The instrument consists of an air source that can regulate the flow rate, a standard human head mold, a double casing system for inhalation and exhalation, and a respiratory resistance measurement system.

2. High sensitivity of flow sensor, with minimal starting flow.

3. The flow sensor chip adopts thermal mass flowmeter, which does not need temperature and pressure compensation, ensuring the high-precision measurement of the sensor. The measuring range of the flowmeter is 0L/min ~ 100L/min, and the accuracy is ±2%.

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

5. The flow sensor has high zero point stability, full range high stability, full range high accuracy and excellent repeatability, low power consumption, low voltage loss and fast response speed.

6. The data recorder adopts a 128×64 resolution graphics lattice liquid crystal, with an all-chinese interface and easy operation.

7. The data recorder has 4M memory for measuring value recording.

8, micro pressure gauge sensor adopts two-wire system, high precision, good stability; The explosion-proof design is safe and reliable.

9. Measuring range of microgauge sensor and zero point external continuously adjustable, damping adjustable, no mechanical moving part, less maintenance workload. The microgauge ranges from -1000pa to 1000Pa with an accuracy of 1Pa.

10. The whole instrument adopts special gas circuit conversion element, which ensures the convenient and fast conversion of the two casing circuit system of exhalation and inspiration.

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

12. The ventilation volume is constant at (85±1)L/min

13. Power supply: AC220V, 50Hz

14. Applicable to national standards, compatible with labor protection mask and daily protective mask standards