EN13274-3-2019 Determination of Breathing Resistance Static Testing Device
AT907 Series Breathing Resistance Tester is used to measure the resistance of breathing resistance (including inhalation resistance and exhalation resistance) of various respiratory protective devices and respirators on the specific conditions.

Standards | ||||||
EN143 | GB2626-200 | GB 262, GB/T 32610, GB/T 19083 | BS/EN 13274-3, EN 149 | |||



* High-precision pressure difference sensor and digital flow-meter, ensuring high accuracy.
* Air source adopts regulated blower for AT907A and breathing simulator for AT907B.

* Core controlling parts 32-bit multifunctional main board (Italy).
* 3D standard dummy head to simulate the actual expiration and inspiration, enhancing the accuracy of test data.
* Automatic recording test data after test and sound hint at test end.
* The dummy head can move in 5 direction to meet the request of EN 143 & EN149.
* Floor-type, stable running and low noise.
Model No. | AT907A | AT907B | |
Test method | Static breathing resistance | Dynamic breathing resistance | |
Air source | Regulated blower | Breathing simulator | |
Breathing frequency of breathing simulator | --- | (5~30)times/min | |
Error of breathing frequency | --- | ±0.3times/min | |
Flow range | (20~180)L/min±2% | --- | |
Tidal volume of breathing simulator | --- | (0.5~2.5)L±0.1L | |
Measuring range of digital pressure difference | -1000Pa~1000Pa | ||
Pressure accuracy | 1Pa | ||
Sucking rate of sucking pump | ≥100L/min | --- | |
Display | Touch screen display | ||
Power supply | AC220V 50Hz, 650W | ||
Dimensions | 550×360×620mm (W×D×H) | 1000×660×1200mm (W×D×H) | |





History
Since 1982 with more than 20 years' experience

Warranty
Two Year Warranty for whole product

Training
Video and user manual for training

Onsite service
Installation and training service is available

Testing service
Free sample testing before order is available

Lead time
15 working days lead time for most product

Lily Cheng | ||
Website | ||
Mobile Phone | +86 180 5517 3820 | |
Whatsapp | +86 180 5517 3820 | |
Skype | 1933039910@qq.com | |
Wechat | +86 180 5517 3820 | |
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