GBN702 Respiratory Resistance Tester
Application
The respiratory resistance tester is suitable for determining the inhalation resistance and exhalation resistance of respirators and mask protective products under specified conditions, and for the related testing and inspection of common mask products by manufacturers of national labor protection article inspection agencies.
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Standard
GB2626-2006,GB/T32610-2016
Technical Parameters
Features
1. The instrument consists of an air source that can adjust the flow rate, a human head mold specified in the standard, two intubation systems for inhalation and exhalation, and a respiratory resistance measurement system.
2. The flow sensor has high sensitivity and has a very small starting flow.
3. The flow sensor chip uses a thermal mass flow meter, which does not require temperature and pressure compensation, ensuring 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, with full range and high stability, high accuracy over the full range, excellent repeatability, low power consumption, low pressure loss and fast response speed.
6. The data logger uses a graphic dot matrix LCD with a resolution of 128 × 64 and a full Chinese interface, which is easy to operate.
7, the data logger has 4M memory for measurement value recording.
8. The micromanometer sensor uses a two-wire system, with high accuracy and good stability; it is safe and reliable to use an explosion-proof design.
9. The range and zero point of the micromanometer sensor are continuously adjustable, the damping is adjustable, there is no mechanical moving part, and the maintenance workload is small.
10. The whole instrument adopts special gas path conversion elements, which ensures the convenient and fast conversion of the two-pipe system of exhalation and inhalation.
11. Applicable to the latest national standard requirements, compatible with labor protection protective masks and daily protective mask standards
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GBPI is a professional manufacturer focused on developing and producing face mask and packaging material test instruments. Founded in 2002, the company has received IOS9001 certification and recongnized as high-tech enterprise and software enterprise by national authority. We hold numerous technology patents and software certificates from the national authority, and gained awards for technological progress.
Why Choose Us Contact Us?
1. Focus on testing instruments for 18 years
2. Global leading R&D technology and production scale
3. Over 50% of China's FDA uses our products
Our Customers
We are the lab solution provider for the face mask manufacturer, food, pharmaceutical, packaging,printing industries, research institution and college with qualified instruments and service.The machines are running well in over 3000 laboratories to guarantee the highest quality and save cost for customers.
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Trade Capabilities
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Our Factory & Lab
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Contact us
Leader of Testing Solutions
Factory Add:
No.1 Minghua 3 St. Jinxiu Rd., Economic Development Zone, Guangzhou, 510730 China
Office Add:
Room 305, Science building, Guangdong University of Technology, Higher mega education center, Panyu, Guanghzou, 510006 China
Application
The respiratory resistance tester is suitable for determining the inhalation resistance and exhalation resistance of respirators and mask protective products under specified conditions, and for the related testing and inspection of common mask products by manufacturers of national labor protection article inspection agencies.

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Standard
GB2626-2006,GB/T32610-2016
Technical Parameters
Item | Technical Parameters |
Flowmeter range | 0 L/min~100L/min |
Flowmeter range accuracy | ±2% |
Micro-pressure measuring range | -1000Pa~1000Pa |
Micromanometer accuracy | 1Pa |
Pumping capacity of suction pump | Not less than 100L / min |
Ventilation | Constant (85 ± 1) L / min |
Power Supply | AC220V,50Hz |
Features
1. The instrument consists of an air source that can adjust the flow rate, a human head mold specified in the standard, two intubation systems for inhalation and exhalation, and a respiratory resistance measurement system.
2. The flow sensor has high sensitivity and has a very small starting flow.
3. The flow sensor chip uses a thermal mass flow meter, which does not require temperature and pressure compensation, ensuring 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, with full range and high stability, high accuracy over the full range, excellent repeatability, low power consumption, low pressure loss and fast response speed.
6. The data logger uses a graphic dot matrix LCD with a resolution of 128 × 64 and a full Chinese interface, which is easy to operate.
7, the data logger has 4M memory for measurement value recording.
8. The micromanometer sensor uses a two-wire system, with high accuracy and good stability; it is safe and reliable to use an explosion-proof design.
9. The range and zero point of the micromanometer sensor are continuously adjustable, the damping is adjustable, there is no mechanical moving part, and the maintenance workload is small.
10. The whole instrument adopts special gas path conversion elements, which ensures the convenient and fast conversion of the two-pipe system of exhalation and inhalation.
11. Applicable to the latest national standard requirements, compatible with labor protection protective masks and daily protective mask standards


GBPI is a professional manufacturer focused on developing and producing face mask and packaging material test instruments. Founded in 2002, the company has received IOS9001 certification and recongnized as high-tech enterprise and software enterprise by national authority. We hold numerous technology patents and software certificates from the national authority, and gained awards for technological progress.
Why Choose Us Contact Us?
1. Focus on testing instruments for 18 years
2. Global leading R&D technology and production scale
3. Over 50% of China's FDA uses our products
Our Customers
We are the lab solution provider for the face mask manufacturer, food, pharmaceutical, packaging,printing industries, research institution and college with qualified instruments and service.The machines are running well in over 3000 laboratories to guarantee the highest quality and save cost for customers.

Trade Capabilities
Every year we participate in about 10 exhibitions around the world, and we will participate in about 15 in 2020
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Our Factory & Lab
With over 1000m2 laboratory and developing center and experts and technical team come from chemical, electronic, mechanical and software field at home and abroad.
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Contact us
Leader of Testing Solutions
Factory Add:
No.1 Minghua 3 St. Jinxiu Rd., Economic Development Zone, Guangzhou, 510730 China
Office Add:
Room 305, Science building, Guangdong University of Technology, Higher mega education center, Panyu, Guanghzou, 510006 China