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GBN702

Product catalog summary

Application
The respiratory resistance tester is designed to measure the inhalation and exhalation resistance of respirators and mask protective products under specified conditions. It is used for testing and inspection by manufacturers and national labor protection article inspection agencies.

Technical Parameters

Standards: GB2626-2006, GB/T32610-2016
Flowmeter Range: 0 L/min to 100 L/min
Micromanometer Accuracy: ±2%
Pumping Capacity: Not less than 100 L/min
Ventilation Constant: (85 ± 1) L/min
Micro-pressure Measuring Range: -1000Pa to 1000Pa
Power Supply: AC220V, 50Hz

Features

The instrument includes an adjustable air source, a human head mold, and systems for inhalation and exhalation measurement.
High sensitivity flow sensor with a thermal mass flow meter for precise measurement without temperature and pressure compensation.
Integrated multiple sensors on a single chip for improved range ratio.
High zero point stability and full range accuracy with low power consumption and fast response.
Data logger with a graphic dot matrix LCD and 4M memory for easy operation and recording.
Micromanometer sensor with high accuracy, stability, and explosion-proof design.
Adjustable range and zero point for micromanometer sensor with minimal maintenance.
Special gas path conversion elements for easy conversion between exhalation and inhalation systems.
Compatible with the latest national standards for protective masks.

Contact Information
Address: NO.1 Minghua 3 Street, Jinxiu Road, Economic Development Zone, Guangzhou, China
Tel: 86-20-86153790, 86-20-86153742
Fax: 86-20-82087405
Website: https://www.gbpitester.com
Email: [email protected]

Catalog excerpts

Technical Parameters Technical Parameters 0 L/min~100L/mm ±2% -1000Pa~1000Pa 1Pa Not less than 100L / min Constant (85 ± 1) L / min AC220V,50Hz Item Flowmeter range Flowmeter range accuracy Micro-pressure measuring range Micromanometer accuracy Pumping capacity of suction Ventilation Power Supply 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. 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 x 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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