Laboratory Equipment 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.

Standard
GB2626-2006 GB/T32610-2016

Technical Parameters
Item : Technical Parameters
Flowmeter range : 0 L/min100L/min
Flowmeter range accuracy : 2%
Micro-pressure measuring range : -1000Pa1000Pa
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 A A A A 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

Guangzhou Biaoji Packaging Equipment Co., Ltd. is a high-tech service-oriented enterprise with independent intellectual property rights. The company specializes in R & D, production, sales and service of packaging testing instruments and software.

More than 10,000 enterprises and institutions in more than 40 countries and regions have provided the most competitive laboratory construction solutions. Services cover national quality inspection and drug inspection institutions, scientific research institutions, packaging, printing, food, medicine, daily chemical, chemical, new energy, new materials and other fields.

Service
1. Free technical support for packaging inspection
2. One year warranty for the instrument, free software upgrade service, free technical support for life
3. Free to come to the factory to train the instrument operation, the qualified person will issue a graduation certificate, and provide free room and board
4. Instrument for "old for new" policy, and to provide backup instrument use in case of failure
5. Set up a testing center (CNAS L8185) to provide customers with sample detection and sample data comparison services
6. Set up a reference material development center to provide customers with instrument calibration and calibration services