PFE instrument for measuring the filtration efficiency of particles in the melt blown cloth of respirator

Technical proposal

Model:JH-BFE-1000

Application：

Applied to performance test of the bacterial filtration efficiency of surgical masks by the metrological verification department, scientific research institutes, mask manufacturers and other relevant departments. 

 Standards:

YY0469-2011 < Medical grade surgical face mask>  Fig. B.1 and Fig. B.2 in Appendix B

Features:

1. Negative pressure test system to ensure the safety of operators;

2. Built - in peristaltic pump in the negative pressure cabinet, A, B, four Andersen;

3. The peristaltic pump flow can be set;

4. The flow rate of night spray of special microorganism aerosol generator can be set;

5. Good atomize effect;

6. Embedded high-speed industrial microcomputer control;

7. 10.4 inch industrial high brightness color touch screen;

8. USB interface, support U disk data storage;

9. Cabinet built-in high brightness lights;

10. Front opening and closing glass door, convenient for experimenters to observe and operate;

 

Specifications:

 

Main Specifications	Parameter range	Resolution	Accuracy
A Sampling Flow	28.3L/min	0.1L/min	±2.5%
B Sampling Flow	28.3L/min	0.1L/min	±2.5%
Spray Flow	(8～10)L/min	0.1L/min	±2.5%
Peristatic Pump Flow	(0.006～3.0)ml/min	0.001ml/min	±2.5%
A Road Flow Meter	(-20～0)KPa	0.01KPa	±2.5%
B Road Flow Meter	(-20～0)KPa	0.01KPa	±2.5%
Pressure Before Spray Flowmeter	(0～300)KPa	0.1KPa	±2.5%
Environmental Temperature	(-40～99)℃	0.1℃	±2.5%
Negative Pressure In Aerosol Chamber	(-90～-120)Pa	0.1Pa	±2.0%
Negative Pressure Of Cabinet	-50～-200Pa
Data Storage Capacity	>100000 Groups
Vortex Mixer Test Tube Specification and Quantity	Φ16×150 mm test tubes, Eight
Characteristics of High Efficiency Air Filter	The filtration efficiency of particles above 0.3 um ≥99.99%
Median Mass Diameter Of Aerosol Generator	3.0± 0.3μm,Geometric standard deviation ≤1.5
Double Route 4 Andersen	Level I >7μm,Ⅱ4.7-7μm, Level Ⅲ 3.3-4.7μm,Level Ⅳ 2.1-3.3μm, Level Ⅴ 1.1-2.1μm,Level Ⅵ 0.6-1.1μm
Aerosol Chamber Size(L*D*T)	600*85*30mm
Total Particles of Positive Quality Control Sampler	2200±500cfu
Ventilation flow of negative pressure cabinet	≥5m3/min
Negative Cabinet Door Size(W*D)	1000×730mm
Mainframe Size(W*D*H)	1180×650×1300mm
Support Dimensions(W*D*H)	1180×650×600mm,Adjustable height within 10 cm
Instrument Noise	<65dB(A)
Weight	About 150kg
Power Supply	AC220V±10%,50Hz
Power Dissipation	<1500W

 

Refer to the picture, the material object shall prevail!

 

 

 

 after-sale service:
Shanghai Jianhu instrument and Equipment Co., Ltd. makes the following commitments and strictly abides by the after-sales service plan, including service content, form, time, response time to solve quality or operation problems, time to solve problems, quality assurance measures, etc
1. From the date of sale, our company guarantees all kinds of environmental testing machines for 12 months. The actual warranty period shall be subject to the contract. The warranty period of some instruments can be free of charge for 36 months.
2. Customers can choose to extend the warranty service beyond the warranty period of equipment standard, and increase a certain amount of extended premium can make the instrument long enjoy 5 years of free warranty. Remove 100% of after-sales worries.
3. During the warranty period, in case of equipment quality problems, our company is responsible for free maintenance and replacement of parts, without any cost to the customer, except for the damage caused by human factors and force majeure.
4. The service phone immediately responded, and Jiangsu, Zhejiang and Shanghai regions returned the solution within two hours, and the solution within 12 hours. Other remote areas in the field will report the solution within two hours and reply the solution within 48 hours.
5. The after-sales customer service department shall regularly sample the telephone return visits of regular customers to understand the use of customers and the operation of the machine.
6. If customers need, they can make an appointment with the technical engineer of Jianhu to provide on-site services (including machine maintenance, technical explanation, on-site guidance, etc.) from time to time every six months.
7. Our company's technical consultant answers the customer's questions about technology and standards and provides technical guidance at any time, and explains and analyzes the test methods of the equipment.
9. After the warranty period, the whole machine will be guaranteed for life, and the equipment will be provided with paid service. The maintenance cost is low, and the maintenance will be free after maintenance.
10. In order to solve the after-sales problems of the products more conveniently and quickly, our company has offices and maintenance points in Beijing, Tianjin, Northeast China, Dongguan, Wuhan, Shanghai, Xi'an, Nanjing, etc