Mask pressure difference tester

Scope of application:

It can be used to measure the gas exchange pressure difference of medical surgical masks and other textile materials. It is used to measure ventilation resistance and pressure difference of mask under specified conditions. It is applicable to the inspection of medical respirators under the conditions of inspection and inspection of medical respirators.

It is applicable to the relevant testing and inspection of medical surgical masks and disposable medical masks conducted by * labor protection articles inspection institutions and mask manufacturers.

Applicable standards:

Yy0469-2011 medical surgical mask,

Yy0969-2013 disposable medical masks.

GB 19083-2010 technical requirements for medical protective masks.

GB 2626-2006 respiratory protective equipment self priming filter type particulate matter respirator.

GB / T 32610-2016 technical specification for daily protective masks.

Technical indicators:

1. Air source: suction type;

2. Air flow: 8L / min; resolution: 0.1l/min

3. Sealing mode: O-ring seal;

4. Sample air permeability diameter: Ф 25mm;

5. Range of differential pressure sensor: 10 ~ 500pa; pressure resolution: 0.1pA

6. Accuracy: ± 2%

7. Display mode: large touch screen display;

8. Power supply: 220 V, 50 Hz.

Features of the instrument:

A. 7 "color touch screen, programmable touch screen, easy to operate, accurate display of pressure difference between two sides of the sample.

B. the instrument adopts the suction type, and the air source with automatic flow regulation is used as the power source of the instrument, which is not limited by the space of the test site.

C. high precision flow sensor, without force compensation, ensures the accuracy of test results.

D. flow sensor has high zero point stability, high stability in full range, excellent repeatability, low power consumption, low voltage loss and fast response.

E. micro manometer sensor adopts two-wire system, with high precision and good stability; it adopts explosion-proof design, which is safe and reliable.

F. micro manometer sensor range, zero point external continuous adjustable, damping adjustable, no mechanical movable parts, less maintenance work.

G. the whole instrument adopts a special air circuit conversion element, which ensures the convenient and fast conversion of the two sets of expiratory and inspiratory pipeline systems.

H. equipment is equipped with micro printer, which can print test results in time.

I. applicable to the most standard requirements, compatible with labor protection mask and daily protective mask standards.

J. new touch screen interface design, intuitive operation interface, bring great improvement of operation experience.

K · equipment has powerful data storage function.

L. micro printer is convenient for data output.

M. overload protection, power down memory and other intelligent configuration, effectively ensure the user's operation safety.

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