Functional Features
Features:
1. The instrument is composed of an air source that can adjust the
flow rate, a human head mold specified in the standard, two sets of
inhalation and exhalation pipeline systems, and a breathing
resistance measurement system.
2. The flow sensor has high sensitivity and a very small starting
flow.
3. The flow sensor chip adopts a thermal mass flowmeter, which does
not require temperature and pressure compensation, which ensures
the 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 flow sensor has high zero-point stability, high stability of
full scale, high accuracy and excellent repeatability of full
scale, and has the characteristics of low power consumption, low
pressure loss and fast response speed.
6. The data logger adopts a graphic dot matrix liquid crystal with
a resolution of 128×64, a full-Chinese interface, and is easy to
operate.
7. There is 4M memory in the data logger for recording measured
values.
8. The micromanometer sensor adopts a two-wire system, with high
precision and good stability; It adopts explosion-proof design,
safe and reliable to use.
9. The range of the micromanometer sensor and the zero point are
continuously adjustable externally, the damping is adjustable,
there is no mechanical movable part, and the maintenance workload
is less.
10. The whole instrument adopts a special air path conversion
element to ensure that the conversion of the two sets of pipeline
systems of exhalation and inhalation is convenient and fast.
Features: The mask respiratory resistance tester is used to measure
the inhalation resistance and expiratory resistance of respirators
and mask protective equipment under specified conditions. It is
applicable to the relevant testing and inspection of ordinary
masks, dust-proof masks, medical masks and anti-haze mask products
by national labor protection equipment inspection institutions and
mask manufacturers.
Main uses:
The mask respiratory resistance tester is used to measure the
inhalatory resistance and expiratory resistance of respirators and
masks under specified conditions. It is applicable to the relevant
testing and inspection of ordinary masks, dust-proof masks, medical
masks and anti-haze mask products by national labor protection
equipment inspection institutions and mask manufacturers.
Fields of application
It is used for the relevant testing and inspection of ordinary
masks, dustproof masks, medical masks, and anti-haze mask products
by national labor protection equipment inspection institutions and
mask manufacturers.
Mask ventilation resistance and pressure difference tester
Functional Features
Features:
1. The suction air source is used as the power source of the
instrument, which is not limited by the space of the test site;
2. Equipped with a high-precision differential pressure sensor,
which digitally displays the differential pressure on both sides of
the sample;
3. The special sample clamp ensures that the sample is firmly
clamped.
Fields of application
Medical device production, R&D, quality inspection departments
and institutions
Enforce the standard
YY 0469-2011,YY 0969-2013,EN 14683:2014
Technical index
Technical parameter
Air source suction type
Air flow 8L/MIN
Sealing mode Face seal
The breathable diameter of the sample shall be 25MM
Differential pressure sensor range 0 ~ 500PA
Display mode Digital display pressure
Power supply AC220V 50HZ
Product Introduction
The gas exchange pressure difference tester for medical masks and
the textile airflow resistance tester are suitable for the
determination of gas ventilation resistance and exchange pressure
difference of medical surgical masks, and can also be used to
determine the gas exchange pressure difference of other textile
materials.
