Analysis of common textile breathability tester faults

Textile breathability tester is a special instrument to test the breathability of fabric, the international popular breathalyser on the flow of the test unit has three ways: hole plate type, round nozzle type, flow meter method.
, the domestic way is the first two.
are required in GB/T2624 and ISO5167.
method of using flow meters because the test range is very small and there are not many users.
breathability meter uses a high-precision pressure sensor to test the pressure difference between the two sides of the sample, calculates the flow size by a single-chip machine, and can realistic breathability and breathability.
in many products, breathability testing is a hard indicator, such as GB/T 5453-1997, ISO 9237-1995, GOST ISO 9237-2013, GB/T Standards such as 10655-2003, QB/T 2799-2006, ISO 4638-1984, ANDTM D737-2004 (2016) have essentially the same breathability requirements.
test samples according to the standard, the test results of different instruments are different, what is the reason?
say it was caused by a nozzle or a perforated plate, and cite a lot of data to try to justify it.
the discreteness of the sample itself, there are many reasons why the test results are different.
, the real reason is not the use of nozzles or hole plates.
testing method, the immediate key factor is the traceability of the original data.
many people often use the textile breathalyser, but the general user, the original data of the breathalyser is how it is, often in the clouds.
data deviation, often in the mechanical design of the instrument to find reasons, this is precisely the performance of the outsider.
a complete breathable meter with at least a thousand raw test data behind each test plate or nozzle, combined with different test plates and a large amount of test data, often tens of thousands.
these accurate data, the test nozzle or hole plate data revision, that is, the more accurate the original data, the smaller the deviation of the test results.
, whether using imported instruments or domestic instruments, whether nozzle or plate design, the original data is sufficient and accurate, in accordance with the standard test conditions, will obtain good experimental data.
in order to verify the difference between the hole plate and nozzle-type experimental results, the Interstrate Technology Research and Development Center has developed two different breathable meters for scientific comparator experiments.
the revision of the original data of nozzle type and perforated plate type, the linear test results are obtained.
the difference is the hole plate design, the use of card replacement, test efficiency than nozzle-type greatly improved, the same working time, hole-type work efficiency is at least 3 times the nozzle-type, it can be seen that the breathable meter selected nozzle and hole plate-type, do not consider the test efficiency and working intensity and other reasons, the two ways are feasible, the specific use of which way, depending on the user's habits.
N900 textile breathability tester in addition, laboratory conventional instruments and equipment in the process of scientific research and testing played an important role in promoting the innovation and development of science and technology.
without the maintenance and maintenance of instruments and equipment, no scientific research and testing work can be carried out smoothly.
, the general textile laboratory needs to be equipped with professional conventional equipment maintenance staff, and enhance their sense of service.
1: When the power switch is switched on, the device does not have any display and neither the screen or the power display light is on.
possible cause: power problem, check the supplied power supply.
possible cause: a bad fuse.
To check or replace the fuse, unplug the power plug of the instrument, open the fuse knob cover, you can remove the fuse, if you need to replace the fuse, use the same rated current fuse.
fault 2: if the error range is too poor in the check confirmation and the leak check.
(1) is connected to the power and gas sources and enters the test interface.
(2) according to the Factory Check Data Sheet, install the correction board and the corresponding number of nozzles.
(3) click on "Settings" to set the test pressure difference, sample area, nozzle number and test unit, etc., return to the test interface, click on "Run", the experiment automatically stop, according to breathability to determine whether to carry out the "correction" system.
is not consistent, click on the lower left corner to enter the password 8888, enter the test results correction system, according to the "factory check data sheet" fill in the corresponding test results, save exit.
(4) air leakage check: when the no-hole plate through the "acceleration" "deceleration" to adjust the fan speed, so that the pressure difference of 100Pa, breathability test results less than 5mm/s for normal, the instrument sealing is good.
3: Press the button and the instrument is unresponsive.
possible cause: the button is bad.
General fabric breathability meter routine glitches our laboratory staff can basically solve, if encountered with procedures and other problems, we must contact the manufacturer's professional engineers to solve, must not be removed privately, so as not to cause greater losses.