Automatic fabric air permeability tester experimental debugging

Automatic fabric air permeability tester is an experimental equipment independently developed and produced by our standard group (Hong Kong) Co.
, Ltd.
, which is suitable for the detection
of a variety of textiles including technical fabrics, nonwovens, and other breathable products such as sponge and paper 。 Test principle: The pre-treated sample is placed between the upper and lower test chambers, clamped, first vacuum treatment of the low pressure cavity (lower cavity), and then the entire system is vacuumed, when the specified vacuum degree is reached, close the test lower chamber, fill the high pressure chamber (upper chamber) with a certain pressure of test gas, and ensure that a constant pressure difference (adjustable) is formed on both sides of the sample, so that the gas will penetrate from the high pressure side to the low pressure side under the action of the pressure difference gradient, through the monitoring of the pressure on the low pressure side, The barrier parameters
of the tested sample are thus obtained.
Experimental debugging: 1.
The instrument should be leveled before working, and the specific operation is to rotate and adjust the feet to make the instrument horizontal
.
2.
Check whether the sample value ring is tightened and whether its airtight ring is close to the two joint surfaces
.
3.
Check whether the indenter can control the indenter up and down
flexibly.
4.
Check whether the connection between the suction hose and the flow cylinder and the suction fan is tight
.
5.
Check whether the door cover and door lock on the flow cylinder can be tightly
closed.
6.
Check whether the printer is connected
correctly.
7.
Correction
.
8.
Check whether the instrument is leaking: use a non-perforated plate instead of the correction plate for testing, and the air permeability screen shows a value of 0 (allowed to jump below 10Pa) for no air leakage, otherwise some parts of the instrument leak air, should be checked and adjusted
。 Advantages: 1.
The company has been engaged in testing instruments for more than ten years and has a strong after-sales service team; 2.
Be able to deal with various problems in a timely and rapid manner, and relieve customers' worries; 3.
Complete spare parts to solve the trouble of long delivery time of ordered spare parts; 4.
Provide outsourcing maintenance services; 5.
Long-term supply of various commonly used testing instruments; 6.
Keep up with the update of industry standards and provide test instruments
that meet new standards in a timely manner.