1、The air pressure tester is stainless steel hollow needle, it is will be bended under improper use. Therefore, when the air pressure tester is inserted into the film material, it must be in the axial direction insert, do not shake left and right, so as not to break down the needle.
2、When the ambient temperature is below 15℃, the film material is hard and inconvenient to insert. At this point, hand hot air gun can be used to soft the membrane material, and then insert needle to test.
3、The insertion depth of the air pressure tester depends on the length of the welding seams and the leak detection time. If the detection time is longer, the needle can be slowly proelled, to ensure the tightness between needle and membrane material, it can prevent leakage at the eye of the needle, and ensure the smooth completion of the detection work.
4、Please make sure that the testing needle and the air pump are in good connection. The pump clamp needs insert to the the soft air tube. Press down the black lock, and then clamp the needle valve to the inflatable mouth ( similar as bike inflatable).
5、Please determine the testing needle before the seams testing. Please use your finger to suppress the pinhole without any leakage, and then fill in it with certain air. It is in good condition if the pressure gauge pointer keeps at the same position after a minutes.
6、Please filled the pressurized air in the testing cavity, if the pressure gauge pointer doesn’t move for a certain time, the welding seams quality is reliable.