willie
Member
Hello all;
I am trying to design a pressure tester with RSLogix 500 to detect a air pressure leak in metal tubing. The leak rate cannot be more than 100th of a psi per 4 seconds at a pressured chamber of 60, 40 and 100psi. The metal tubing will be manually sealed at both ends of tube using some type of destako clamping system. The metal tubing is 1/4, 5/16, 3/8 and up to 1 1/2 inches in OD at varied wall thicknesses. Tubing has copper brazed fittings on both ends and different brackets brazed on also. I realize fill timing would be different for diameter size and stabilization time would be criticle as well. Some of the tubing would be used for fuel lines so it is esential not to have any leakage. The system we have tried using has a SLC 500 using a pressure transducer but when you get down to trying to detect 100th of a psi droppage it is not consistent. Can this be done without using transducers? It has to be idiot proof.
Thanks ya'all;
Willie
I am trying to design a pressure tester with RSLogix 500 to detect a air pressure leak in metal tubing. The leak rate cannot be more than 100th of a psi per 4 seconds at a pressured chamber of 60, 40 and 100psi. The metal tubing will be manually sealed at both ends of tube using some type of destako clamping system. The metal tubing is 1/4, 5/16, 3/8 and up to 1 1/2 inches in OD at varied wall thicknesses. Tubing has copper brazed fittings on both ends and different brackets brazed on also. I realize fill timing would be different for diameter size and stabilization time would be criticle as well. Some of the tubing would be used for fuel lines so it is esential not to have any leakage. The system we have tried using has a SLC 500 using a pressure transducer but when you get down to trying to detect 100th of a psi droppage it is not consistent. Can this be done without using transducers? It has to be idiot proof.
Thanks ya'all;
Willie