test the "tester" machine? ...
... client & auditors ...
I’m just guessing , but I think that flyers is looking for something like a set of “must pass” and “must fail” tests for his PLC-controlled testing machinery ...
if the machinery performs a “pressure test” for some type of part, then he’ll probably have to provide a “KNOWN GOOD” sample part that can then be run through a test procedure - and must be marked “passed” by the testing machine ... even more important, he’ll probably have to provide another part which has a small but definite defect (maybe a small leak?) ... this “KNOWN BAD” sample part will then be run through a test procedure - and must be marked “failed” by the testing machine ...
if I’m right about what flyers is asking for, this is a very common procedure ... basic idea: the “client and his auditors” don’t want the PLC-controlled test machine to simply crank out one defective part after another simply because: (1) the test has been poorly designed ... or (2) the test machine is out of calibration ... or (3) something else along those lines ...
going further, if I’m right about the subject of the original post, then we need to know a lot more about the test machinery being used ... we can’t really tell how to design something until we know more about the specifications involved ...
plan of attack: consult the client’s specifications for the parts he’s buying ... once we’ve nailed down the precise range of tolerances which the customer considers to be “acceptable” - and which he considers to be “unacceptable” - then we can proceed from there ...
so ... did I come close, flyers? ...