5.4.3 Mechanical Problems
Always use terminals, sockets or probes that are mechanically robust. Poor mechanical connections can affect the measurements, and hence your throughput and quality of product.
In use, clean the fixtures and connectors regularly, to avoid any build-up of dirt and transformer varnish. Dirty fixtures give poor contacts and poor insulation resistance between contacts, and could reduce the quality of your product.
Use a separate fixture for each type of wound component, as this can improve the testing throughput.
Design the fixture so that the connections to the component under test can be made quickly and easily. One example is to use guides to ensure that the component cannot be put on to the fixture the wrong way round.