Testing for Intermittent Errors in Cable and Harness Assemblies
Testing for Intermittent Errors in Cable and Harness Assemblies Just because a cable has tested good does not mean that it is definitely a good cable. This article will discuss…
Connector Pin Counting Sequence
Connector Pin Counting Sequence Alternating count, or sometimes called Staggered count. This is a very typical counting pattern for dual row headers of all kinds. The different families of Cirris adapters…
Functional Testing
Functional Testing This article should help you understand functional testing, how to apply it correctly, and issues to consider when choosing a tester with functional test capability. Functional Testing Defined…
Does repeating the Hipot test damage your cable?
Does repeating the Hipot test damage your cable? Cirris cable hipot testers are designed to limit the current and the charge that is applied during the hipot test. * Consequently,…
Connector Contact Retention
Connector Contact Retention A key problem with wire harness assemblies constructed with crimp and poke style terminations is contact retention failures or terminal “push back.” Of primary concern are those…
Common Causes and Solutions of Testing Errors
Common Causes and Solutions of Testing Errors Finding the causes of errors then implementing the correct solution can be a confusing task. There are so many reasons an error can…
Temperature Coefficient of Copper
Temperature Coefficient of Resistance for Copper The Temperature Coefficient of Resistance for Copper (near room temperature) is 0.393% per degree Celsius (C) meaning that for every 1°C rise in temperature,…
Setting Practical Resistance Specs for Continuity Testing
Setting Practical Resistance Specs for Continuity Testing The IPC\WHMA-A-620 Rev A standard states ..."in the absence of agreed on test requirements between manufacturer and user the continuity spec for class 3…
Dry Circuit Testing
Dry Circuit Testing Have you ever been asked to perform a Dry Circuit Test? You might respond that dry circuit testing is not a part of the IPC/WHMA-620 test requirements.…
Can I Test For Broken Strands?
Can I Test For Broken Strands? Over the years, numerous Cirris customers have asked us if there was a way to detect broken strands in their cables by using standard…
