Cirris CH2 tester

AC Hipot Testing

Hipot testing involves using a high potential (voltage) to test insulation. A hipot test can be very useful in helping you develop a process that builds high quality cables and wire harnesses. There are two popular hipot voltage sources: DC and AC. This article introduces some of the concepts you’ll find in AC hipot testing.…

shielded cable assembly

Testing Shielded Cable Assemblies

Why do cables have shields? To prevent signals in cables from radiating and causing interference. To prevent outside signals from affecting signals inside the cable. To maintain controlled impedance so that fast-changing signals can travel long distances without electrical “echos.” Testing Recommendations Shielded cable assemblies have an increased chance of defects in the manufacturing process.…

Metal whiskers

Metal Whiskers; how to avoid them

Metal Whiskers can cause severe damage to electronic and electrical devices and leave complete systems useless. They have been known to create failures in nuclear reactors, pacemakers, missiles and satellites and they may be threatening your devices. What are these tiny things that can cause so much destruction? Metal whiskers are tiny hair-like growths that…

Alarm boxes

What is the Test Process?

Many companies have an established process that they follow to ensure that all cables are tested correctly. Some parts of the test process are vital for safety reasons. How many of these things do you include in your test process? 1. Guided Assembly Instead of testing after the cable is finished, some test systems allow…

Counterfeit cables

Counterfeit Cables

Substandard and counterfeit cables, labelled with fake official standards and accreditations, is a growing problem in the UK. What are Counterfeit Cables? Manufacturers are purchasing wires and components they believe are legitimate only to realise later that the materials do not meet industry requirements. Sometimes the counterfeit parts have been passed off under a respected…

how to back up your tester

Testing Tips – Back Up Your Tester

With technology being so prevalent in our world today, there are very few people who haven’t lost data in some form or another. Whether dropping your phone in the toilet or losing information when a computer crashes, everyone has experienced the heartbreak of losing digital files. This article is your friendly reminder to back up…

Practical resistance specs

Practical resistance specifications

The IPC\WHMA-A-620 Rev A standard states that in the absence of agreement on test requirements between manufacturer and user the continuity spec for class 3 assemblies should be 2 ohms, or 1 ohm plus the actual resistance. We agree that this is a reasonable method for determining continuity test specs. However, when more stringent continuity…

Moving the testing process upstream

Moving Tests Upstream

By adding automated testing earlier throughout the build process, cable and harness manufacturers can find errors sooner; this saves time, money, and provides a competitive advantage. Rising expectations in the cable/harness industry demand that manufacturers build more complex assemblies in less time. Accomplishing this feat means manufacturers must re-evaluate their processes. How can shops produce…

tester calibration

Can you calibrate your own tester?

To get accurate results, your automated testing equipment must be calibrated. An uncalibrated machine can skew results and damage your company. With this in mind, how do you know if your tester is calibrated correctly? Start by purchasing a Cirris Performance Check Kit from Combined Test Solutions. This kit will tell you if your tester…