Features Of Cable Testers

by Michelle Paige | 2nd April 2011

The specialty of cable testers comes out in the unique way they serve us and help us in our lives. Cable testers operate in a way wherein they are capable of analyzing the electronic linkages in a cable or wired assemblages. Three major parts are responsible for the wonderful results which are expected from this machine. Source of electric current, volt meter and the switching matrix are the major parts which make up this device. Out of the three parts, the switching matrix is the connecting part between the current source and the volt meter and this in turn links to the points of contact on the cable assemblage.

A cable tester also includes various other vital parts such as the automated testing system and the microcontrollers. Automation is a key factor in most of the electronic devices and thus helps us to properly understand the end-result of the testing process.

The primary use of cable testers is to observe whether the instrument or unit which is undergoing observation only has intended or deserved connections. The cable tester helps us to estimate if there are unintended connections in the instrument under observation and if such connections are thoroughly undesirable.

There are two main scenarios which exist while testing a cable assembly. If there are any wanted connections which are missing in the system then we refer to this case as the ‘Open Circuit’. On the other hand, if an unintended connection is detected in the assemblage, that case is named as ‘Short Circuit’. Also, in case, there is a wrong connection in the entire assemblage, then the same is named as ‘miswired’ connection.

The conclusion made from the testing done by the cable tester is through the results of two tests, first one being the Opens test which helps us in knowing whether all the wanted connections are present in the cable circuit and the second one is the Shorts test which checks to see if there are no unwanted or unintended connections in the circuit.

Usually, there are two common ways in which the testing of a connection is confirmed. One of them is called the continuity test wherein we check the connection by allowing current to pass through it. If the testing detects current then the result of the test is positive. Mostly, this kind of test is carried out with a series of batteries and a light bulb.

Then, we have the resistance test, wherein the voltage produced at the end of the testing by passing a current through the system is measured and from these measurements the resistance is calculated and if the resistance is in the expected level, then the test is supposed to be a positive.

High voltage test and low voltage test helps us to determine the short circuit in the system. In general, all can be said about cable testers is that they are an amazing and useful device in our daily lives.

The author is focused on workplace tools and Do-it-yourself, fields where he has been busy for quite a few years. Items like cable testers, also identified as Kabelsuchgeraet or Metallsuchgeraet in German, are amid his most desired gear which he frequently recommends to his customers.

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