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Continuity tester CONTITEST® 505 (item no.: 0500)

A continuity tester can be used to quickly and reliably determine whether or not a component, lead or device can allow current to flow. Our continuity testers display continuity optically (LED) and acoustically (speaker). Whereby the acoutical signal is more important. The heard frequency spectrum is inversely proportional to the resistance to be tested. Large resistances cause low tones. Even if a connection only exists for a fraction of a second (as is often the case with broken leads having loose contacts), this is indicated directly. Varying junction resistances at switches and connectors can be indicated acoustically, without observing a needle or slow digital display.

Features of the CONTITEST® 505:

This continuity tester was designed specifically for electrical plant engineering. A resistance difference of 1 to 2 Ω can be heard clearly, due to its low-ohmic (0- to 100-Ω ) test range. A contactor coil can be clearly differentiated from a switching contact. A vital aspect of this low-ohmic test range is detecting low-ohmic junction resistances. At high power levels, these junction resistances can result in corresponding voltage drops, causing high temperatures at switching or plugging elements. Even layers of grease or dust on contact surfaces can be detected. The second test range from 0 to 10 kΩ is used to perform all other continuity tests in switchgear or electronic circuits.

All CONTITEST®-continuity testers can be used to test passive and active electronic components, such as capacitors, diodes, coils, transformers, rectifiers, transistors or even entire assemblies. A common testing method is comparison testing. This involves alternatingly testing a component known to be intact and a presumably defective one. This way, it is often possible to detect flaws such as interruptions, connections, swappings or burned-through PCB traces.

As usual, no responsibility is taken for the correctness of the details provided. The right is reserved to make technical modifications. For additional information, refer to the PDF document.
In order to view PDF documents, you need the free Adobe Reader, which you can download here. Symbol ADOBE Acrobat Reader


Elektronic development, sales & manufacture of testing equipment  |  TACO-NAUERT GmbH & Co. KG  |  Autenbachstr. 4  |  D-73035 Göppingen  |  Tel.: +49 (0) 7161 929423

+++ TACO-NAUERT GmbH & Co. KG +++ CONTITEST +++ TALK&TEST +++ Continuity testers with and without auxiliary features +++ Line sorters +++ Line detectors +++ Cable conductor testers with and without a headset +++ Test earphones +++ General-purpose test adapters +++ Accessories for cables +++ Experimental electronics kit for school students +++