Large elliptical clamp design. Smooth mating surfaces on the clamp head.
The DET24C is an advanced clamp-on ground
resistance tester that sets new standards in terms of
access, performance, features, simplicity of operation and
safety. The DET24C is used to measure earth/
ground resistance in multiple loop installations without
disconnecting the ground.
Designed with flat core ends, these units prevent dirt build-up, ensuring measurement integrity and improved reliability over products with interlocking teeth. Other enhancements include safety to CATIV 600V, a built-in filter function for electrically noisy environments, time and date stamped stored test results and ultra long battery life. Megger has taken what is now a standard test method and significantly improved its field applicability.
The DET24C is designed to quickly measure ground electrode resistance in applications where this type of test method can be used and/or verify the integrity of ground connections. The goal of ground resistance testing is to ensure that the resistance ground electrode system is low enough to prevent or limit voltage rises caused by fault current, electrical surges, lightning strikes, etc.
Clamp-on ground testers work in applications where there is a loop resistance to measure with ground paths in the system (the more ground paths, the closer to the actual resistance). A utility pole ground system is a classic example of this type of application.
|Max. jaw opening||39 mm|
|Max. jaw inner dimensions||39 mm x 55 mm|
|Display type||4 + 6 digit with backlight|
|Battery type||4 x 1.5 V IEC LR6/AA alkaline|
|Auto power down||300 s (reset by jaw action or button press)|
|Data logging||2 k records|
|Data download||Opto-coupled IrDA-USB interface|
|Range selection||Range selection|
|Sample time||<1 seconds|
|Hold function||Yes with visual indicator|
|Alarm function||Yes with visual indicator|
|Operating temp./humidity||20 to +50 °C, <85% RH|
|Storage temp./humidity||-40 to +60 °C, <75% RH|
|Dimensions||248 mm (l) x 114 mm (w) x 49 mm (h)|
|IP rating||IP30 with jaws closed|
|Performance||IEC 61557-5, IEC 61557-13 Class 1|
|Safety||EN 61010-2-032, CATIV 600 V, Pollution degree 2|
|EMC||Class B Compliant, IEC 61326, BSEN 61326|