Large elliptical clamp design. Smooth mating surfaces on the clamp head.
The DET14C is an advanced clamp-on ground
resistance tester that sets new standards in terms of
access, performance, features, simplicity of operation and
safety. The DET14C 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 DET14C 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.
Large elliptical clamp (head) design
Smooth mating surfaces on the clamp head
CATIV 600 V operation
Noise filter function
Resistance and current limit alarm functions (visual and audible)
Intelligent data hold function (preset before testing)
Time and date stamped results
New ergonomic trigger design
Ultra long battery life (24 hours continuous) with readily available batteries
|Ground Resistance Range||Resolution||Intrinsic Certainty|
|0.05 Ω to 0.99 Ω||0.01 Ω||±1.5% ±0.05 Ω|
|1.00 Ω to 9.99 Ω||0.01 Ω||±1.5% ± 0.1Ω|
|10.0 Ω to 99.9 Ω||0.1 Ω||±2% ± 0.5 Ω|
|100.0 Ω to 199.9 Ω||0.1 Ω||±5% ± 1 Ω|
|200 Ω to 400 Ω||1 Ω||±6% ± 5 Ω|
|400 Ω to 600 Ω||1 Ω||±10% ± 10 Ω|
|600 Ω to 1200 Ω||10 Ω||±20%|
|1200 Ω to 1500 Ω||10 Ω||±35%|
|Frequency of measurement 1390 Hz.|