10A Micro-Ohmmeter with Kelvin Clips and Probes (Catalog # 2129.80)
The 10A Micro-Ohmmeter Model 6240 is a rugged, low resistance tester designed for both plant maintenance and field use. Utilizing a four-lead Kelvin method of testing, it accurately measures very low resistance within 0.25%.
Resistance measurements are automatically calculated from 1µΩ to 400Ω with resolutions down to 1µΩ. The Model 6240 has selectable test currents of 10A, 1A, 100mA, and 10mA and includes a polarity reversal function. It is designed to conduct tests on both resistive and inductive material and up to 99 measurements can be stored and printed directly to a printer or from a PC.
DataView (included) allows you to configure the instrument, temperature-compensate the test results, store data, and print reports.
The 6240 is packaged in a sealed field case well suited for shop and field use. Power is supplied by a long-life NiMH battery pack with a built-in recharger (110/220V). The large, easy-to-read liquid crystal display is 2.25 x 4.00". It displays the value of resistance, current or voltage test, polarity, and battery charge.
For operator safety and instrument protection, the micro-ohmmeter is fuse protected at the inputs. One fuse, accessible from the front panel, protects against stored energy in inductive loads. Enhanced internal circuitry protects against possible inductive kickback when the current is shut off. A built-in thermal switch protects the micro-ohmmeter against overheating on the 10A range when in continuous use.
Applications
- Bonding verification on earth/ground systems
- Weld joint integrity verification
- Contact resistance measurement of breakers and switchgear
- Aircraft and rail bonding checks