SONEL Insulation and Ground Testers for Utility and Field Work

Insulation resistance testing

MIC Series megohmmeters, from 1 kV handhelds to 15 kV

For cables, transformers, motors, generators and switchgear. The top of the range, the MIC-15k1, tests at 15 kV, the voltage ANSI/NETA ATS Table 100.1 calls for on equipment rated above 34.5 kV.

• MIC-15k1: 15 kV test voltage, measures up to 40 TΩ

• Guard terminal to cancel surface leakage on dirty insulation

• DAR, PI and dielectric discharge, plus step-voltage and ramp tests

• Built to work near energized lines up to 1200 kV AC and 800 kV DC

• MIC-10k1 and MIC-5050 for 10 kV and 5 kV work; MIC-30 and MIC-2511 for 1 kV to 2.5 kV jobs

• Bluetooth and the Sonel MIC Mobile app for live graphs and remote start

Read our guide to the MIC-5050, MIC-10k1 and MIC-2511

Ground and earth resistance testing

MRU Series earth testers

For substation ground grids, tower footings and service grounds. MRU testers cover the standard fall-of-potential method with auxiliary electrodes, clamp-on and two-clamp methods, and soil resistivity, depending on the model.

• MRU-200-GPS: GPS location tagging, Bluetooth and USB, IP54

• MRU-120 and MRU-200 for full-featured ground and soil resistivity work

• MRU-30 Pro and MRU-12 for everyday earth checks

• Kits with hard carrying cases and clamps available

Multi-function installation testing

MPI Series

One instrument for insulation, earth, loop impedance and continuity checks on low-voltage installations. The MPI-540-PV adds photovoltaic system testing for solar sites.