The Metrohm E1622 Milliohm meter uses a four wire system to ensure accurate low resistance measurements. Applications fall into two main areas.
Firstly the testing of electrical bonding in areas as diverse as mines, aircrafts, ships, railways and domestic and industrial electrical installations.
Secondly the measurement of electrical resistance in areas such as the winding resistance of motors, generators and transformers. Other low resistance measurement applications include ring main continuity and the resistance of electronic components such as PCB tracks, switches and relays.