4. Operation Instructions........................................................................................................8
4.1 Testing the Earth Voltage...................................................................................................8
4.2 Testing the Earth Resistance by the bi-electrode method.................................................8
4.3 Testing the Earth Resistance by the tri-electrode method...............................................10
4.4 Data Storage ..................................................................................................................12
4.5 Data Reading..................................................................................................................12
4.6 REL Measurement.........................................................................................................13
4.8 Data Deletion..................................................................................................................13
4.9 Back Light.......................................................................................................................13
4.10 Auto Off........................................................................................................................13
5. Battery Replacement........................................................................................................14