4.7 Continuity Measurement ..............................................................31
4.8 Soil Resistivity Measurements .....................................................32
4.9
Soil Resistivity Measurement Procedure (4-Point) ................................33
4.10 Multiple Electrode System ...........................................................36
5. MAINTENANCE
....................................................................38
5.1 Warning ....................................................................................... 38
5.2 Power Supply ............................................................................... 38
5.2.1 TestingBatteryVoltage ....................................................38
5.2.2 Average Operating Time ..................................................38
5.2.3 Recharging Built-In Battery .............................................39
5.2.4 PowerSupplyfromExternalBattery ...............................39
5.2.5 Replacing Battery ............................................................39
5.2.6 ChangingtheSupplyVoltage(110/220VAC) ...................40
5.2.7 Replacing the Supply Fuse .............................................41
5.2.8 Replacing the Safety Fuse ..............................................41
5.3 Cleaning ....................................................................................... 42
5.4 Storage ........................................................................................42
Repair and Calibration
..........................................................................43
Technical and Sales Assistance
...........................................................43
Limited Warranty
...................................................................................44
Warranty Repairs
..................................................................................44