Hioki FT3151 - Page 64

ii
Contents
Battery check ............................................................36
Earth voltage check ..................................................37
Auxiliary earth resistance check ...............................37
Earth resistance measurement ................................. 37
2.4 Using the Earthing Net .................................38
2.5 Measurement Precautions and Tips ............ 40
How to insert / pull out the auxiliary earthing rods .... 42
3 Specications 45
3.1 General Specications .................................45
3.2 Basic Specications .....................................46
3.3 Measuring Range and Tolerances ...............48
4 Maintenance and Service 51
4.1 Repair, Check Up, Cleaning .........................51
Calibrations ............................................................... 51
Disposal ....................................................................51
4.2 Inserting/Replacing Batteries ......................52
4.3 Cleaning the Unit ...........................................55
4.4 Service ...........................................................55
4.5 Before Returning for Repair ......................... 56
Appendix Appx.1
Appx. 1 Earth resistance ................................Appx.1
Appx. 2 Measurement Principle ....................Appx.3