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1662/1663/1664 FC
Users Manual
ii
Applications ............................................................................... 57
How to Test a Mains Socket and Ring Installation ................. 57
Earth Resistance Test by Loop Method ................................. 58
Zmax ...................................................................................... 59
Auto Start ............................................................................... 60
Loop Impedance Test with 10 mA RCD ................................. 60
Auto Test Sequence (1664 FC) .............................................. 61
Memory Mode ............................................................................ 63
Store a Measurement ............................................................. 65
Recall a Measurement ........................................................... 65
Clear Memory ......................................................................... 66
Memory Error Message .......................................................... 66
Download Test Results .............................................................. 67
Fluke Connect Wireless System ................................................ 68
Maintenance .............................................................................. 69
How to Test the Fuse ............................................................. 70
How to Test the Battery .......................................................... 70
Battery Replacement .............................................................. 70
Specifications ............................................................................. 73
General Specifications ........................................................... 73
Maximum Display Values ....................................................... 75
Electrical Measurement Specifications ................................... 80
Operating Ranges and Uncertainties per EN 61557 .............. 88
Operating Uncertainties per EN 61557 ................................... 89
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