1
．
Safe testing ...................................................................................... 1
2
．
Procedure of removing cover ........................................................... 3
2
．
1
Method of removing the cover .................................................. 3
2
．
2
Method of storing the cover ...................................................... 3
3
．
Product summary and explanation ...................................................4
3
．
1
Product summary .................................................................... 4
3
．
2
Test range ............................................................................... 4
3
．
3
Features ................................................................................. 5
3
．
4
Instrument layout .................................................................... 5
3
．
5
Optional accessory ................................................................. 7
3
．
6
Explanation for indications and buzzer ................................... 8
3
．
6-1 DISPLAY ................................................................................. 8
3
．
6-2 LED for threshold value indication and buzzer ....................... 8
3
．
7
Applicable standards .............................................................. 8
4
．
Specification .................................................................................... 9
5
．
Preparation before a measurement ............................................... 11
5
．
1
Visual inspection ................................................................... 11
5
．
2
Connection to mains power supply ....................................... 11
5
．
2-1 Connection of mains cord ..................................................... 11
5
．
2-2 Check the mains power supply voltage ................................ 12
5
．
2-3 How to use M-7121 (Optional cord) ...................................... 12
5
．
2-4 NULL setting (Protective conductor resistance range) .......... 13
6
．
Connection for the instrument and the device under test .............. 14
7
．
Measuring method ......................................................................... 15
7
．
1
Measuring protective conductor resistance (RPE) ............... 15
7
．
2
Measuring insulation resistance (RINS) ............................... 16
7
．
3
Measuring equivalent leakage current (IEL) ......................... 17
7
．
4
Measuring contact current (IL) .............................................. 18
7
．
5
Measuring current consumption
………
Only for M-6202 ...... 19
8
．
Fuse replacement .......................................................................... 20
9
．
Services ......................................................................................... 21
10
．
Case and strap assembly ...............................................................21
CONTENTS
