Contents
1．Safety warnings ……………………………………………………１
2．Features ……………………………………………………………４
3．Specification ………………………………………………………５
4．Instrument layout …………………………………………………９
5．Preparation for measurement ……………………………………10
5 − 1 Test lead connection ………………………………………10
5 − 2 Checks on Test lead and Fuse …………………………10
6．Measurement ……………………………………………………11
6 − 1 Voltage measurement(Mains disconnection check) …11
6 − 2 Insulation resistance measurement ……………………11
6 − 3 Continuous measurement ………………………………14
6 − 4 Output voltage characteristics ……………………………14
6 − 5 Measurement of resistance (Continuity check) ………15
6 − 6 Backlight function …………………………………………16
6 − 7 Auto-power-off ……………………………………………16
7. Functions keys ……………………………………………………17
7 − 1 Comparator function ………………………………………17
7 − 2 Memory (save) function …………………………………17
8．Fuse & Battery replacement ……………………………………18
8 − 1 Battery replacement ………………………………………18
8 − 2 Fuse replacement …………………………………………19
9．Notes on Housing case and accessories ………………………19
9 − 1 Case lid ……………………………………………………19
9 − 2 Neck strap and Cord case ……………………………20
9 − 3 Test prods and replacement …………………………20
9 − 4 Adaptors for the Earth cord and replacement …………20
10．Cleaning of the instrument ……………………………………21
11．Servicing …………………………………………………………21
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