User Manual
MG430
Digital Insulation Tester/Megohmeter
Introduction
Congratulations on your purchase of Triplett’s Digital Insulation Tester/Megohmmeter. The MG430
provides three test ranges plus continuity and AC/DC voltage measurement. A handy test lock feature
and a data hold function are also included. This professional meter, with proper care, will provide
years of reliable service.
Safety
•
Circuits under test must be de-energized and isolated before connections are made (except for
voltage measurements).
•
Circuit connections must not be touched during a test. Use extreme caution when working near
bare conductors and bus bars. Accidental contact with conductors could result in electrical
shock.
•
Use caution when working near voltages above 60VDC or 30VACrms.
•
After insulation tests, capacitors must be discharged.
•
Test leads (including alligator clips) must be in good working order, clean and without broken
or cracked insulation.
•
When servicing, use only specified replacement parts.
International Safety Symbols
Caution, refer to this manual before using this meter
Dangerous Voltages
Meter is protected throughout by double or reinforced insulation
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