When the megohmmeter is working, it generates high voltage, and the object of measurement is electrical equipment, so it must be used correctly, otherwise it will cause personal or equipment accidents. Before use, you must first make the following preparations:
- Program-controlled insulation withstand voltage tester MS2675P-Ⅰ/Ⅱ
- Insulation resistance tester MS2675D-Ⅱ
- Program-controlled withstand voltage tester MS2670P-Ⅱ
- DG8 megohmmeter/digital insulation resistance tester
- Digital Insulation Resistance Tester/Megohmmeter DG7
- Pointer Insulation Resistance Tester DM1008S
- DM508S Pointer Type Insulation Resistance Tester
- 10kV Insulation Resistance Tester MIT1020
- MIT1020/2 Insulation Resistance Tester
Digital Insulation Resistance Meter (Megohmmeter) CENTER360 - MIT510 5kV Insulation Resistance Tester
- PDM508S Pointer Insulation Resistance Tester
- DG6 Digital Insulation Resistance Tester
- MS2670P-I Programmable Hipot Tester
(1) Before measuring, the power supply of the device under test must be cut off and the device must be short-circuited to the ground for discharge. Never allow the device to be energized for measurement to ensure the safety of personnel and equipment.
(2) For devices that may induce high voltage electricity, this possibility must be eliminated before measurement can be carried out.
(3) The surface of the object under test must be clean to reduce contact resistance and ensure the accuracy of the measurement results.
(4) Before measuring, check whether the megohmmeter is in normal working condition, mainly check its "0" and "∞" points. That is, shake the handle to make the motor reach the rated speed. The megohmmeter should point to the "0" position when short-circuited and the "∞" position when open-circuited.
(5) When using the megohmmeter, it should be placed in a stable and firm place, away from large external current conductors and external magnetic fields.
After completing the above preparations, you can measure. When measuring, you must also pay attention to the correct wiring of the megohmmeter, otherwise it will cause unnecessary errors or even mistakes.
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