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試験装置 Major tech MT500のPDF 取扱説明書をオンラインで閲覧またはダウンロードできます。Major tech MT500 8 ページ。 Analogue insulation tester

4. PARTS & CONTROLS

1. Point needle

2. Lock Button

3. 0-Adjust Button

4. Backlight Button

5. Test Button.

a) On MΩ Range: Connect the red test lead into the "VΩ" terminal

and the black lead into the "COM" terminal.

b) On3Ω/500Ω and ACV Range: Connect the red test lead into the

"VΩ" terminal and the black lead into terminal "COM"

6.1. Measurements at 200MΩ/500V

This is the voltage used for the majority of insulation resistance tests on

normal installation requirement. To measure insulation resistance, press

the test button to power on the tester. The point needle will displayed

the insulation resistance. Section VII indicated that subdivision of large

installations might be necessary because of the large number of parallel

insulation resistance. In such a case, an installation may be divided into

sections, each being separately tested. Each section must have not less

than fifty outlets, an outlet being a switch, socket, lighting point etc. A

switched socket counts as one outlet. The minimum acceptable

insulation resistance is 1MΩ. For a large installation, the capacitance of

6. Rotary Function switch

7. VΩ Jack

8. COM input jack

9. Pothook

10. Battery Cover