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Voltage

Calibration Procedure For Major Megger Insulation Tester, Models 212159, 212160, 212359, 212459 And 212559 And Models Mj159, Mj359, Mj459, And Mj559 Page Navigation
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TB 9-6625-155-24
9. Resistance
a. Performance Check
(1) Connect TI positive (+) and negative (-) terminals to resistance standard no. 1.
(2) Set TI range switch Ω.
(3) Set resistance standard no.1 to the first applied value listed in table 4 below.
(4) Press and hold the TI TEST pushbutton (or hand crank, if applicable). TI will
indicate within limits specified in appropriate row of table 4 below.
(5) Release TI TEST pushbutton.
(6) Repeat steps (1) through (5) above for remaining TI and resistance standard(s)
settings as indicated in table 4 below.
Table 4. Resistance
Resistance standard(#)
TI meter indications (Ω)
TI range position
Applied Ω
(1) 1 kΩ
Ω
1 kΩ 0.035 inches of arc
(2) 4 MΩ1
100V MΩ
4 MΩ 0.035 inches of arc
(2) 2 MΩ2
100V MΩ
2 MΩ 0.035 inches of arc
1 Models 212159, 212359, 212459, 212559, MJ159, MJ359, MJ459, and MJ559 only.
2 Model 212160 only.
b.
Adjustments. No adjustments can be made.
10. Final Procedure
a. Deenergize and disconnect all equipment.
b. Annotate and affix DA label/form in accordance with TB 750-25.
5/(6 blank)


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