2.2 CONTROL AND CONNECTOR FEATURES (4630)
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1. Low battery indicator
2. AC power input
3. Input terminal Z (H)
4. Input terminal Y (S)
5. Input terminal Xv (ES)
6. Input terminal X (E)
Digital Ground Resistance Tester Models 4620 & 4630
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Ω
Figure 2
7. X-Z Fault indicator
8. Xv-Y High Resistance indicator
9. Xv-Y High Noise indicator
10. Display (with backlight)
11. Fuse holder
12. Test button
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