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Page ix

| 17 Instruments |

| 334 |

| Function |

| 334 |

| Principle of Operation |

| 334 |

| Ammeters |

| 335 |

| Voltmeters |

| 336 |

| Wattmeters |

| 339 |

| Reactive Volt-Ampere Meter or Varmeter |

| 340 |

| Power-Factor Meter |

| 343 |

| Frequency Meter |

| 343 |

| Watt-Hour Meters |

| 343 |

| Reactive Volt-Ampere-Hour Meters |

| 346 |

| Demand Meters |

| 346 |

| Other Types of Meters |

| 351 |

| Method of Connecting Instruments |

| 354 |

| Measurements Exceeding Instrument Ranges |

| 356 |

| Resistance Measurement |

| 361 |

| Phase Rotation Indicator |

| 365 |

| Construction Features |

| 365 |

| Instrument Care: Operation and Maintenance |

| 366 |

| Review |

| 367 |

| Appendix |

| 370 |

| Index |

| 385 |

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