TM 11-6625-3071-14
TABLE OF CONTENTS
Section Page
I. GENERAL INFORMATION...........................1-1
1-1. Introduction.......................................1-1
1-3. Section I, General Information..........1-1
1-5. Section II, Installation Procedures....1-1
1-7. Section III, Operation........................1-1
1-9. Section IV, Performance Test and
Calibration 1-1
1-11. Section V, Replaceable Parts...........1-1
1-13. Section VI, Backdating.....................1-1
1-15. Section VII, Service..........................1-1
1-17. Appendix A.......................................1-1
1-19. Description........................................1-1
1-22. Specifications...................................1-1
1-24. Instrument and Manual
Identification......................................1-1
1-27. Options.............................................1-2
1-29. Accessories Available.......................1-2
Section Page
II. INSTALLATION.............................................2-1
2-1. Introduction.......................................2-1
2-3. Initial Inspection................................2-1
2-5. Power Requirements........................2-1
2-7. Line Frequency and Line
Voltage Selection..............................2-1
2-9. Power Cords and Receptacles.........2-2
2-11. Grounding Requirements.................2-1
2-13. Bench Use and Rack Mounting........2-2
2-14. Bench Use........................................2-2
2-16. Rack Mounting..................................2-3
2-18. HP-IB Interface Connections............2-3
2-21. Address Selection.............................2-3
2-24. Environmental Requirements...........2-3
2-25. Operating and Storage
Temperature.....................................2-3
2-27. Repackaging for Shipment...............2-4
Section Page
III. OPERATION.................................................3-1
3-1. Introduction.......................................3-1
3-4. General Information..........................3-1
3-5. AC Power Operation.........................3-1
3-7. Turn-On............................................3-1
3-10. Display..............................................3-1
3-12. Input Terminals.................................3-3
3-15. Input Terminals Cleaning..................3-3
3-17. Front Panel Operation......................3-3
3-18. DC Volts Measurements...................3-3
3-22. AC Volts Measurements...................3-4
3-26. Resistance Measurements...............3-4
3-30. DC Current Measurements...............3-5
3-34. AC Current Measurements...............3-5
3-38. Ranging............................................3-5
3-43. Triggering.........................................3-5
3-50. Shifted Operation..............................3-6
3-51. General.............................................3-6
3-54. Number of Digits Displayed..............3-6
3-57. Autozero...........................................3-7
3-60. Self-Test/Reset Operation................3-7
3-63. Calibration........................................3-7
3-66. Miscellaneous Operations................3-8
3-67. Voltmeter Complete ........................3-8
3-69. Remote Operation............................3-8
3-70. General.............................................3-8
3-74. 3478A Response to Bus Messages.3-8
3-92. 3478A Addressing............................3-10
3-96. Talk-Only Mode (No Controller).......3-10
3-98. 3478A HP-IB Programming..............3-11
3-117.Advanced Programming...................3-14
Section Page
IV. PERFORMANCE TEST AND
CALIBRATION..............................................4-1
4-1. Introduction.......................................4-1
4-4. Equipment Required.........................4-1
4-6. DC Volts Test and Calibration..........4-1
4-10. AC Volts Test and Calibration .........4-2
4-12. Ohms Test and Calibration..............4-2
4-15. DC Current Test and Calibration......4-3
4-20. AC Current Test and Calibration......4-3
4-24. Test Cards........................................4-3
4-26. Calibration Cycle..............................4-3
4-28. Test Failure .....................................4-3
4-30. Instrument Set-Up............................4-3
4-32. Instrument Specification...................4-3
4-35. Specification Breakdown .................4-4
4-39. Temperature Coefficient
(Reference Temperature)................4-4
4-41. Test Consideration...........................4-4
4-42. General.............................................4-4
4-44. Ambiguous Region...........................4-4
4-47. Performance Test.............................4-5
4-49. DC Volts Test...................................4-5
4-54. DC Current Test...............................4-7
4-59. AC Volts Test...................................4-8
4-64. AC Current Test...............................4-9
4-69. Ohms Test.4-10...............................4-10
4-76. Combined Calibration and
Performance Tests...........................4-11
4-77. General.............................................4-11
4-80. Calibrating the 3478A.......................4-12
4-82. Calibration Messages.......................4-13
4-84. Calibration Procedures.....................4-13
4-86. DC Volts Calibration and Test..........4-13
4-90. DC Current Calibration and Test......4-15
4-94. AC Volts Calibration and Test..........4-16
4-99. AC Current Calibration and
Test (Optional................................... 4-18
4-103.Ohms Calibration and Test..............4-18
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