Fluke 8921A Цифровой универсальный измерительный прибор
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Модель:
8921A
Дата:
1978
Категория:
Группа:
Описание:
True RMS Voltmeter
Информация
The Models 8920A and 8921A are digital true rms voltmeters,
capable of accurately measuring the true rms value of
nonsinusoidal signals containing AC or AC + DC components.
Both have a frequency range of 10 Hz to 20 MHz with a
full-scale crest factor of seven, and are capable of
displaying measurements in either volts or dB units.
Hасто́льная кни́га тип:
Обслуживание и Руководство пользователя
Страницы:
129
Размер:
9.42 Mbytes (9881820 Bytes)
Язык:
english
Пересмотр:
Hасто́льная кни́га ID:
P/N 487157
Дата:
1988 07 01
Качество:
Отсканированы документу, все читается.
Дата загрузки:
2017 08 10
MD5:
10c1e16add724b1f56512860dbd9ad5c
Загрузки:
1456
Информация
.............................. 1-1
1-1. INTRODUCTION
............................................. 1-1
1-9. SPECIFICATIONS
.............................................. 1-2
1-11. Specifications, Options
........................................ 1-2
2 OPERATING INSTRUCTIONS
......................................... 2-1
2-1. INTRODUCTION
............................................. 2-1
2-3. SHIPPING INFORMATION
................................... 2-1
2-6. INSTALLATION
.............................................. 2-1
2-8. INPUT POWER
............................................... 2-2
2-10. CONTROLS AND INDICATORS
............................... 2-2
2-12. OPERATING
NOTES.......................................... 2-4
2-14. Fuse Replacement
............................................ 2-4
2-16. Display Indications
........................................... 2-4
2-21. Measurement
Connections..................................... 2-4
2-37. Input Signal Considerations
................................... 2-6
2-43. Range Selection
.............................................. 2-6
2-50. Voltage Display Mode
........................................ 2-6
2-53. dB Display Mode
............................................ 2-6
2-56. dBm Measurements
.......................................... 2-7
2-68. Linear Analog Output
........................................ 2-8
2-70. OPERATION
................................................. 2-8
3 THEORY OF OPERATION
............................................ 3-1
3-1. INTRODUCTION
............................................. 3-1
3-3. OVERALL FUNCTIONAL DESCRIPTION ...................... 3-1
3-5. Analog Circuitry
............................................. 3-1
3-10. Digital Circuitry
............................................. 3-2
3-13. DETAILED BLOCK DIAGRAM DESCRIPTION ................ 3-2
3-15. Signal Conditioner
........................................... 3-2
3-17. RMS
Converter.............................................. 3-2
3-20. A/D Converter
.............................................. 3-2
3-24. Controller
................................................... 3-5
3-42. Display and Annunciators
..................................... 3-10
3-45. Power supply
............................................... 3-11
4 MAINTENANCE
...................................................... 4-1
4-1. INTRODUCTION
..........................................................................................4-1
4-4. GENERAL MAINTENANCE
......................................................................4-1
4-5. Access Information
......................................................................................4-1
4-7. INPUT POWER SELECTION
....................................................................4-1
4-9. Cleaning
........................................................................................................4-1
4-11. Fuse Replacement
........................................................................................4-3
4-13. PERFORMANCE CHECK
..........................................................................4-3
4-15. Low and Midband Performance Check (Volts Display Mode)
............4-3
4-17. dB Display Mode Check
............................................................................4-3
4-19. DC Low Level Check
..................................................................................4-5
4-21. AC Low Level Check
..................................................................................4-5
4-23. High Frequency Response Check
..............................................................4-5
4-25. CALIBRATION
..............................................................................................4-5
4-28. Power supply Calibration
..........................................................................4-5
4-30. Low and Midband Accuracy Adjustments
..............................................4-10
4-32. Linear Analog Output /8920A only)
........................................................4-10
4-34. AC Low Level Calibration
........................................................................4-10
4-36. High Frequency Calibration
......................................................................4-13
4-38. RMS Protection Circuit Calibration
........................................................4-13
4-40.
TROUBLESHOOTING..................................................................................4-14
4-44. RMS Sensor
Replacement..........................................................................4-15
4-46. A/D Calibration Resistor Selection
..........................................................4-19
4-48. DC Offset Resistor Selection
...................................4-19
5 LIST OF REPLACEABLE PARTS
...................................... 5-1
5-1. INTRODUCTION
............................................. 5-2
5-4. HOW TO OBTAIN
PARTS..................................... 5-2
6 OPTION AND ACCESSORY INFORMATION
........................... 6-1
7 GENERAL INFORMATION
............................................ 7-1
7A-1 MANUAL CHANGE INFORMATION
................................... 7A-1
8 SCHEMATIC DIAGRAMS
............................................. 8-1
Hасто́льная кни́га тип:
Руководство по техническому обслуживанию дополнения
Страницы:
5
Размер:
45.04 Kbytes (46117 Bytes)
Язык:
english
Пересмотр:
8
Hасто́льная кни́га ID:
Дата:
1999 06 01
Качество:
Электронный документ, ни сканирование, очень хорошо читается.
Дата загрузки:
2018 01 14
MD5:
ff6b80a0b080e0bb159ae51074248787
Загрузки:
1007
Информация
Manual Supplement