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®
5820A
Oscilloscope Calibrator
Service Manual
PN 673142
June 1999 Rev.1, 4/03
© 1999-2003 Fluke Corporation, All rights reserved. Printed in U.S.A. All product names are trademarks of their respective companies.
LIMITED WARRANTY & LIMITATION OF LIABILITY
Each Fluke product is warranted to be free from defects in material and workmanship under normal use and service. The warranty period is one year and begins on the date of shipment. Parts, product repairs and services are warranted for 90 days. This warranty extends only to the original buyer or end-user customer of a Fluke authorized reseller, and does not apply to fuses, disposable batteries or to any product which, in Fluke’s opinion, has been misused, altered, neglected or damaged by accident or abnormal conditions of operation or handling.Fluke warrants that software will operate substantially in accordance with its functional specifications for 90 days and that it has been properly recorded on non-defective media. Fluke does not warrant that software will be error free or operate without interruption.
Fluke authorized resellers shall extend this warranty on new and unused products to end-user customers only but have no authority to extend a greater or different warranty on behalf of Fluke. Warranty support is available if product is purchased through a Fluke authorized sales outlet or Buyer has paid the applicable international price. Fluke reserves the right to invoice Buyer for importation costs of repair/replacement parts when product purchased in one country is submitted for repair in another country.
Fluke’s warranty obligation is limited, at Fluke’s option, to refund of the purchase price, free of charge repair, or replacement of a defective product which is returned to a Fluke authorized service center within the warranty period.
To obtain warranty service, contact your nearest Fluke authorized service center or send the product, with a description of the difficulty, postage and insurance prepaid (FOB Destination), to the nearest Fluke authorized service center. Fluke assumes no risk for damage in transit. Following warranty repair, the product will be returned to Buyer, transportation prepaid (FOB Destination). If Fluke determines that the failure was caused by misuse, alteration, accident or abnormal condition of operation or handling, Fluke will provide an estimate of repair costs and obtain authorization before commencing the work. Following repair, the product will be returned to the Buyer transportation prepaid and the Buyer will be billed for the repair and return transportation charges (FOB Shipping Point).
THIS WARRANTY IS BUYER’S SOLE AND EXCLUSIVE REMEDY AND IS IN LIEU OF ALL OTHER WARRANTIES, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO ANY IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. FLUKE SHALL NOT BE LIABLE FOR ANY SPECIAL, INDIRECT, INCIDENTAL OR CONSEQUENTIAL DAMAGES OR LOSSES, INCLUDING LOSS OF DATA, WHETHER ARISING FROM BREACH OF WARRANTY OR BASED ON CONTRACT, TORT, RELIANCE OR ANY OTHER THEORY.
Since some countries or states do not allow limitation of the term of an implied warranty, or exclusion or limitation of incidental or consequential damages, the limitations and exclusions of this warranty may not apply to every buyer. If any provision of this Warranty is held invalid or unenforceable by a court of competent jurisdiction, such holding will not affect the validity or enforceability of any other provision.
Fluke Corporation |
Fluke Europe B.V. |
P.O. Box 9090 |
P.O. Box 1186 |
Everett, WA 98206-9090 |
5602 BD Eindhoven |
U.S.A. |
The Netherlands |
5/94
Safety Information
This Calibrator complies with IEC publication 1010-1 (1992-1), Safety Requirements for Electrical Measuring, Control and Laboratory Equipment, and ANSI/ISA-S82.01-1994, and CAN/CSA-C22.2 No. 1010.1-92. This manual contains information, warnings, and cautions that must be followed to ensure safe operation and to maintain the Calibrator in a safe condition. Use of this Calibrator in a manner not specified herein may impair the protection provided by the Calibrator.
This Calibrator is designed for IEC 1010-1 Installation Category II use. It is not designed for connection to circuits rated over 4800 VA.
Warning statements identify conditions or practices that could result in personal injury or loss of life.
Caution statements identify conditions or practices that could result in damage to equipment.
SYMBOLS MARKED ON THE CALIBRATOR
WARNING Risk of electric shock. Refer to the manual (see the Index for references).
GROUND Ground terminal to chassis (earth).
Attention Refer to the manual (see the Index for references). This symbol indicates that information about usage of a feature is contained in the manual.
AC POWER SOURCE
The Calibrator is intended to operate from an ac power source that will not apply more than 264V ac rms between the supply conductors or between either supply conductor and ground. A protective ground connection by way of the grounding conductor in the power cord is required for safe operation.
USE THE PROPER FUSE
To avoid fire hazard, use only the specified replacement fuse:
∙For 100 V or 120 V operation, use a 5A/250V time delay fuse (Fluke PN 109215).
∙For 220 V or 240 V operation, use a 2.5A/250V time delay fuse (Fluke PN 851931).
GROUNDING THE CALIBRATOR
The Calibrator uses controlled overvoltage techniques that require the Calibrator to be grounded whenever normal mode or common mode ac voltages or transient voltages may occur. The enclosure must be grounded through the grounding conductor of the power cord, or through the rear panel CHASSIS GROUND binding post.
USE THE PROPER POWER CORD
Use only the power cord and connector appropriate for the voltage and plug configuration in your country.
Use only a power cord that is in good condition.
Refer power cord and connector changes to qualified service personnel.
DO NOT OPERATE IN EXPLOSIVE ATMOSPHERES
To avoid explosion, do not operate the Calibrator in an atmosphere of explosive gas.
CHECK INSULATION RATINGS
Verify that the voltage applied to the unit under test does not exceed the insulation rating of the UUT and the interconnecting cables.
DO NOT REMOVE COVER DURING OPERATION
To avoid personal injury or death, do not remove the Calibrator cover without first removing the power source connected to the rear panel. Do not operate the Calibrator without the cover properly installed. Normal calibration is accomplished with the cover closed. Access procedures and the warnings for such procedures are contained in the Service Manual. Service procedures are for qualified service personnel only.
DO NOT ATTEMPT TO OPERATE IF PROTECTION MAY BE IMPAIRED
If the Calibrator appears damaged or operates abnormally, protection may be impaired. Do not attempt to operate the Calibrator under these conditions. Refer all questions of proper Calibrator operation to qualified service personnel.
Table of Contents
Chapter |
|
Title |
Page |
1 |
Introduction and Specifications ........................................................ |
1-1 |
|
|
1-1. |
Introduction........................................................................................... |
1-3 |
|
1-2. |
How to Contact Fluke ........................................................................... |
1-4 |
|
1-3. |
Instruction Manuals .............................................................................. |
1-4 |
|
1-4. |
5820A Operators Manual ................................................................. |
1-4 |
|
1-5. |
5820A Service Manual ..................................................................... |
1-5 |
|
1-6. |
Specifications........................................................................................ |
1-5 |
|
1-7. |
General Specifications .......................................................................... |
1-6 |
|
1-8. |
Volt Specifications ........................................................................... |
1-8 |
|
1-9. |
DC Volt Measure Specifications...................................................... |
1-8 |
|
1-10. |
Edge Specifications .......................................................................... |
1-9 |
|
1-11. |
Leveled Sine Wave Specifications ................................................... |
1-10 |
|
1-12. |
Time Marker Specifications ............................................................. |
1-11 |
|
1-13. |
Wave Generator Specifications ........................................................ |
1-12 |
|
1-14. |
1 ns Pulse Generator Specifications ................................................. |
1-13 |
|
1-15. |
Trigger Signal Specifications (Pulse Function) ............................... |
1-13 |
|
1-16. |
Trigger Signal Specifications (Time Marker Function) ................... |
1-13 |
|
1-17. |
Trigger Signal Specifications (Edge Function) ................................ |
1-14 |
|
1-18. |
Trigger Signal Specifications (Square Wave Voltage Function) ..... |
1-14 |
|
1-19. |
Trigger Signal Specifications (TV) .................................................. |
1-14 |
|
1-20. |
Tunnel Diode Drive Capability ........................................................ |
1-14 |
|
1-21. |
Oscilloscope Input Resistance Measurement Specifications ........... |
1-14 |
|
1-22. |
Oscilloscope Input Capacitance Measurement Specifications......... |
1-14 |
|
1-23. |
Overload Measurement Specifications............................................. |
1-15 |
|
1-24. |
External Reference Input Specifications .......................................... |
1-15 |
|
1-25. |
Auxiliary Input Specifications.......................................................... |
1-15 |
|
1-26. |
Current Output Specifications .......................................................... |
1-15 |
2 |
Theory of Operation ........................................................................... |
2-1 |
|
|
2-1. |
Introduction........................................................................................... |
2-3 |
|
2-2. |
Voltage Mode ................................................................................... |
2-7 |
|
2-3. |
Edge Mode........................................................................................ |
2-7 |
|
2-4. |
Leveled Sine Wave Mode ................................................................ |
2-7 |
|
2-5. |
Time Marker Mode .......................................................................... |
2-7 |
i
5820A
Service Manual
|
2-6. |
Wave Generator Mode ..................................................................... |
2-8 |
|
2-7. |
Pulse Generator ................................................................................ |
2-8 |
|
2-8. |
Input DC Voltage Measurement Mode ............................................ |
2-8 |
|
2-9. |
Input Impedance Mode (Resistance) ................................................ |
2-8 |
|
2-10. |
Input Impedance Mode (Capacitance).............................................. |
2-8 |
|
2-11. |
Current Module ................................................................................ |
2-9 |
|
2-12. |
Overload Mode................................................................................. |
2-9 |
|
2-13. |
Trigger .............................................................................................. |
2-9 |
|
2-14. |
High Frequency Switching ............................................................... |
2-9 |
|
2-15. |
5 Channel Option.............................................................................. |
2-9 |
|
2-16. |
GHz Option Module ......................................................................... |
2-9 |
3 |
Calibration and Verification ............................................................... |
3-1 |
|
|
3-1. |
Introduction........................................................................................... |
3-3 |
|
3-2. |
Equipment Required for Calibration and Verification ......................... |
3-3 |
|
3-3. |
Calibration Setup .................................................................................. |
3-6 |
|
3-4. |
Calibration and Verification of Square Wave Voltage Functions........ |
3-6 |
|
3-5. |
Overview of HP3458A Operation .................................................... |
3-6 |
|
3-6. |
Setup for Scope Calibrator Voltage Square Wave Measurements... |
3-6 |
|
3-7. |
Setup for Scope Calibrator Edge and Wave Gen Square Wave |
|
|
|
Measurements................................................................................... |
3-8 |
|
3-8. |
DC Voltage Calibration ........................................................................ |
3-9 |
|
3-9. |
AC Voltage Calibration ........................................................................ |
3-10 |
|
3-10. |
DC Measurement Calibration ............................................................... |
3-11 |
|
3-11. |
Current Calibration ............................................................................... |
3-11 |
|
3-12. |
DC Current Calibration .................................................................... |
3-11 |
|
3-13. |
AC Current Calibration .................................................................... |
3-11 |
|
3-14. |
Wave Generator Calibration ................................................................. |
3-12 |
|
3-15. |
Edge Amplitude Calibration ................................................................. |
3-12 |
|
3-16. |
Leveled Sine Wave Amplitude Calibration .......................................... |
3-13 |
|
3-17. |
Leveled Sine Wave Flatness Calibration.............................................. |
3-14 |
|
3-18. |
Low Frequency Calibration.............................................................. |
3-14 |
|
3-19. |
High Frequency Calibration ............................................................. |
3-15 |
|
3-20. |
Pulse Width Calibration........................................................................ |
3-15 |
|
3-21. |
MeasZ Calibration ................................................................................ |
3-16 |
|
3-22. |
Leveled Sine Wave Flatness Calibration (GHz Option)....................... |
3-18 |
|
3-23. |
5820A-5 Option .................................................................................... |
3-18 |
|
3-24. |
Verification ........................................................................................... |
3-18 |
|
3-25. |
DC Voltage Verification .................................................................. |
3-20 |
|
3-26. |
Verification at 1 MΩ.................................................................... |
3-20 |
|
3-27. |
Verification at 50 Ω ..................................................................... |
3-20 |
|
3-28. |
AC Voltage Amplitude Verification ................................................ |
3-23 |
|
3-29. |
Verification at 1 MΩ.................................................................... |
3-23 |
|
3-30. |
Verification at 50 Ω ..................................................................... |
3-24 |
|
3-31. |
AC Voltage Frequency Verification ................................................ |
3-25 |
|
3-32. |
DC Measurement Verification ......................................................... |
3-26 |
|
3-33. |
Current Verification ......................................................................... |
3-27 |
|
3-34. |
DC Current Verification .............................................................. |
3-27 |
|
3-35. |
AC Current Verification .............................................................. |
3-28 |
|
3-36. |
Edge Amplitude Verification ........................................................... |
3-30 |
|
3-37. |
Edge Frequency Verification............................................................ |
3-30 |
|
3-38. |
Edge Duty Cycle Verification .......................................................... |
3-31 |
|
3-39. |
Edge Rise Time Verification............................................................ |
3-31 |
|
3-40. |
Edge Aberrations .............................................................................. |
3-33 |
ii
|
|
|
Contents (continued) |
|
3-41. |
Tunnel Diode Pulser Drive Amplitude Verification ........................ |
3-34 |
|
3-42. |
Leveled Sine Wave Amplitude Verification .................................... |
3-34 |
|
3-43. |
MHz Leveled Sine Wave Flatness Verification ............................... |
3-35 |
|
3-44. |
Equipment Setup for Low Frequency Flatness ............................ |
3-35 |
|
3-45. |
Equipment Setup for High Frequency Flatness ........................... |
3-36 |
|
3-46. |
Low Frequency Verification ........................................................ |
3-36 |
|
3-47. |
High Frequency Verification ....................................................... |
3-37 |
|
3-48. |
< 600 MHz Leveled Sine Harmonic Verification........................ |
3-47 |
|
3-49. |
Time Marker Verification ................................................................ |
3-48 |
|
3-50. |
Wave Generator Verification ........................................................... |
3-50 |
|
3-51. |
Verification at 1 MΩ.................................................................... |
3-50 |
|
3-52. |
Verification at 50 Ω ..................................................................... |
3-52 |
|
3-53. |
Pulse Width Verification.................................................................. |
3-53 |
|
3-54. |
Pulse Skew Calibration and Verification ......................................... |
3-54 |
|
3-55. |
Calibration.................................................................................... |
3-55 |
|
3-56. |
Verification .................................................................................. |
3-55 |
|
3-57. |
Pulse Period Verification ................................................................. |
3-56 |
|
3-58. |
MeasZ Resistance Verification ........................................................ |
3-56 |
|
3-59. |
MeasZ Capacitance Verification...................................................... |
3-57 |
|
3-60. |
Overload Function Verification ....................................................... |
3-58 |
|
3-61. |
Hardware Adjustments ......................................................................... |
3-59 |
|
3-62. |
Equipment Required......................................................................... |
3-59 |
|
3-63. |
Adjusting the Leveled Sine Wave Function..................................... |
3-59 |
|
3-64. |
Equipment Setup .......................................................................... |
3-59 |
|
3-65. |
Adjusting the Leveled Sine Wave VCO Balance ........................ |
3-60 |
|
3-66. |
Adjusting the Leveled Sine Wave Harmonics ............................. |
3-60 |
|
3-67. |
Adjusting the Aberrations for the Edge Function ............................ |
3-61 |
|
3-68. |
Equipment Setup .......................................................................... |
3-61 |
|
3-69. |
Adjusting the Edge Aberrations................................................... |
3-62 |
4 |
Maintenance........................................................................................ |
4-1 |
|
|
4-1. |
Introduction........................................................................................... |
4-3 |
|
4-2. |
Replacing the Line Fuse ....................................................................... |
4-3 |
|
4-3. |
Cleaning the Air Filter .......................................................................... |
4-4 |
|
4-4. |
General Cleaning .................................................................................. |
4-6 |
|
4-5. |
Service Information .............................................................................. |
4-6 |
5 |
Options................................................................................................ |
5-1 |
|
|
5-1. |
Introduction........................................................................................... |
5-3 |
|
5-2. |
5820A-5 Option .................................................................................... |
5-3 |
|
5-3. |
GHz Module ......................................................................................... |
5-3 |
|
5-4. |
GHz Option Specifications............................................................... |
5-3 |
|
5-5. |
Fast Edge Specifications .................................................................. |
5-3 |
|
5-6. |
Leveled Sine Wave (> 600 MHz ) Specifications............................ |
5-4 |
|
5-7. |
Time Marker Specifications ............................................................. |
5-5 |
|
5-8. |
Theory of Operation ......................................................................... |
5-5 |
|
5-9. |
Fast Edge Adjustment for the GHz Module ..................................... |
5-6 |
|
5-10. |
GHz Leveled Sine Wave Frequency Verification ............................ |
5-9 |
|
5-11. |
GHz Leveled Sine Wave Harmonics Verification ........................... |
5-10 |
|
5-12. |
Verification Tables ............................................................................... |
5-11 |
|
5-13. |
Verification Tables for Channels 2-5 ................................................... |
5-21 |
|
5-14. |
Leveled Sine Flatness (< 600 MHz)................................................. |
5-21 |
|
5-15. |
Pulse Width ...................................................................................... |
5-23 |
|
5-16. |
Edge Rise Time Verification (Channels 2-5) ................................... |
5-24 |
iii
5820A
Service Manual
|
5-17. |
Pulse Skew........................................................................................ |
5-25 |
|
5-18. |
Channel 2 DMM Input ..................................................................... |
5-25 |
|
5-19. |
Channel 3 DMM Input ..................................................................... |
5-27 |
|
5-20. |
Channel 4 DMM Input ..................................................................... |
5-28 |
|
5-21. |
Channel 5 DMM Input ..................................................................... |
5-29 |
|
5-22. |
Capacitance ...................................................................................... |
5-30 |
6 |
Replaceable Parts............................................................................... |
6-1 |
|
|
6-1. |
Introduction........................................................................................... |
6-3 |
|
6-2. |
How to Obtain Parts.............................................................................. |
6-3 |
|
6-3. |
List of Replacement Parts ..................................................................... |
6-3 |
Index
iv
List of Tables
Table |
Title |
Page |
1-1. |
General Specifications ........................................................................................... |
1-6 |
1-2. |
Volt Specifications................................................................................................. |
1-8 |
1-3. |
DC Volt Measure Specifications ........................................................................... |
1-8 |
1-4. |
Edge Specifications................................................................................................ |
1-9 |
1-5. |
Leveled Sine Wave Specifications (≤ 600 MHz ).................................................. |
1-10 |
1-6. |
Time Marker Specifications................................................................................... |
1-11 |
1-7. |
Wave Generator Specifications.............................................................................. |
1-12 |
1-8. |
Pulse Generator Specifications .............................................................................. |
1-13 |
1-9. |
Trigger Signal Specifications (Pulse Function) ..................................................... |
1-13 |
1-10. |
Trigger Signal Specifications (Time Marker Function)......................................... |
1-13 |
1-11. |
Trigger Signal Specifications (Edge Function)...................................................... |
1-14 |
1-12. |
Trigger Signal Specifications (Square Wave Voltage Function)........................... |
1-14 |
1-13. |
TV Trigger Signal Specifications .......................................................................... |
1-14 |
1-14. |
Tunnel Diode Drive Capability.............................................................................. |
1-14 |
1-15. |
Oscilloscope Input Resistance Measurement Specifications ................................. |
1-14 |
1-16. |
Oscilloscope Input Capacitance Measurement Specifications .............................. |
1-14 |
1-17. |
Overload Measurement Specifications .................................................................. |
1-15 |
1-18. |
Auxiliary Input Performance.................................................................................. |
1-15 |
1-19. |
Current Output Specifications................................................................................ |
1-15 |
3-1. |
Scope Calibrator Calibration and Verification Equipment.................................... |
3-3 |
3-2. |
Voltage HP3458A Settings .................................................................................... |
3-7 |
3-3. |
Edge and Wave Generator HP3458A Settings....................................................... |
3-8 |
3-4. |
Verification Methods for Scope Calibrator Functions........................................... |
3-19 |
3-5. |
DC Voltage Verification ........................................................................................ |
3-21 |
3-6. |
DC Voltage Verification at 50 Ω ........................................................................... |
3-22 |
3-7. |
AC Voltage Amplitude Verification ...................................................................... |
3-24 |
3-8. |
AC Voltage Verification at 50Ω ............................................................................ |
3-25 |
3-9. |
AC Voltage Frequency Verification ...................................................................... |
3-26 |
3-10. |
DC Voltage Measurement Verification ................................................................. |
3-27 |
3-11. |
DC Voltage Verification at 1 MΩ ......................................................................... |
3-28 |
3-12. |
Edge and Wave Generator HP3458A Settings....................................................... |
3-28 |
3-13. |
AC Current Verification......................................................................................... |
3-29 |
3-14. |
Edge Amplification Verification............................................................................ |
3-30 |
3-15. |
Edge Frequency Verification ................................................................................. |
3-31 |
3-16. |
Edge Rise Time Verification.................................................................................. |
3-33 |
v
5820A
Service Manual
3-17. |
Edge Aberrations.................................................................................................... |
3-33 |
3-18. |
Tunnel Diode Pulser Verification .......................................................................... |
3-34 |
3-19. |
Leveled Sine Wave Amplitude Verification .......................................................... |
3-35 |
3-20. |
Low Frequency Flatness Verification at 5.5 V ...................................................... |
3-37 |
3-21. |
High Frequency Flatness Verification ................................................................... |
3-38 |
3-22. |
Leveled Sine Wave Harmonics Verification ......................................................... |
3-48 |
3-23. |
Marker Generator Verification .............................................................................. |
3-49 |
3-24. |
Wave Generator Verification at 1 MΩ .................................................................. |
3-51 |
3-25. |
Wave Generator Verification at 50 Ω .................................................................... |
3-52 |
3-25. |
Pulse Generator Verification: Pulse Width............................................................ |
3-54 |
3-25. |
Pulse Skew ............................................................................................................. |
3-55 |
3-25. |
Pulse Generator Verification: Period ..................................................................... |
3-56 |
3-26. |
MeasZ Resistance Verification .............................................................................. |
3-57 |
3-27. |
MeasZ Capacitance Verification............................................................................ |
3-58 |
4-1. |
Replacement Fuses................................................................................................. |
4-3 |
5-1. |
Fast Edge Specifications ........................................................................................ |
5-3 |
5-2. |
Leveled Sine Wave Specifications (> 600 MHz)................................................... |
5-4 |
5-3. |
Time Marker Specifications................................................................................... |
5-5 |
5-4. |
Leveled Sine Wave Frequency Verification (Channels 1, 2, and 5)..................... |
5-11 |
5-5. |
Fast Edge Rise Time for Channels 1, 2, and 5 ....................................................... |
5-11 |
5-6. |
Leveled Sine Wave Harmonics Verification (Channels 1, 2, and 5) ..................... |
5-12 |
5-7. |
GHz Leveled Sinewave Verification: Flatness (Channels 1, 2, and 5).................. |
5-14 |
5-8. |
Leveled Sine Flatness (5.5 V) (Channel 2) ............................................................ |
5-21 |
5-9. |
Leveled Sine Flatness (5.5 V) (Channel 3) ............................................................ |
5-22 |
5-10. |
Leveled Sine Flatness (5.5 V) (Channel 4) ............................................................ |
5-22 |
5-11. |
Leveled Sine Flatness (5.5 V) (Channel 5) ............................................................ |
5-23 |
5-12. |
Pulse Width ............................................................................................................ |
5-23 |
5-13. |
Edge Rise Time (Channel 2) .................................................................................. |
5-24 |
5-14. |
Edge Rise Time (Channel 3) .................................................................................. |
5-24 |
5-15. |
Edge Rise Time (Channel 4) .................................................................................. |
5-24 |
5-16. |
Edge Rise Time (Channel 5) .................................................................................. |
5-24 |
5-17. |
Pulse Skew ............................................................................................................. |
5-25 |
5-18. |
Levsine Amplitude ................................................................................................. |
5-25 |
5-19. |
DC Voltage 1 MΩ .................................................................................................. |
5-25 |
5-20. |
AC Voltage 1 MΩ .................................................................................................. |
5-26 |
5-21. |
Edge Amplitude...................................................................................................... |
5-26 |
5-22. |
Levsine Amplitude ................................................................................................. |
5-27 |
5-23. |
DC Voltage 1 MΩ .................................................................................................. |
5-27 |
5-24. |
AC Voltage 1 MΩ .................................................................................................. |
5-27 |
5-25. |
Edge Amplitude...................................................................................................... |
5-27 |
5-26. |
Levsine Amplitude ................................................................................................. |
5-28 |
5-27. |
DC Voltage 50 Ω ................................................................................................... |
5-28 |
5-28. |
AC Voltage 50 Ω ................................................................................................... |
5-28 |
5-29. |
Edge Amplitude...................................................................................................... |
5-29 |
5-30. |
Levsine Amplitude ................................................................................................. |
5-29 |
5-31. |
DC Voltage 1 MΩ .................................................................................................. |
5-29 |
5-32. |
AC Voltage 1 MΩ .................................................................................................. |
5-29 |
5-33. |
Edge Amplitude...................................................................................................... |
5-30 |
5-34. |
Capacitance (Channels 2-5) ................................................................................... |
5-30 |
6-1. |
5820A Manuals ...................................................................................................... |
6-4 |
6-2. |
Front Panel Module List of User Replaceable Parts .............................................. |
6-4 |
6-3. |
Rear Panel Module List of Replaceable Parts........................................................ |
6-7 |
6-4. |
Chassis Module List of Replaceable Parts............................................................. |
6-9 |
6-5. |
Single Channel Without GHz Option List of Replaceable Parts ........................... |
6-12 |
6-6. |
Single Channel With GHZ Option List of Replaceable Parts................................ |
6-15 |
vi
List of Figures
Figure |
Title |
Page |
1-1. |
5820A Multi-Product Calibrator ............................................................................ |
1-3 |
1-2. |
5820A Calibrator Dimensional Outline ................................................................. |
1-6 |
2-1. |
Signal Diagram of Chassis ..................................................................................... |
2-4 |
2-2. |
Block Diagram of Scope Module........................................................................... |
2-5 |
2-3. |
Signal Diagram of Scope Module .......................................................................... |
2-6 |
3-1. |
Setup for Scope Calibrator Voltage Square Wave Measurements ........................ |
3-8 |
3-2. |
Setup for Scope Calibrator Edge and Wave Gen Square Wave Measurements .... |
3-9 |
3-3. |
Connecting the Calibrator Mainframe to the 5790A AC Measurement Standard. |
3-14 |
3-4. |
Setup for MeasZ Calibration.................................................................................. |
3-17 |
3-5. |
Setup for AC Voltage Frequency Verification ...................................................... |
3-26 |
3-6. |
Setup for Edge Rise Time Verification.................................................................. |
3-32 |
3-7. |
Setup for Leveled Sine Wave Harmonics Verification.......................................... |
3-47 |
3-8. |
Setup for Wave Generator Function ...................................................................... |
3-50 |
3-9. |
Setup for Overload Function Verification ............................................................. |
3-58 |
3-10. |
Adjusting the Leveled Sine Wave Balance............................................................ |
3-60 |
3-11. |
Adjusting the Leveled Sine Wave Harmonics ....................................................... |
3-61 |
3-12. |
Adjusting Short-Term Edge ................................................................................... |
3-63 |
4-1. |
Accessing the Fuse ................................................................................................. |
4-4 |
4-2. |
Accessing the Air Filter ......................................................................................... |
4-5 |
5-1. |
GHz Block Diagram............................................................................................... |
5-6 |
5-2. |
Fast Edge Full Wave Form..................................................................................... |
5-7 |
5-3. |
Porch ...................................................................................................................... |
5-8 |
5-4. |
Bullet on the Porch................................................................................................. |
5-8 |
5-5. |
Critically Triggered Edge at Porch Height Level I ................................................ |
5-9 |
5-6. |
Critically Distorted Edge at Porch Height Level II................................................ |
5-9 |
5-7. |
Setup for Leveled Sine Wave Harmonics Verification.......................................... |
5-10 |
6-1. |
Final Assembly....................................................................................................... |
6-5 |
vii
5820A
Service Manual
viii
Chapter 1
Introduction and Specifications
|
Title |
Page |
1-1. |
Introduction........................................................................................... |
1-3 |
1-2. |
How to Contact Fluke ........................................................................... |
1-4 |
1-3. |
Instruction Manuals .............................................................................. |
1-4 |
1-4. |
5820A Operators Manual ................................................................. |
1-4 |
1-5. |
5820A Service Manual ..................................................................... |
1-5 |
1-6. |
Specifications........................................................................................ |
1-5 |
1-7. |
General Specifications .......................................................................... |
1-6 |
1-8. |
Volt Specifications ........................................................................... |
1-8 |
1-9. |
DC Volt Measure Specifications...................................................... |
1-8 |
1-10. |
Edge Specifications .......................................................................... |
1-9 |
1-11. |
Leveled Sine Wave Specifications ................................................... |
1-10 |
1-12. |
Time Marker Specifications ............................................................. |
1-11 |
1-13. |
Wave Generator Specifications ........................................................ |
1-12 |
1-14. |
1 ns Pulse Generator Specifications ................................................. |
1-13 |
1-15. |
Trigger Signal Specifications (Pulse Function) ............................... |
1-13 |
1-16. |
Trigger Signal Specifications (Time Marker Function) ................... |
1-13 |
1-17. |
Trigger Signal Specifications (Edge Function) ................................ |
1-14 |
1-18. |
Trigger Signal Specifications (Square Wave Voltage Function) ..... |
1-14 |
1-19. |
Trigger Signal Specifications (TV) .................................................. |
1-14 |
1-20. |
Tunnel Diode Drive Capability ........................................................ |
1-14 |
1-21. |
Oscilloscope Input Resistance Measurement Specifications ........... |
1-14 |
1-22. |
Oscilloscope Input Capacitance Measurement Specifications......... |
1-14 |
1-23. |
Overload Measurement Specifications............................................. |
1-15 |
1-24. |
External Reference Input Specifications .......................................... |
1-15 |
1-25. |
Auxiliary Input Specifications.......................................................... |
1-15 |
1-26. |
Current Output Specifications .......................................................... |
1-15 |
1-1
5820A
Service Manual
1-2
Introduction and Specifications 1
Introduction
1-1. Introduction
The Fluke Model 5820A Oscilloscope Calibrator (Figure 1-1) is a precise instrument that calibrates analog and digital oscilloscopes. Specifications are provided in this chapter.
Warning
To prevent electric shock or other possible injuries, the 5820A Calibrator must be operated in the way specified by this manual or other documentation provided by Fluke.
WCaution
Input voltages exceeding 30 V dc may cause damage to the instrument. Do not apply voltages except in voltage measurement mode.
Features of the 5820A Calibrator include the following:
∙Automatic meter error calculation.
∙%and keys that change the output value to pre-determined cardinal values for various functions.
∙Programmable entry limits that prevent invalid amounts from being entered.
∙Edge, Leveled Sine, Pulse, Marker, and Wave Generation modes.
∙Accurate oscilloscopic input impedance measurement.
∙Tunnel Diode Pulse compatibility.
∙DC Volt Measure Mode.
∙Current Mode generates both DC and low frequency ac current.
∙1 ns to 500 ns pulse width capability with skew controlled trigger.
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CALIBRATOR • 2GHz |
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yh001f.eps |
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Figure 1-1. 5820A Oscilloscope Calibrator |
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1-3
5820A
Service Manual
∙External reference.
∙Auxiliary input.
∙5-channel output (5-Channel Option). The 5-Channel Option allows you to calibrate up to five oscilloscope channels simultaneously without changing cables.
∙Simultaneous output of a signal and a trigger signal.
∙600 MHz, Leveled Sine wave output.
∙Optional 600 MHz - 2.1 GHz, Leveled Sine wave output with 150 ps fast edge.
∙Standard IEEE-488 (GPIB) interface, complying with ANSI/IEEE Standards 488.1-1987 and 488.2-1987.
∙EIA Standard RS-232-C serial data interface for printing, displaying, or transferring internally stored calibration constants, and for remote control of the 5820A.
∙Pass-through RS-232-C serial data interface for communicating with the Unit Under Test (UUT).
∙Extensive automatic internal self testing and diagnostics of analog and digital functions.
1-2. How to Contact Fluke
USA and Canada: 1-888-99-FLUKE (1-888-993-5853)
Europe: +31 402-675-200
Japan: +81-3-3434-0181
Singapore: +65-738-5655
Anywhere in the world: +1-425-446-5500
For additional information about Fluke, its products, and services, visit Fluke’s web site at: www.fluke.com
1-3. Instruction Manuals
The 5820A Manual Set provides complete information for operators and service or maintenance technicians. The set includes:
∙5820A Operators Manual (PN 802154)
∙5820A Service Manual (PN 673142)
The 5820A Operators Manual ships with the instrument. The 5820A Service Manual is optional. Order additional copies of the manuals separately using the part number provided. For ordering instructions, refer to the Fluke Catalog, or ask a Fluke sales representative. These manuals are also available on Fluke's web sitewww.fluke.com.
1-4. 5820A Operators Manual
The 5820A Operators Manual provides complete information for installing the 5820A Oscilloscope Calibrator and operating it from the front panel keys and in remote configurations. The manual also provides a glossary of calibration, specifications, and error code information. The 5820A Operators Manual includes the following topics:
∙Installation
∙Operating controls and features, including front panel operation
∙Remote operation (IEEE-488 bus or serial port remote control)
1-4
Introduction and Specifications 1
Specifications
∙Serial port operation (printing, displaying, or transferring data, and setting up for serial port remote control)
∙Operator maintenance, including verification procedures and calibration approach for the 5820A
∙Accessories
∙Error Messages
1-5. 5820A Service Manual
This 5820A Service Manual includes: product specifications, appropriate theory of operation, calibration and verification procedures, maintenance information, and options.
1-6. Specifications
The following paragraphs describe the details for the 5820A specifications. All specifications are valid after allowing a warm-up period of 30 minutes, or twice the time the 5820A has been turned off. (For example, if the 5820A has been turned off for 5 minutes, the warm-up period is 10 minutes.)
All specifications apply for the temperature and time period indicated. For temperatures outside of tcal + 5 °C (tcal is the ambient temperature when the 5820A was calibrated),
the temperature coefficient is less than 0.1 times the 1-year specification per °C (limited to 0 °C - 50 °C).
If you ordered the GHz Option, the following specification tables are supplemented by the tables with similar headings in Chapter 5:
∙Edge Specifications
∙Leveled Sine Wave Specifications
Refer to Figure 1-2 for the dimensional outline of the 5820A Calibrator.
1-5
5820A
Service Manual
43.2 cm (17 in)
5820A OSCILLOSCOPE
CALIBRATOR • 2GHz
CAT SOURCE/MEASURE
EXT TRIG CHAN 1 |
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CHAN 2 |
OPR |
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EDGE |
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MARKER |
MENU |
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CHAN 2 |
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17.8 cm (7 in)
47.0 cm (18.5 in) 
6.4 cm 
(2.5 in)
For Cable
Access
yh003f.eps
Figure 1-2. 5820A Calibrator Dimensional Outline
1-7. General Specifications
Table 1-1. General Specifications
Warmup Time
Settling Time
Standard Interfaces
Temperature Performance
Electromagnetic
Compatibility
Twice the time since last warmed up, to a maximum of 30 minutes
5 seconds or faster for all functions and ranges
IEEE-488 (GPIB), RS-232
Operating: 0 °C to 50 °C
Calibration (tcal): 15 °C to 35 °C
Storage: -20 °C to 70 °C
Designed to operate in Standard Laboratory environments where the Electromagnetic environment is highly controlled. If used in areas with Electromagnetic fields > 1 V/m, there could be errors in output values.
From 80 -252 MHz, the current output is susceptible to a field strength of > 0.165 V/M.
1-6
Introduction and Specifications 1
General Specifications
Temperature Coefficient
Relative Humidity
Altitude
Safety
Interface Impedance
Analog Low Isolation
EMC
Line Power
Power Consumption
Dimensions
Weight
Temperature Coefficient for temperatures outside tcal ±5 °C is 0.1X/°C of 1-year specification.
Operating: < 80 % to 30 °C, < 70 % to 40 °C,< 40 % to 50 °C
Storage: < 95 %, noncondensing
Operating: 3,050 m (10,000 ft) maximum
Nonoperating: 12,200 m (40,000 ft) maximum
Designed to comply with IEC 1010-1 (1992-1); ANSI/ISA-S82.01-1994; CAN/CSA-C22.2 No. 1010.1-92
The 5820A is designed to drive both 50 Ω and 1MΩ loads.
20 V
Complies with EN 61326-1
Line Voltage (selectable): 100 V, 120 V, 220 V, 240 V
Line Frequency: 47 to 63 Hz
Line Voltage Variation: ± 10 % about line voltage setting
250 VA
Height: 17.8 cm (7 inches), standard rack increment, plus 1.5 cm (0.6 inch) for feet on bottom of unit;
Width: 43.2 cm (17 inches), standard rack width Depth: 47.3 cm (18.6 inches) overall.
20 kg (44 pounds)
1-7
5820A
Service Manual
1-8. Volt Specifications
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Table 1-2. Volt Specifications |
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Volt Function |
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DC Signal |
Square Wave Signal [1] |
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1 MΩ |
50 Ω |
1 M Ω |
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Amplitude Characteristics
Range
Resolution
Adjustment Range
range
1mV to 24.999 mV 25 mV to 109.99 mV 110 mV to 2.1999 V 2.2 V to 10.999 V 11 V to 130 V
1-Year Absolute Uncertainty, tcal ± 5 °C
0 V to ± 6.6 V |
0 V to ± 130 V |
±1 mV to |
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± (0.05% |
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of output + |
of output |
of output |
+ 40 µV) |
25 µV) |
+ 40 µV) |
+ 5 µV) [2] |
Sequence |
1-2-5 (e.g., 10 mV, 20 mV, 50 mV) |
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Square Wave Frequency Characteristics
Range
1-Year Absolute Uncertainty, tcal ± 5 °C
Typical Aberration (from 50% of leading/trailing edge)
25 mV to 130 V: within 4 µs
10 mV to 25 mV: within 8 µs
1 mV to 10 mV: within 14 µs
[1] Positive or negative, zero referenced square wave.
10 Hz to 10 kHz
±(0.33 ppm of setting)
<(0.5% of output + 100 µV)
[2] Above 1 kHz, ± (0.25% of output + 40 µV). Assumes connectors and cables are in good condition.
WCaution
Input voltages exceeding 30 V dc may cause damage to the instrument.
1-9. DC Volt Measure Specifications
Table 1-3. DC Volt Measure Specifications
Voltage Range
DCV ± 10 V maximum with 1 mV resolution
Voltage Accuracy
0 to ± 5.99 V - 0.05% ± 1 mV
6 to ± 10 V – 0.25% ± 10 mV
> 1 MΩ input impedance (measure voltage across 1 MΩ input resistor)
1-8
Introduction and Specifications 1
General Specifications
1-10. Edge Specifications
Note
The GHz Option offers a Fast Edge function. The specifications for the
Fast Edge function can be found in Chapter 5.
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Table 1-4. Edge Specifications |
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Edge Characteristics into 50 Ω Load |
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Typical Jitter, edge to trigger
Leading Edge Aberrations[2]
Typical Duty Cycle
1 kHz to 10 MHz
< 3 ps (p-p)
within 2 ns from 50 % of rising edge
2 to 5 ns
5 to 30 ns
after 30 ns
45 % to 55 %
1-Year Absolute Uncertainty, tcal ± 5 °C
+0, -100 ps
± (2 % of output + 200 μV)
± (0.33 ppm of setting)
<(3 % of output + 2 mV)
<(2 % of output + 2 mV)
<(1 % of output + 2 mV)
<(0.5 % of output + 2 mV)
[1]Frequency range above 2 MHz has rise time specification 350 ps typical.
[2]The leading edge aberrations below 250 mV are typical. All readings are referenced to a Tek11801 with an SD26 module or a Tek820 oscilloscope with a 8 GHz bandwidth option.
1-9
5820A
Service Manual
1-11. Leveled Sine Wave Specifications
Note
The GHz Option offers an extended 600 MHz to 2.1 GHz Leveled Sine
Wave range. If the GHz Option is installed, see the Leveled Sine Wave
Specifications (> 600 MHz ) table in Chapter 5.
Table 1-5. Leveled Sine Wave Specifications (£ 600 MHz )
Leveled Sine |
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300 MHz to |
500 MHz to |
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100 MHz |
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300 MHz |
500 MHz |
600 MHz |
Amplitude Characteristics
Range (p-p)
Resolution
5 mV to 5.0 V
< 100 mV: 3 digits
³ 100 mV: 4 digits
Adjustment |
continuously adjustable |
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1-Year Absolute |
± (2 % of |
± (3.5 % of |
± (4 % of |
± (5.5 % of |
± (6 % of |
Uncertainty, |
output + |
output + |
output + |
output + |
output + |
tcal ± 5 °C |
300 mV) |
300 mV) |
300 mV) |
300 mV) |
300 mV) |
Flatness [1] |
not applicable |
± (1.5 % of |
± (2 % of |
± (3.5 % of |
± (4 % of |
(relative to |
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output+ |
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output + |
50 kHz) |
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100 mV) |
100 mV) |
100 mV) |
100 mV) |
Short-Term |
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£ 1 % [2] |
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Amplitude |
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Stability |
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Frequency Characteristics
Resolution
1-Year Absolute Uncertainty, tcal ± 5 °C
10 kHz
±0.33 ppm
Distortion Characteristics [3]
2nd Harmonic
3rd and Higher Harmonics
£-33 dBc
£-38 dBc
[1]As measured near Oscilloscope bandwidth frequency.
[2]Within one hour after reference amplitude setting, provided temperature varies no more than ± 5 °C.
[3]Harmonics above 500 MHz are typical.
1-10
Introduction and Specifications 1
General Specifications
1-12. Time Marker Specifications
Note
If you ordered the GHz Option, the following specification table is superseded by the table with the same heading in Chapter 5.
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Table 1-6. Time Marker Specifications |
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Time Marker into 50 Ω |
5 s to |
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20 ms to |
50 ns to |
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5 ns to 2 |
50 ms |
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100 ns |
20 ns |
10 ns |
ns |
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Wave Shape |
spike or |
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spike, square, |
spike or |
square or |
sine |
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square |
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or 20%-pulse |
square |
sine |
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Typical Output Level |
> 1 V p-p [1] |
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> 1 V p-p [1] |
> 1 V p-p [1] |
>1 V p-p [1] |
> 1 V p-p |
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Typical Jitter (p-p) |
< 10 ppm |
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< 1 ppm |
< 1 ppm |
< 1 ppm |
< 1 ppm |
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Sequence |
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5-2-1 from 5 s to 2 ns (e.g., 500 ms, 200 ms, 100 ms ) |
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Adjustment Range |
At least ± 10 % around each sequence value indicated above. |
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Amplitude Resolution |
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4 digits |
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1-Year Absolute |
± (2.5 ppm |
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± 0.33 ppm |
± 0.33 ppm |
± 0.33 ppm |
± 0.33 ppm |
Uncertainty, tcal ± 5 °C |
+ 5 μHz) [2] |
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[3] |
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[1]Typical rise time of square wave and 20%-pulse (20 % duty cycle pulse) is < 1.5 ns.
[2]With 10 MHz external reference selected, the uncertainty becomes that of the external clock plus 5 μHz.
[3]Time marker uncertainty is ± 50 ppm when measured off of cardinal points:
5 s, 2 s, 1 s, 500 ms, 200 ms, 100 ms, 50 ms, 20 ms, 10 ms, 5 ms, 2 ms, 1 ms, 500 μs, 200 μs, 100μs, 50 μs, 20 μs, 10 μs, 5 μs, 2 μs, 1 μs, 500 ns, 200 ns, 100 ns, 50 ns, 20 ns, 10 ns, 5 ns and 2 ns
1-11
5820A
Service Manual
1-13. Wave Generator Specifications
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Table 1-7. Wave Generator Specifications |
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Wave Generator |
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Square Wave and Sine Wave |
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Triangle Wave |
Characteristics |
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into 50 W or 1 MW |
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into 50 W or 1 MW |
Amplitude |
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Range
1-Year Absolute Uncertainty, tcal ± 5 °C, 10 Hz to 10 kHz
Sequence
Typical DC Offset Range
Ramp Linearity [2]
Frequency
into 1 MW: 1.8 mV to 55 V p-p into 50 W: 1.8 mV to 2.5 V p-p
± (3 % of p-p output + 100 µV)
1-2-5 (e.g., 10 mV, 20 mV, 50 mV)
0 to ± (³40 % of p-p amplitude) [1]
into 1 MW: 1.8 mV to 55 V p-p into 50 W: 1.8 mV to 2.5 V p-p
± (3 % of p-p output + 100 µV)
1-2-5 (e.g., 10 mV, 20 mV, 50 mV)
0 to ± (³40 % of p-p amplitude) [1]
better than 0.1 % 10 Hz to 10 kHz [3]
Range |
0.01 Hz to 100 kHz |
0.01 Hz to 100 kHz |
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Resolution |
4 or 5 digits depending upon |
4 or 5 digits depending upon |
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frequency |
frequency |
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1-Year Absolute Uncertainty, |
± (2.5 ppm + 5 mHz) [4] |
± (2.5 ppm + 5 mHz) [4] |
tcal ± 5 °C [5] |
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[1]The DC offset plus the wave signal must not exceed 30 V rms.
[2]Applies to the 10 % to 90 % of the triangle waveform 500 mV p-p to 10 V p-p.
[3]No specification below 10 Hz or above 10 kHz.
[4]With 10 MHz external reference selected, the uncertainty becomes that of the external clock plus 5 µHz.
[5]Uncertainties below 10 Hz are typical.
[6]Square wave rise/fall time typically less than 500 ns.
1-12
Introduction and Specifications 1
General Specifications
1-14. 1 ns Pulse Generator Specifications
Table 1-8. Pulse Generator Specifications
Pulse Generator Characteristics
Typical Rise/fall Time
Typical Available Amplitudes
Positive pulse into 50 W
£ 500 ps
1.5 V, 600 mV, 150 mV,60 mV,15 mV
Pulse Width
Range [1]
Uncertainty
Pulse Period
Pulse width < 1 ns
1 ns £ Pulse width £ 9.9 ns
10 ns £ Pulse width £ 79.9 ns
80 ns £ Pulse width £ 500 ns
Resolution
1-Year Absolute Uncertainty, tcal ± 5 °C
Pulse Skew with Trigger[3]
Range [2]
Uncertainty [4]
1 ns to 500 ns
5% ± 200 ps
20 ms to 200 ns
20 ms to 200 ns
20 ms to 2 µs
20 ms to 10 µs
4 or 5 digits depending upon frequency and width
± 0.33 ppm
+30 ns to -10ns with 250 ps resolution
± 500 ps
[1]May generate pulses below 1ns but pulse width accuracy is not specified.
[2]Assumes that trigger used in divide by 1 mode. Other divide modes are not specified.
[3]Pulse skew measured from 30% of trigger signal amplitude to 30% of pulse range amplitude.
[4]Uncertainty specification applies only for pulse periods that are 3 µs or greater in duration. Otherwise, skew uncertainty is typical.
1-15. Trigger Signal Specifications (Pulse Function)
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Table 1-9. Trigger Signal Specifications (Pulse Function) |
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Pulse Period |
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Division Ratio |
Amplitude into 50 W |
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Typical Rise Time |
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(p-p) |
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20 ms to 200 ns |
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off/1/10/100 |
³ 1 V |
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£ 2 ns |
Skew between Pulse and Trigger programmable from -10 ns to +30 ns |
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1-16. Trigger Signal Specifications (Time Marker Function)
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Table 1-10. Trigger Signal Specifications (Time Marker Function) |
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Pulse Period |
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Division Ratio [1] |
Amplitude into 50 W (p-p) |
Typical Rise Time |
5 s to 750 ns |
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off/1 |
³ 1 V |
£ 2 ns |
34.9 ms to 7.5 ns |
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off/10 |
³ 1 V |
£ 2 ns |
34.9 ms to 2 ns |
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off/1/10/100 |
³ 1 V |
£ 2 ns |
1-13
5820A
Service Manual
1-17. Trigger Signal Specifications (Edge Function)
Table 1-11. Trigger Signal Specifications (Edge Function)
Edge Signal |
Division |
Typical Amplitude |
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Frequency |
Ratio |
into 50 W (p-p) |
Typical Rise Time |
Typical Lead Time |
1 kHz to 10 MHz |
off/1 |
³ 1 V |
£ 2 ns |
40 ns |
1-18. Trigger Signal Specifications (Square Wave Voltage Function)
Table 1-12. Trigger Signal Specifications (Square Wave Voltage Function)
Edge Signal |
Division |
Typical Amplitude |
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Frequency |
Ratio |
into 50 W (p-p) |
Typical Rise Time |
Typical Lead Time |
10 Hz to 10 kHz |
off/1 |
³ 1 V |
£ 2 ns |
2 ms |
1-19. Trigger Signal Specifications (TV)
Table 1-13. TV Trigger Signal Specifications
Trigger Signal Type
Frame Formats
Polarity
Amplitude into 50 W (p-p)
Line Marker
Parameters
Selectable NTSC, SECAM, PAL, PAL-M
Positive or negative
Adjustable 0 to 1.5 V p-p into 50 ohm load, (±7 % accuracy)
Selectable Line Video Marker
1-20. |
Tunnel Diode Drive Capability |
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Table 1-14. Tunnel Diode Drive Capability |
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TD Pulse Drive |
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Square wave at 100 Hz to 100 kHz with variable amplitude of 60 to 100 V p-p |
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1-21. |
Oscilloscope Input Resistance Measurement Specifications |
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Table 1-15. Oscilloscope Input Resistance Measurement Specifications |
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Scope Input Selected |
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50 W |
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1 MW |
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Measurement Range |
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40 W to 60 W |
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500 kW to 1.5 MW |
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Uncertainty |
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0.1 % |
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0.1 % |
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1-22. Oscilloscope Input Capacitance Measurement Specifications
Table 1-16. Oscilloscope Input Capacitance Measurement Specifications
Scope Input Selected
Measurement Range
Uncertainty
1 MW
5 pF to 50 pF
± (5 % of input + 0.5 pF) [1]
[1] Measurement made within 30 minutes of capacitance zero reference.
1-14
Introduction and Specifications 1
General Specifications
1-23. Overload Measurement Specifications
The Overload test function applies dc or ac (1 kHz square wave) power into the 50 Ω oscilloscope input and monitors the current. A time measurement counter indicates the time duration of the applied overload signal. When the input protection circuit reacts and opens up the 50 Ω load, the calibrator indication is set to ‘off’ on the right hand display. In order to prevent front end damage to the oscilloscope, a limited amount of energy is applied by a user selectable time limit.
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Table 1-17. Overload Measurement Specifications |
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Source |
Typical ‘On’ current |
Typical ‘Off’ current |
Maximum Time Limit DC or |
Voltage |
indication |
indication |
AC (1 kHz) |
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5 V to 9 V |
100 mA to 180 mA |
10 mA |
setable 5 to 60 sec |
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1-24. External Reference Input Specifications
The External Reference Input selection allows the user to provide their own high stability 10 MHz reference clock for the 5820A for all functions except the Wave Generator function. For all other modes, the frequency stability is determined by the external reference stability. The external reference input must be between 1 to 5 V p-p.
1-25. Auxiliary Input Specifications
Maximum input voltage into the auxiliary input is 40 V p-p.
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Table 1-18. Auxiliary Input Performance |
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Channel Configuration |
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Frequency |
Typical Loss |
Typical VSWR |
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1-Channel |
< 600 MHz |
≤ 1.1 dB |
≤ 1.2:1 |
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1-Channel |
600 MHz to 1 GHz |
≤ 1.3 dB |
≤ 1.4:1 |
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1-Channel |
1 |
GHz to 2.0 GHz |
≤ 2.0 dB |
≤1.7:1 |
1-Channel |
2 |
GHz to 3 GHz |
≤ 3.0 dB |
≤ 2.0:1 |
5-Channel |
< 600 MHz |
≤ 1.1 dB |
≤ 1.2:1 |
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5-Channel |
600 MHz to 1 GHz |
≤ 1.3 dB |
≤ 1.4:1 |
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5-Channel |
1 |
GHz to 2.0 GHz |
≤ 2.0 dB |
≤ 1.7:1 |
5-Channel |
2 |
GHz to 3 GHz |
≤ 3.0 dB |
≤ 2.0:1 |
1-26. Current Output Specifications
Table 1-19. Current Output Specifications |
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DC |
Squarewave |
Amplitude (compliance voltage 2 V max) |
± 100 µA to ± 100 mA |
100 µAp-p to 100 mAp-p |
Accuracy |
± (0.25% + 0.5 µA) |
± (0.25% + 0.5 µA) [1] |
Frequency Range |
N/A |
10 Hz to 100 KHz |
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Accuracy |
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2.5 ppm +5 µHz |
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Steps |
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1,2,5 or continuous |
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[1] Amplitude uncertainty for frequency range 45 Hz to 1 kHz at < 120 mV compliance voltage.
1-15
5820A
Service Manual
1-16
Chapter 2
Theory of Operation
|
Title |
Page |
2-1. |
Introduction........................................................................................... |
2-3 |
2-2. |
Voltage Mode ................................................................................... |
2-7 |
2-3. |
Edge Mode........................................................................................ |
2-7 |
2-4. |
Leveled Sine Wave Mode ................................................................ |
2-7 |
2-5. |
Time Marker Mode .......................................................................... |
2-7 |
2-6. |
Wave Generator Mode ..................................................................... |
2-8 |
2-7. |
Pulse Generator ................................................................................ |
2-8 |
2-8. |
Input DC Voltage Measurement Mode ............................................ |
2-8 |
2-9. |
Input Impedance Mode (Resistance) ................................................ |
2-8 |
2-10. |
Input Impedance Mode (Capacitance).............................................. |
2-8 |
2-11. |
Current Module ................................................................................ |
2-9 |
2-12. |
Overload Mode................................................................................. |
2-9 |
2-13. |
Trigger .............................................................................................. |
2-9 |
2-14. |
High Frequency Switching ............................................................... |
2-9 |
2-15. |
5 Channel Option.............................................................................. |
2-9 |
2-16. |
GHz Option Module ......................................................................... |
2-9 |
2-1
5820A
Service Manual
2-2
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