Agilent Technologies 8487D Spezifikationen PDF herunterladen (Seite 105)

Replaceable Parts

Assembly and Disassembly Guidelines

Agilent E4418B/E4419B Service Guide 5-21

Replacing the Rear Panel Power Reference Cable Assembly

(Option 003)

1. Disassemble the power meter down to allow access to the rear panel

connectors. (Refer to “Removing the A4 Comms Assembly”, on page 5-11.)

2. Replace the power reference cable assembly using the replacement kit and

the torques indicated on the following diagrams.

25 lb/in

6 lb/in 9 lb/in

tie wraps

1 2 ... 100 101 102 103 104 105 106 107 108 109 110 ... 143 144

Service Guide 1
Printed in the UK 2
Legal Information 3
Limitation of Warranty 4
Exclusive Remedies 4
Equipment Operation 5
General Safety Considerations 6
Markings 6
IEC 1010-1 Compliance 7
Statement of Compliance 7
User Environment 7
Installation Instructions 7
List of Related Publications 8
Latin America: 10
United States: 10
Sales and Service Offices 11
About this Guide 12
Table of Contents 13
Specifications 17
Power Meter Specifications 19
Accuracy 20
1 mW Power Reference 21
Measurement Speed 22
Zero Drift of Sensors 22
Measurement Noise 23
Settling Time 25
12481632641282565121024 26
Power Sensor Specifications 28
General Characteristics 30
Environmental Characteristics 31
Dimensions 32
Remote Programming 33
Non-Volatile Memory 33
Performance Tests 35
Equipment Required 37
Performance Test Record 38
Calibration Cycle 38
Test Procedures 38
Zero Test 39
Procedure 40
Test Setup 42
Test Procedure 2 45
Equipment 45
Power Reference Level Test 49
Description 54
Adjustments 59
Post-Repair Adjustments 61
Measurement Uncertainty 68
Theory of Operation 71
A2 Processor Assembly 74
A3 Front Panel Assembly 77
A4 Comms Assembly 78
A5 Daughter Assembly 79
A6 Measurement Assembly 80
Assembly Part Numbers 87
Power Supply Assembly Types 89
Front Panel Connector Repair 90
Firmware Upgrades 91
Removing the A7 Fan Assembly 97
Replaceable Parts 100
Assembly 102
(Options 002 and 003) 103
(Option 003) 105
Troubleshooting 109
Introduction 110
Appendix A 119
Instrument Accuracy Test 119
Measurement Introduction 120
Uncertainties 121
Define the Measurand 121
Sensitivity Coefficients Ci: 126
Expanded Uncertainty kuc(y): 127
Appendix B 129
Reference Level Test 129
Uncertainty Equation 132
Mismatch 133
Calibration factor 135
Resistance 136
Repeatability 136
Sensitivity Coefficients (Ci) 138
Expanded Uncertainty 140

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