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E4417A
Keysight Technologies E4417A User Manual
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E4416A/E4417A Power Meters
Service Guide
85
4
Theory of Operation
Intr
oduction
86
A1 Power Supply
87
A2 Pr
ocessor Assemb
ly
88
A3 Fr
ont Panel Assem
bly
91
A4 Comms Assembly
92
A5 Daughter Assemb
ly
93
A6 Measur
ement Assembly
94
Functional B
lock Dia
gram
98
77
79
Table of Contents
Default Chapter
2
Declaration of Conformity
2
Certification
3
Warranty
3
Limitation of Warranty
4
Exclusive Remedies
4
Warnings and Cautions
4
Safety Symbols
5
Personal Safety Considerations
6
General Safety Considerations
6
Regulatory Markings
7
IEC 1010-1 Compliance
8
Recommended Calibration Interval
8
Returning Your Power Meter for Service
9
Package the Power Meter for Shipment
9
About this Guide
11
Table of Contents
12
Safety Information
2
1 Characteristics and Specifications
19
2 Performance Tests
20
Introduction
21
Equipment Required
21
Performance Test Record
22
Calibration Cycle
22
Test Procedures
22
Thermistor Mount Option
22
Zero Test
23
Specification
23
Description
23
Equipment
23
Test Setup
24
Procedure
24
Instrument Accuracy (Normal Path) Test
26
Specification
26
Description
26
Equipment
27
Test Setup
27
Figure 2-2 Instrument Accuracy (Normal Path) Test Setup
27
Procedure
28
Instrument Accuracy (Average Path) Test
33
Specification
33
Description
33
Test Procedure 2
37
Equipment
37
Test Setup
38
Procedure
38
Procedure
44
Equipment
44
Test Setup
44
Figure 2-6 Power Reference Level Test Setup
44
Procedure
47
Keysight E-Series Power Sensor Interface Test
47
Description
47
Equipment
47
Procedure
48
Keysight E932X Power Sensor (Average Path) Functional Test
48
Description
48
Equipment
48
Test Setup
48
Figure 2-7 Sensor (Average Path) Functional Test Setup
49
Figure 2-8 Sensor (Average Path) Functional Test Setup with
50
Time Base Accuracy Test
53
Specification
53
Description
53
Equipment
53
Test Setup
53
Procedure
54
Output Standing Wave Ratio (SWR) Test
55
Specification
55
Description
55
Equipment
57
Test Setup
57
Procedure
57
Figure 2-10 Output Standing Wave Ratio Test Setup
57
Performance Test Record
63
3 Adjustments
65
Introduction
66
Safety Considerations
66
Equipment Required
66
Post-Repair Adjustments
67
Power Reference Oscillator Frequency Adjustment
68
Description
68
Equipment
68
Procedure
69
Figure 3-2 A2L9 Adjustment Location
70
Power Reference Oscillator Level Adjustment
71
Description
71
Figure 3-3 Adjustment Setup
72
Equipment
73
Procedure
74
Measurement Uncertainty
76
Display Brightness and Contrast Adjustment
77
Introduction
77
Procedure
77
4 Theory of Operation
78
Introduction
79
A1 Power Supply
80
A2 Processor Assembly
81
A3 Front Panel Assembly
84
A4 Comms Assembly
85
A5 Daughter Assembly
86
A6 Measurement Assembly
87
Average Path Operation
87
Normal Path
88
Ancillary Functions
90
Functional Block Diagram
91
5 Replaceable Parts
94
Introduction
95
Assembly Part Numbers
96
Front Panel Connector Repair
98
Firmware Upgrades
99
Assembly and Disassembly Guidelines
100
Removing the Power Meter Cover
100
Removing the A1 Power Supply Assembly
101
Removing the A2 Processor Assembly
102
Removing the A4 Comms Assembly
104
Removing the A5 Daughter or A6 Measurement Assemblies
106
Removing the A7 Fan Assembly
107
Removing the Power Meter RAM Battery (BT1)
108
Removing the A3 Front Panel Assembly
109
Replacing the Front Panel Power Reference Cable Assembly
113
Replacing the Rear Panel Power Sensor Cable Assemblies (Options 002 and 003)
115
Replacing the Rear Panel Power Reference Cable Assembly (Option 003)
117
Replacing the Rear Panel Recorder Output(S) Cable Assembly
118
Replacing the Chassis Assembly
119
6 Troubleshooting
120
Introduction
121
Suggested Diagnostic Equipment
121
Figure 6-1 Troubleshooting Guide - TTL Output
123
Figure 6-3 Troubleshooting Guide - TTL Output
125
Figure 6-5 Troubleshooting Guide - TTL Inputs
127
Figure 6-7 Troubleshooting Guide - TTL Inputs (Continued)
129
Figure 6-8 Troubleshooting Guide - RS232/422 Interface
130
Keysight 432A Power Meters & 478A Sensors: Additional Information
131
Keysight 432A Power Meters: Additional Information
132
Keysight 478A Sensors: Additional Information
133
Equipment Required for Performance Tests and Adjustments
134
Summary Table
135
Measurement Uncertainty Analysis - Power Reference Level Test
137
Measurement Introduction
138
Define the Measurand
138
Define the Measurement Equation
138
Figure C-1 Measurement Setup
139
Uncertainty Equation
141
Voltage Measurements Uncertainty
141
Mismatch
143
Calibration Factor
144
Sensor Calibration Factor Drift
145
Resistance
145
Repeatability
146
Sensitivity Coefficients (CI)
148
Combined Standard Uncertainty (Uc(Y))
150
Expanded Uncertainty
150
Measuremet Uncertainty Analysis - Instrument Accuracy Test
151
Measurement Introduction
152
Uncertainties
153
Define the Measurand
153
Define the Measurement Equation
153
Sensitivity Coefficients CI
160
Combined Standard Uncertainty Uc(Y)
160
Expanded Uncertainty Kuc(Y)
162
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Keysight Technologies E4417A Specifications
General
Brand
Keysight Technologies
Model
E4417A
Category
Measuring Instruments
Language
English
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