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Agilent Technologies U2000A User Manual
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69
Agilent T
echnologies
Agilent U2000 USB Power Sensors
Operating and Service Guide
Appendix
Appendix A: Zero Set, Zero
Drift, and
Measurement Noise
70
86
88
Table of Contents
Default Chapter
2
Notices
2
Certification
3
Limitation of Warranty
3
Exclusive Remedies
3
Safety Summary
4
Safety Symbols
5
Regulatory Markings
6
Waste Electrical and Electronic Equipment (WEEE) Directive 20002/96/EC
7
General Safety Information
8
Environment Conditions
9
Table of Contents
13
1 Introduction
19
General Information
20
Product Overview
21
LED Indicator Guide
22
Table 1-1 States of LED Indicator and Its Description
22
Figure 1-1 LED Indicator Sequence Power-Up
23
Principles of Operation
24
Figure 1-2 Block Diagram of the Rf/Microwave USB Power Sensor
26
The U2000 Series USB Power Sensors in Detail
27
Figure 1-3 Simplified Block Diagram of Diode Pair/Attenuator/Diode Pair
27
Getting Started
29
Initial Inspection
29
Package Contents Checklist
29
System Requirements
30
Checking the Power Sensor Firmware
30
Figure 1-4 Agilent IO Libraries Suite
31
Figure 1-5 Power Analysis Manager Instrument Properties Panel
32
Figure 1-6 Calibration Due Date Display
32
Hardware Installation and Configuration
33
Installing Your U2000 Series USB Power Sensor
33
Figure 1-7 Found New Hardware Wizard Window
33
Figure 1-8 Found New Hardware Wizard Driver Installation
34
Figure 1-9 Hardware Installation Warning Message
34
Figure 1-10 Completing Hardware Driver Installations
35
Figure 1-11 USB Device Alias Configuration
35
Verifying Your Connected Power Sensor
36
Figure 1-12 Agilent Connection Expert with List of Instrument I/O on the PC
36
Figure 1-13 Agilent Interactive IO Dialog Box
36
Figure 1-14 Identification of Your Connected Power Sensor Displayed
37
Configuring Your Power Sensor Via Power Analysis Manager
38
2 Making Measurements
39
Power Sensor Configuration Settings
40
Figure 2-1 Auto-Averaging Settings
41
Measurement Accuracy and Speed
42
Setting the Range
42
Table 2-1 Sensor Ranges
42
Measurement Considerations
43
Table 2-2 Range Crossover Values
43
Internal and External Zeroing
45
Figure 2-2 Select Either INT or EXT from the Zero Type Option
46
Power Sweep and Frequency Sweep
47
Step Detection
48
3 Specifications and Characteristics
49
Introduction
50
Specifications
51
Frequency and Power Ranges
51
Connector Type
51
Maximum SWR (25 °C ±10 °C)
52
SWR Plots for U2000 Series USB Power Sensors
53
Figure 3-1 U2000A Typical SWR (25 °C ±10 °C)
53
Figure 3-2 U2001A Typical SWR (25 °C ±10 °C)
54
Figure 3-3 U2002A Typical SWR (25 °C ±10 °C)
54
Figure 3-4 U2004A Typical SWR (25 °C ±10 °C)
55
Figure 3-5 U2000H Typical SWR (25 °C ±10 °C)
55
Figure 3-6 U2001H Typical SWR (25 °C ±10 °C)
56
Figure 3-7 U2002H Typical SWR (25 °C ±10 °C)
56
Figure 3-8 U2000B Typical SWR (25 °C ±10 °C)
57
Figure 3-9 U2001B Typical SWR (25 °C ±10 °C)
57
Maximum SWR (0 °C to 55 °C)
58
Maximum Power
60
Power Accuracy
61
Table 3-1 Power Accuracy (with Exclusions)
61
Figure 3-10 Typical Power Accuracy at 25 °C for U2000/1/2/4A Models1
62
Figure 3-11 Typical Power Accuracy at 25 °C for U2000/1B Models1
62
Figure 3-12 Typical Power Accuracy at 25 °C for U2000/1/2H Models1
63
Switching Point
64
Zero Set, Zero Drift, and Measurement Noise
65
Settling Time
67
Table 3-2 Settling Time for Normal Mode and X2 Mode
67
Table 3-3 Noise Multiplier for Normal Mode and X2 Mode
67
Figure 3-13 U2000 Series Autofilter, Default Resolution, 10 Db Decreasing Power Step (Not Across the Switching Point)
68
Calibration Factor and Reflection Coefficient
69
Cal Factor Uncertainty
70
Trigger
72
Time-Gated Measurements
73
General Characteristics
74
4 Service
76
General Information
76
Cleaning
76
Connector Cleaning
76
Performance Test
77
Standing Wave Ratio (SWR) and Reflection Coefficient (Rho) Performance Test
77
Table 4-1 Power Sensor SWR and Reflection Coefficient for the U2000A
77
Table 4-2 Power Sensor SWR and Reflection Coefficient for the U2001A
77
Table 4-3 Power Sensor SWR and Reflection Coefficient for the U2002A
78
Table 4-4 Power Sensor SWR and Reflection Coefficient for the U2004A
78
Table 4-5 Power Sensor SWR and Reflection Coefficient for the U2000H
78
Table 4-6 Power Sensor SWR and Reflection Coefficient for the U2001H
79
Table 4-7 Power Sensor SWR and Reflection Coefficient for the U2002H
79
Table 4-8 Power Sensor SWR and Reflection Coefficient for the U2000B
79
Table 4-9 Power Sensor SWR and Reflection Coefficient for the U2001B
79
Replaceable Parts
80
Table 4-10 Replaceable Parts
81
Service
82
Troubleshooting
82
Repairing a Defective Sensor
82
Disassembly and Reassembly Procedure
83
Table 4-11 Disassembly Procedure
83
Attenuator Disassembly and Reassembly Procedure for U2000B and U2001B
85
Table 4-12 Attenuator Disassembly Procedure
85
Table 4-13 Attenuator Reassembly Procedure
86
5 Appendix
87
Appendix A: Zero Set, Zero Drift, and Measurement Noise
88
Table 5-1 Zero Set, Zero Drift, and Measurement Noise
88
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Agilent Technologies U2000A Specifications
General
Brand
Agilent Technologies
Model
U2000A
Category
Accessories
Language
English
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