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Service 4

U2000 Series Operating and Service Guide 77

Disassembly and Reassembly Procedure

Disassembly Procedure

Disassemble the power sensor by performing the following steps:

Table 4-11 Disassembly Procedure

CAUTION

Disassemble the power sensor only in a static free workstation. Electrostatic discharge renders the

power sensor inoperative.

1 Remove the top label.

2 Loosen three screws by using

M2 to remove the housing.

3 Replace the defective sensor

module with a new sensor

module. Please refer to

Table 4- 10.

Notices2
Certification3
Limitation of Warranty3
Exclusive Remedies3
Safety Summary4
Safety Symbols5
Regulatory Markings6
Waste Electrical and Electronic Equipment (WEEE) Directive 20002/96/EC7
General Safety Information8
Environmental Conditions9
Table of Contents11
Getting Started19
Introduction20
Figure 3-10 Typical Power Accuracy at 25 °C for U2000/1/2/4A Models120
Figure 3-11 Typical Power Accuracy at 25 °C for U2000/1B Models120
Power Sensor Overview21
LED Indicator Guide22
Table 1-1 States of LED Indicator and Its Description22
Figure 1-1 LED Indicator Sequence During Power-Up23
Principles of Operation24
Figure 1-2 Block Diagram of the Rf/Microwave USB Power Sensor26
The U2000 Series USB Power Sensors in Detail27
Figure 1-3 Simplified Block Diagram of Diode Pair/Attenuator/Diode Pair27
Initial Inspection29
Package Contents Checklist29
Hardware Installation and Configuration30
System Requirements30
Installing Your U2000 Series USB Power Sensor31
Figure 1-4 Found New Hardware Wizard Window31
Figure 1-5 Found New Hardware Wizard Driver Installation32
Figure 1-6 Hardware Installation Warning Message32
Figure 1-7 Completing Hardware Driver Installations33
Figure 1-8 USB Device Alias Configuration33
Verifying Your Connected Power Sensor34
Figure 1-9 Agilent Connection Expert with a List of Instrument I/O on the PC34
Figure 1-10 Agilent Interactive IO Dialog Box34
Figure 1-11 Identification of Your Connected Power Sensor Displayed35
Configuring Your Power Sensor Via Power Analysis Manager36
Checking the Power Sensor Firmware37
Agilent IO Libraries Suite 15.537
Figure 1-12 Agilent IO Libraries Suite37
Agilent N1918A Power Analysis Manager38
Figure 1-13 Power Analysis Manager Instrument Properties Panel38
Figure 1-14 Calibration Due Date Display38
Operating Information39
Measurement Mode40
Average Only Mode40
Normal Mode40
Figure 2-1 Example of Trace Graph Display for GSM Signal41
Figure 2-2 Measurement Gate42
Power Sensor Configuration Settings43
Figure 2-3 Auto-Averaging Settings44
Measurement Accuracy and Speed45
Setting the Range45
Table 2-1 Sensor Ranges45
Measurement Considerations46
Table 2-2 Range Crossover Values46
Internal and External Zeroing48
Figure 2-4 Select Either INT or EXT from the Zero Type Option49
Power Sweep and Frequency Sweep50
Step Detection51
Pulse Power Measurement in Average Only Mode52
Specifications and Characteristics53
Introduction54
Specifications56
Frequency and Power Ranges56
Connector Type56
Maximum SWR (25 °C ±10 °C)57
SWR Plots for U2000 Series USB Power Sensors58
Figure 3-1 U2000A Typical SWR (25 °C ±10 °C)58
Figure 3-2 U2001A Typical SWR (25 °C ±10 °C)59
Figure 3-3 U2002A Typical SWR (25 °C ±10 °C)59
Figure 3-4 U2004A Typical SWR (25 °C ±10 °C)60
Figure 3-5 U2000H Typical SWR (25 °C ±10 °C)60
Figure 3-6 U2001H Typical SWR (25 °C ±10 °C)61
Figure 3-7 U2002H Typical SWR (25 °C ±10 °C)61
Figure 3-8 U2000B Typical SWR (25 °C ±10 °C)62
Figure 3-9 U2001B Typical SWR (25 °C ±10 °C)62
Maximum SWR (0 °C to 55 °C)63
Maximum Power65
Power Accuracy66
Table 3-1 Average Only Mode Power Accuracy (with Exclusions)66
Table 3-2 Normal Mode Power Accuracy1, (with Exclusions)66
Figure 3-12 Typical Power Accuracy at 25 °C for U2000/1/2H Models68
Switching Point69
Table 3-3 Switching Point69
Zero Set, Zero Drift, and Measurement Noise71
Table 3-4 Noise Multiplier for Average Only Mode73
Settling Time77
Table 3-5 Settling Time for Normal and X2 Speed77
Figure 3-13 Settling Time with Auto Filter, Default Resolution, and a 10 Db Decreasing Power Step (Not Across the Switching Point)78
Calibration Factor and Reflection Coefficient79
Cal Factor Uncertainty80
Trigger83
Normal Mode Key Specifications and Characteristics84
General Characteristics85
Service87
General Information88
Cleaning88
Connector Cleaning88
Performance Test89
Standing Wave Ratio (SWR) and Reflection Coefficient (Rho) Performance Test89
Table 4-1 Power Sensor SWR and Reflection Coefficient for the U2000A89
Table 4-2 Power Sensor SWR and Reflection Coefficient for the U2001A89
Table 4-3 Power Sensor SWR and Reflection Coefficient for the U2002A90
Table 4-4 Power Sensor SWR and Reflection Coefficient for the U2004A90
Table 4-5 Power Sensor SWR and Reflection Coefficient for the U2000H90
Table 4-6 Power Sensor SWR and Reflection Coefficient for the U2001H91
Table 4-7 Power Sensor SWR and Reflection Coefficient for the U2002H91
Table 4-8 Power Sensor SWR and Reflection Coefficient for the U2000B91
Table 4-9 Power Sensor SWR and Reflection Coefficient for the U2001B91
Replaceable Parts92
Table 4-10 Replaceable Parts93
Service94
Troubleshooting94
Repairing a Defective Sensor94
Disassembly and Reassembly Procedure95
Table 4-11 Disassembly Procedure95
Attenuator Disassembly and Reassembly Procedure for U2000B and U2001B97
Table 4-12 Attenuator Disassembly Procedure97
Table 4-13 Attenuator Reassembly Procedure98
Appendix99
Appendix A: Zero Set, Zero Drift, and Measurement Noise100
Table 5-1 Zero Set, Zero Drift, and Measurement Noise for Average Only Mode100

Brand	Agilent Technologies
Model	U2000 Series
Category	Accessories
Language	English

Agilent Technologies U2000 Series User Manual

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