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U1253B
Agilent Technologies U1253B User's And Service Guide
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Maintenance
5
U1253B User’s and
Service Guide
135
Figure 5-8
Fuse replacement
Fuse 1
Fuse 2
158
160
Table of Contents
Default Chapter
2
Trademark Acknowledgements
2
Safety Symbols
3
General Safety Information
4
Environmental Conditions
7
In this Guide
10
Table of Contents
13
1 Getting Started Tutorial
26
Introducing the Agilent U1253B True RMS OLED Multimeter
26
Adjusting the Tilt-Stand
27
Figure 1-3 Tilt-Stand at Hanging Position
29
The Front Panel at a Glance
30
The Rotary Switch at a Glance
31
Table 1-1 Rotary Switch Description and Functions
31
The Keypad at a Glance
32
Figure 1-4 U1253B Keypad
32
Table 1-2 Keypad Descriptions and Functions
33
The Display at a Glance
35
Table 1-3 General Display Annunciators
35
Table 1-4 Primary Display Annunciators
36
Table 1-5 Secondary Display Annunciators
38
Table 1-6 Analog Bar Range and Counts
40
Selecting Display with the Shift Button
41
Table 1-7 Selecting Display with the Shift Button
41
Selecting Display with the Dual Button
43
Table 1-8 Selecting Display with the Dual Button
43
Selecting Display with the Hz Button
46
Table 1-9 Selecting Display with the Hz Button
46
The Terminals at a Glance
49
Figure 1-5 Connector Terminals
49
Table 1-10 Terminal Connections for Different Measurement
50
The Rear Panel at a Glance
51
Figure 1-6 Rear Panel of U1253B
51
2 Making Measurements
53
Measuring Voltage
54
Measuring AC Voltage
54
Figure 2-1 Measuring AC Voltage
55
Measuring DC Voltage
56
Figure 2-2 Measuring DC Voltage
56
Measuring Current
57
A and Ma Measurement
57
Μa and Ma Measurement
57
Figure 2-3 Measuring Μa and Ma Current
58
Percentage Scale of 4 Ma to 20 Ma
59
Table 2-1 Percentage Scale and Measurement Range
59
Figure 2-4 Measurement Scale of 4 Ma to 20 Ma
60
A (Ampere) Measurement
61
Figure 2-5 a (Ampere) Current Measurement
61
Frequency Counter
62
Figure 2-6 Measuring Frequency
63
Measuring Resistance, Conductance, and Testing Continuity
64
Figure 2-7 Type of Display When Smart
65
Figure 2-8 Measuring Resistance
66
Figure 2-9 Resistance, Audible Continuity, and Conductance
67
Table 2-2 Audible Continuity Measurement Range
68
Figure 2-10 Short Continuity and Open Continuity Test
69
Figure 2-11 Conductance Measurement
70
Testing Diodes
71
Figure 2-12 Measuring the Forward Bias of a Diode
72
Figure 2-13 Measuring the Reverse Bias of a Diode
73
Measuring Capacitance
74
Measuring Temperature
75
Figure 2-14 Surface Temperature Measurement
77
Alerts and Warning During Measurement
78
Voltage Alert
78
Input Warning
79
Figure 2-15 Input Terminal Warning
79
Charge Terminal Alert
80
Figure 2-16 Charge Terminal Alert
80
3 Functions and Features
82
Dynamic Recording
82
Figure 3-1 Dynamic Recording Mode Operation
83
Data Hold (Trigger Hold)
84
Figure 3-2 Data Hold Mode Operation
85
Refresh Hold
86
Figure 3-3 Refresh Hold Mode Operation
87
Null (Relative)
88
Figure 3-4 Null (Relative) Mode Operation
89
Decibel Display
90
Figure 3-5 Dbm Display Mode Operation
91
Figure 3-6 Dbv Display Mode Operation
92
Ms Peak Hold
93
Figure 3-7 1 Ms Peak Hold Mode Operation
94
Data Logging
95
Manual Logging
95
Figure 3-8 Manual (Hand) Logging Mode Operation
96
Figure 3-9 Full Log
96
Interval Logging
97
Figure 3-10 Interval (Time) Logging Mode Operation
98
Reviewing Logged Data
99
Figure 3-11 Log Review Mode Operation
100
Square Wave Output
101
Table 3-1 Available Frequencies for Square Wave Output
101
Figure 3-12 Frequency Adjustment for Square Wave Output
102
Figure 3-13 Duty Cycle Adjustment for Square Wave Output
103
Figure 3-14 Pulse Width Adjustment for Square Wave Output
104
Remote Communication
105
Figure 3-15 Cable Connection for Remote Communication
105
4 Changing the Default Settings
108
Selecting Setup Mode
108
Default Factory Settings and Available Setting Options
109
Table 4-1 Default Factory Settings and Available Setting Options for
109
Figure 4-1 Setup Menu Screens
112
Figure 4-2 Data Hold/Refresh Hold Setup
113
Setting Data Hold/Refresh Hold Mode
113
Figure 4-3 Data Logging Setup
114
Setting Data Logging Mode
114
Figure 4-4 Log Time Setup for Interval (Time) Logging
115
Figure 4-5 Decibel Measurement Setup
116
Setting Db Measurement
116
Figure 4-6 Setting up the Reference Impedance for Dbm Unit
117
Setting Reference Impedance for Dbm Measurement
117
Figure 4-7 Thermocouple Type Setup
118
Setting Temperature Unit
118
Setting Thermocouple Types
118
Figure 4-8 Temperature Unit Setup
119
Figure 4-9 Setting up Percentage Scale Readout
120
Setting Percentage Scale Readout
120
Figure 4-10 Choosing the Sound Used in Continuity Test
121
Sound Setting for Continuity Test
121
Figure 4-11 Minimum Frequency Setup
122
Setting Minimum Measurable Frequency
122
Figure 4-12 Beep Frequency Setup
123
Setting Beep Frequency
123
Setting Auto Power off Mode
124
Figure 4-13 Automatic Power Saving Setup
125
Figure 4-14 Power-On Backlight Setup
126
Setting Power-On Backlight Brightness Level
126
Figure 4-15 Power-On Melody Setup
127
Setting the Power-On Melody
127
Figure 4-16 Power-On Greeting Setup
128
Setting the Power-On Greeting Screen
128
Figure 4-17 Baud Rate Setup for Remote Control
129
Setting Baud Rate
129
Figure 4-18 Parity Check Setup for Remote Control
130
Setting Parity Check
130
Figure 4-19 Data Bits Setup for Remote Control
131
Setting Data Bits
131
Figure 4-20 Echo Mode Setup for Remote Control
132
Setting Echo Mode
132
Figure 4-21 Print Mode Setup for Remote Control
133
Setting Print Mode
133
Figure 4-22 Revision Number
134
Figure 4-23 Serial Number
134
Revision
134
Serial Number
134
Figure 4-24 Voltage Alert Setup
135
Voltage Alert
135
M-Initial
136
Table 4-2 Available Settings for M-Initial
136
Figure 4-25 Setting Initial Measurement Functions
137
Figure 4-26 Navigating between the Initial Functions Pages
138
Figure 4-27 Editing Initial Measurement Function/Range
138
Figure 4-28 Editing Initial Measurement Function/Range and Initial Output Values
139
Figure 4-29 Refresh Rate for Primary Display Readings
140
Smooth Refresh Rate
140
Figure 4-30 Resetting to Default Factory Settings
141
Returning to Default Factory Settings
141
Figure 4-31 Battery Type Selection
142
Setting the Battery Type
142
Figure 4-32 DC Filter
143
Setting the DC Filter
143
5 Maintenance
145
Introduction
146
General Maintenance
146
Battery Replacement
147
Figure 5-1 Rear Panel of the Agilent U1253B True RMS OLED
148
Charging Battery
149
Figure 5-2 Self-Testing Time Display
150
Table 5-1 Battery Voltage and Corresponding Percentage of Charg
150
Figure 5-3 Performing Self-Test
151
Table 5-2 Error Messages
152
Figure 5-4 Charging Mode
153
Figure 5-5 Fully Charged and in the Trickle State
153
Figure 5-6 Battery Charging Procedures
155
Fuse Checking Procedure
156
Figure 5-7 Fuse Checking Procedures
156
Table 5-3 U1253B Measurement Readings for Fuse Checking
157
Fuse Replacement
158
Table 5-4 Fuse Specifications
158
Figure 5-8 Fuse Replacement
159
Troubleshooting
160
Table 5-5 Basic Troubleshooting Procedures
160
6 Performance Tests and Calibration
161
Calibration Overview
162
Closed-Case Electronic Calibration
162
Agilent Technologies' Calibration Services
162
Calibration Interval
162
Other Recommendations for Calibration
163
Recommended Test Equipment
164
Table 6-1 Recommended Test Equipment
164
Basic Operating Tests
165
Testing the Display
165
Figure 6-1 Displaying All OLED Pixels
165
Current Terminals Test
166
Figure 6-2 Current Terminal Error Message
166
Charge Terminals Alert Test
167
Figure 6-3 Charge Terminal Error Message
167
Test Considerations
168
Input Connections
169
Performance Verification Tests
170
Table 6-2 Performance Verification Tests
171
Calibration Security
177
Unsecuring the Instrument for Calibration
177
Figure 6-4 Unsecuring the Instrument for Calibration
179
Changing Calibration Security Code
180
Figure 6-5 Changing the Calibration Security Code
181
Resetting the Security Code to Factory Default
182
Figure 6-6 Resetting Security Code to Factory Default
183
Adjustment Considerations
184
Valid Adjustment Reference Input Values
185
Table 6-3 Valid Adjustment Reference Input Values
185
Calibration from Front Panel
189
Calibration Process
189
Calibration Procedures
190
Figure 6-7 Typical Calibration Process Flow
192
Table 6-4 List of Calibration Items
193
Calibration Count
197
Calibration Error Codes
198
Table 6-5 Calibration Error Codes and Their Respective
198
7 Specifications
199
DC Specifications
200
AC Specifications
203
Table 7-2 Accuracy Specifications ± (% of Reading + Number of LSD) for True RMS AC Voltage
203
Table 7-3 Accuracy Specifications ± (% of Reading + Number of LSD) for True RMS AC Current
203
AC+DC Specifications
205
Table 7-4 Accuracy Specifications ± (% of Reading + Number of LSD) for AC+DC Voltage
205
Table 7-5 Accuracy Specifications
205
Temperature and Capacitance Specifications
207
Temperature Specifications
207
Table 7-6 Temperature Specifications
207
Capacitance Specifications
208
Table 7-7 Capacitance Specifications
208
Frequency Specifications
209
Frequency Sensitivity During Voltage Measurement
209
Table 7-8 Frequency Specifications
209
Table 7-9 Frequency Sensitivity and Trigger Level
209
Frequency Sensitivity During Current Measurement
210
Table 7-10 Sensitivity for Current Measurement
210
Duty Cycle [1] and Pulse Width [2]
211
Table 7-11 Accuracy for Duty Cycle
211
Table 7-12 Accuracy for Pulse Width
211
Frequency Counter Specifications
212
Table 7-13 Frequency Counter (Divide 1) Specifications
212
Table 7-14 Frequency Counter (Divide 100) Specifications
212
Peak Hold (Capturing Changes)
213
Square Wave Output
213
Table 7-15 Peak Hold Specification
213
Table 7-16 Square Wave Output Specifications
213
Operating Specifications
214
Table 7-17 Measurement Rate
214
Table 7-18 Input Impedance
215
General Specifications
216
Measurement Category
219
Measurement Category Definition
219
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Agilent Technologies U1253B Specifications
General
Brand
Agilent Technologies
Model
U1253B
Category
Multimeter
Language
English
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