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E1412A
Keysight E1412A Manuals
Manuals and User Guides for Keysight E1412A. We have
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Keysight E1412A manuals available for free PDF download: User's Manual And Scpi Programming Manual, Service Manual
Keysight E1412A User's Manual And Scpi Programming Manual (243 pages)
6 1/2 Digit Multimeter
Brand:
Keysight
| Category:
Multimeter
| Size: 4.92 MB
Table of Contents
Table of Contents
7
Table of Contents
17
Keysight E1412A Multimeter Module Setup
19
Using this Chapter
19
General Information
19
Setting the Module Address Switch
20
Interrupt Priority
22
Setting the Line Frequency Reference
22
Checking the Line Frequency Reference
22
Multimeter Functional Connections
24
Initial Operation
28
Programming the Multimeter
28
Keysight E1412A Multimeter Application Information
31
Using this Chapter
31
Measurement Tutorial
31
DC Voltage Measurements
31
Thermal EMF Errors
31
Loading Errors (DC Volts)
32
Leakage Current Errors
32
Rejecting Power Line Noise Voltages
33
Common Mode Rejection (CMR)
34
Noise Caused by Magnetic Loops
34
Noise Caused by Ground Loops
34
Resistance Measurements
36
4-Wire Ohms Measurements
36
Power Dissipation Effects
37
Settling Time Effects
38
Errors in High Resistance Measurements
38
Making High-Speed DC and Resistance Measurements
38
DC Current Measurement Errors
39
True RMS AC Measurements
39
Crest Factor Errors (Non-Sinusoidal Inputs)
40
Loading Errors (Ac Volts)
41
AC Measurements below Full Scale
41
Function and Range Change Internal Offset Correction
41
Low-Level Measurement Errors
42
AC Turnover Errors
43
AC Current Measurement Errors
44
Making High-Speed AC Voltage or Current Measurements
44
DC Blocking Circuitry
44
Frequency and Period Measurement Errors
45
Measurement Configuration
45
AC Signal Filter
45
DC Input Resistance
46
Resolution
46
Integration Time
47
Autozero
48
Ranging
48
Math Operations (Calculate Subsystem)
50
Average Function
50
NULL (Relative) Function
50
Two Ways to Store the NULL Offset Value
51
Db Measurements
51
Storing the Db Reference Value
52
Dbm Measurements
52
Storing the Dbm Reference Resistance Value
52
Limit Function
53
Triggering the Multimeter
54
The Trigger Source
56
Checking the Trigger Source
57
External Triggering
57
Internal Triggering
57
Bus Triggering
58
The Wait-For-Trigger State
58
The Trigger Count
59
Example: Setting the Trigger Count
59
Checking the Trigger Count
59
Inserting a Trigger Delay
60
Example: Inserting a Trigger Delay
60
Default Delays
61
Querying the Delay Time
63
The Sample Count
63
Example: Setting the Sample Count
63
Checking the Sample Count
64
E1412A Multimeter Application Examples
65
VTL Software (VISA)
65
Example Programs
65
Visual Basic Programs
66
Hardware Used
66
Making Multimeter Measurements
66
Measure Command
67
READ? Command
67
INIT and FETC? Commands
67
Measurement Format
67
MEASURE1 Source Code File
68
MEASURE2 Source Code File
68
MEASURE3 Source Code File
69
MEASURE4 Source Code File
71
Synchronizing the Multimeter with a Switch Module
72
E1412A SCAN Source Code File
75
Multimeter Status System Examples
77
SYNCHOPC Source Code File
79
SYNCHMAV Source Code File
80
LIMITTST Source Code File
81
VEE Programming Example
82
Multimeter Command Reference
85
Using this Chapter
85
Command Types
85
Common Command Format
85
SCPI Command Format
85
Command Separator
86
Abbreviated Commands
86
Implied Commands
86
Parameters
87
Linking Commands
88
Multimeter Range and Resolution Tables
89
SCPI Command Reference
91
Abort
91
Subsystem Syntax
91
Average:average
93
Average:count
93
Average:maximum
93
Average:minimum
94
Db:reference
94
Dbm:reference
95
Function
95
Limit:lower
96
Example
96
Limit:lower
97
Limit:upper
97
Null:offset
97
State
98
Calibration
99
Subsystem Syntax
99
Count
99
Lfrequency
100
Secure:code
100
Secure:state
101
String
102
Value
103
Zero:auto
104
Calibration
105
Configure
106
Subsystem Syntax
106
Current:ac
107
Current[:DC]
109
Frequency
110
Fresistance
110
Period
112
Resistance
112
Voltage:ac
113
[:Voltage[:DC]]
115
[:Voltage[:DC]]:Ratio
116
Configure
118
Subsystem Syntax
118
Data
119
Subsystem Syntax
119
Points
119
Fetch
120
Subsystem Syntax
120
Initiate
122
Subsystem Syntax
122
[:Immediate]
122
Input
124
Subsystem Syntax
124
Impedance:auto
124
Measure
126
Subsystem Syntax
126
Current:ac
127
Current[:DC]
128
Frequency
129
Fresistance
129
Period
131
Resistance
131
Voltage:ac
133
[:Voltage[:DC]]
134
[:Voltage[:DC]]:Ratio
135
Output
137
Subsystem Syntax
137
Ttltrg[:State]
137
Read
139
Subsystem Syntax
139
Sample
141
Subsystem Syntax
141
Count
141
[Sense:]
143
Subsystem Syntax
143
Function
145
Current:ac:range
146
Current:ac:range:auto
147
Current:ac:resolution
148
Current[:DC]:Aperture
149
Current[:DC]:Nplc
150
Current[:DC]:Range
151
Current[:DC]:Range:auto
152
Current[:DC]:Resolution
153
Detector:bandwidth
154
Frequency:aperture
156
Frequency:voltage:range
156
Frequency:voltage:range:auto
157
Fresistance:aperture
158
Fresistance:nplc
160
Fresistance:range
161
Fresistance:range:auto
162
Fresistance:resolution
163
Period:aperture
164
Period:voltage:range
165
Period:voltage:range:auto
166
Resistance:aperture
167
Resistance:nplc
168
Resistance:range
169
Resistance:range:auto
171
Resistance:resolution
172
Voltage:ac:range
173
Voltage:ac:range:auto
175
Voltage:ac:resolution
176
Voltage[:DC]:Aperture
177
Voltage[:DC]:Nplc
178
Voltage[:DC]:Range
179
Voltage[:DC]:Range:auto
181
Voltage[:DC]:Resolution
182
Zero:auto
183
Status
185
Subsystem Syntax
185
Preset
185
Questionable:condition
185
Questionable:enable
186
Questionable[:Event]
186
System
188
Subsystem Syntax
188
Error
188
Version
188
Trigger
190
Subsystem Syntax
190
Count
190
Delay
191
Delay:auto
192
Source
194
IEEE 488.2 Common Command Quick Reference
197
Cls
198
ESE and *ESE
198
Esr
199
Idn
199
Opc
199
Rst
200
SRE and *SRE
200
Stb
201
Tst
202
Wai
202
SCPI Command Quick Reference
203
A E1412A Multimeter Specifications
209
DC Characteristics
209
Accuracy Specifications ± (% of Reading + % of Range) [1]
209
Measuring Characteristics
210
AC Characteristics
212
CCXII
212
Measuring Characteristics
213
Operating Characteristics
214
Frequency and Period Characteristics
216
Accuracy Specifications ±(% of Reading) [1] [4]
216
Measuring Characteristics
216
Operating Characteristics [5]
217
General Specifications
218
To Calculate Total Measurement Error
219
Understanding the "% of Reading" Error
219
Understanding the "% of Range" Error
220
Total Measurement Error
220
Error Example
220
Interpreting Multimeter Specifications
221
Number of Digits and Overrange
221
Sensitivity
221
Resolution
221
Accuracy
222
Transfer Accuracy
222
24-Hour Accuracy
222
90-Day and 1-Year Accuracy
223
Temperature Coefficients
223
Configuring for High Accuracy Measurements
223
DC Voltage, DC Current, and Resistance Measurements
223
AC Voltage and AC Current Measurements
223
Frequency and Period Measurements
223
E1412A Special Function and Range Commands (Non-SCPI )
234
Speed Advantage Using the Special Non-SCPI Commands
235
(F1-F4 and R1-R7)
235
E1412A Resolution Using Special Functions and Ranges
236
Resolution Example
236
General Guidelines for Increasing Measurement Speed
237
Avoid Function Changes
237
Avoid Aperture Changes
237
Minimize the Number of Command/Response Sessions
237
Set Autozero to ONCE or off
238
Turn Autorange off
238
Decrease Aperture Time or Nplcs
239
Setting the Resolution
239
Store the Readings in Multimeter RAM Instead of Sending Them Directly to the Computer
239
Init;:Fetch
239
Read
240
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Keysight E1412A Service Manual (119 pages)
6 1/2 Digit Multimeter
Brand:
Keysight
| Category:
Multimeter
| Size: 3.4 MB
Table of Contents
Table of Contents
7
1 General Information
13
Safety Considerations
13
Warnings and Cautions
14
Multimeter Description
15
Multimeter Serial Numbers
15
Multimeter Options
15
Recommended Test Equipment
16
Introduction
17
Initial Inspection
17
Preparation for Use
18
Environment
18
Shipping the Multimeter
18
Multimeter Specifications
19
2 Operating Instructions
19
Introduction
19
Multimeter Operation
19
Preventive Maintenance
19
Warnings and Cautions
20
Cleaning Procedure
20
Functional Test (Self Test)
21
Self-Test Procedure
21
Example: Self-Test
21
3 Verification Tests
23
Introduction
23
Recommended Test Equipment
23
300Vac (50 Khz) Testing
23
Test Conditions
24
Verification Tests
25
Recording Your Test Results
25
Performance Verification Test Programs
25
C Programs
25
Project Type: Project Files
25
Memory Model: Directory Paths
26
Visual Basic Programs
26
Project Files
26
Windows 3.1 Use of the VISA.BAS File
26
Executable Files (.EXE)
26
Printing Results
27
Test Frequency
27
Functional Test
28
Functional Test Procedure
28
Example: Self-Test
28
Quick Verification Tests
29
Performance Verification
30
Zero Offset Verification
30
DC Gain Verification
32
DC Voltage Gain Verification
33
4-Wire Resistance Gain Verification
33
2-Wire Resistance Gain Verification
34
DC Current Gain Verification
35
AC Voltage Gain Verification
36
AC Current Gain Verification
38
Frequency Gain Verification Test Procedure
39
Optional AC Voltage Gain Verification
40
Performance Test Record
41
Multimeter Accuracy
41
Measurement Uncertainty
41
Test Accuracy Ratio (TAR)
41
4 Adjustments
47
Introduction
47
Closed-Cover Electronic Calibration
47
Keysight Technologies Calibration Services
47
Calibration Interval
47
Automating Adjustment Procedures
48
Calibration Command Summary
48
Calibration Security Code
48
Check Calibration Security State
49
Example
49
Changing the Security Code
49
Unsecuring the Multimeter Without the Security Code
50
Calibration Count (Cal:count?)
51
Calibration Message
51
Aborting an Adjustment in Progress
51
Adjustment Procedures
52
Adjustment Conditions
52
General Procedure
52
Zero Adjustment
53
DC Voltage Gain Adjustment
55
4-Wire Ohms Gain Adjustment
57
2-Wire Ohms Gain Adjustment
60
Test Lead Resistance
60
DC Current Gain Adjustment
61
AC Voltage Gain
63
AC Current Gain Verification
65
Frequency Gain Adjustment
65
Calibration Command Summary
67
Subsystem Syntax
67
Count
67
Comments
67
Example
67
Lfrequency
67
Example
68
Lfrequency
68
Comments
68
Secure:code
68
Example
69
Secure:state
69
Parameters
69
Comments
69
String
70
Parameters
70
Comments
70
Example
70
Value
71
Parameters
71
Comment
71
Example
71
Zero:auto
71
Parameters
72
Comments
72
Zero:auto
72
Calibration
73
Comments
73
5 Keysight E1412A Replaceable Parts
75
Introduction
75
Exchange Assemblies
75
Ordering Information
75
6 Backdating
79
7 Service
81
Introduction
81
Equipment Required
81
Service Aids
81
Troubleshooting
82
Identifying the Problem
82
Self-Test Procedures
82
Power-On Self-Test
82
Self-Test Errors
83
Self-Test Descriptions
84
Operator Errors
87
Unit Does Not Operate Properly
87
Unit Reports an Error between 740 and 748
87
Unit Fails Self-Test
87
Current Input Is Inoperative
87
Readings Indicate OVERLOAD
87
Readings Are Inaccurate
87
Readings Show Excessive Noise
88
Readings Indicate Zero with any Input Applied
88
Catastrophic Failure
88
Performance out of Specification
88
To Replace the Current Input Fuse
88
To Replace the +12V Fuse
88
To Replace the +5V Fuse
89
Inspecting Assemblies
90
Check for Heat Damage
90
Check for Correct Address Switch Setting
90
Inspect Multimeter Front Panel/Pc Assembly for Damage
90
Repair/Maintenance Guidelines
91
Electrostatic Discharge (ESD) Precautions
91
E1412A Module Disassembly
91
E1412A Module Reassembly
93
Input Terminal Replacement
94
BNC Connector Replacement
95
Soldering Printed Circuit Boards
96
Post-Repair Safety Checks
96
A E1412A Multimeter Specifications
97
DC Characteristics
97
Accuracy Specifications ± (% of Reading + % of Range) [1]
97
Measuring Characteristics
98
DC Voltage
98
Resistance
98
DC Current
98
DC:DC Ratio
98
AC Characteristics
100
Accuracy Specifications ± (% of Reading + % of Range) [1]
100
Measuring Characteristics
101
Operating Characteristics
102
Frequency and Period Characteristics
103
Accuracy Specifications ±(% of Reading) [1] [4]
104
Measuring Characteristics
104
Operating Characteristics [5]
105
General Specifications
106
To Calculate Total Measurement Error
107
Understanding the "% of Reading" Error
107
Understanding the "% of Range" Error
107
Total Measurement Error
107
Error Example
108
Interpreting Multimeter Specifications
108
Number of Digits and Overrange
109
Sensitivity
109
Resolution
109
Accuracy
110
Transfer Accuracy
110
24-Hour Accuracy
110
90-Day and 1-Year Accuracy
111
Temperature Coefficients
111
Configuring for High Accuracy Measurements
111
DC Voltage, DC Current, and Resistance Measurements
111
AC Voltage and AC Current Measurements
111
Frequency and Period Measurements
111
B Keysight E1412A Multimeter Error Messages
112
Execution Errors
112
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