Sign In
Upload
Download
Table of Contents
Contents
Add to my manuals
Delete from my manuals
Share
URL of this page:
HTML Link:
Bookmark this page
Add
Manual will be automatically added to "My Manuals"
Print this page
×
Bookmark added
×
Added to my manuals
Manuals
Brands
Fluke Manuals
Multimeter
8840A
Instruction manual
Fluke 8840A Instruction Manual
Hide thumbs
Also See for 8840A
:
Instruction manual
(182 pages)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
Table Of Contents
181
page
of
181
Go
/
181
Contents
Table of Contents
Troubleshooting
Bookmarks
Table of Contents
Multimeter Safety
Section Guide
Table of Contents
List of Tables
List of Illustrations
Introduction and Specifications
Options and Accessories
Operating Instructions
Installation
Installing the Power-Line Fuse
Connecting to Line Power
Operating Features
Power-Up Features
Front and Rear Panel Features
Line Voltage Selection Setting
Display Features
Error Messages
Overrange Indication
Rack-Mount Kits
Front Panel Features
Rear Panel Features
Diagnostic Self-Tests
Ranging
Triggering
Autorange
Error Codes
Making Measurements
Reading Rates and Noise Rejection
Automatic Setting Time Delay
External Trigger Input
Measuring Voltage and Resistance
Measuring Current
Current Fuse Protection
Offset Measurements
External Cleaning
Remote Programming
Capabilities
Bus Set-Up Procedure
An Overview of Remote Operation
A Note about Examples
Device-Dependent Command Set
Bn (Offset Commands)
IEEE-488 Address Selection
Remote Operation Block Diagram
Cn (Calibration Commands)
Dn (Display Commands)
Fn (Function Commands)
Get Commands
Commands Which Correspond to the Front Panel
G0 (Get Instrument Configuration)
G1 (Get SRQ Mask)
G2 (Get Calibration Prompt)
Output Data Format
G3 (Get User-Defined Message)
G4 (Get Calibration Status)
G5 (Get IAB Status)
G6 (Get YW Status)
N (Numeric Entry Command)
Put Commands
P0 (Put Instrument Configuration)
P1 (Put SRQ Mask)
Status Data
P3 (Put User-Defined Message)
Rn (Range Commands)
Sn (Reading Rate Commands)
Tn (Trigger Mode Commands)
Trigger Selection Logic Diagram
Z0 (Self-Test Command)
? (Single-Trigger Command)
Input Syntax
Definitions
Syntax Rules
Device-Dependent Messages
Output Data
Loading Output Data
Types of Output Data
Numeric Data and Error Messages
Output Priority
Service Requests
The Serial Poll Register
Talk-Only Mode
Address Messages
Universal Commands
Addressed Commands
Timing Considerations
Immediate Mode Commands
Example Programs
Immediate-Mode Commands for Various Controllers
Using the IBM PC
ASCI/IEEE Std 488-1978 Bus Codes
Measurement Tutorial
DC Voltage Measurement
Circuit Loading Error
Input Bias Current Error
Resistance Measurement
2-Wire Ohms
Correcting for Test Lead Resistance in 2-Wire Ohms
Circuit Loading Error Calculation
4-Wire Ohm
Applications of the Ohms Functions
Measuring Input Bias Current Error
Testing Diodes
Testing Electrolytic Capacitors
A Precision Current Source
DC Current Measurement
Reducing Thermal Voltages
AC Voltage and Current
True RMS Measurement
AC-Coupled AC Measurements
Burden Voltage Error Calculation
Waveform Comparison Chart
Combined AC and DC Measurements
Bandwidth
Zero-Input VAC Error
Reduction of Zero-Input Error
Theory of Operation
Overall Functional Description
Detailed Circuit Description
DC Scaling
Overall Functional Block Diagram
DC Scaling (VDC and Ma DC)
VDC Protection
Ma DC Scaling
Analog Filter
Track/Hold Circuit
OHMS Current Source
OHMS Protection
Track/Hold Amplifier
Track/Hold Circuit Configurations
Timing Diagram for One A/D Cycle
OHMS Functions
4-Wire Ohms
Precision Voltage Reference
A/D Converter
Ohms Scaling
Timing/Data Control
Analog-To-Digital Converter
First Remainder-Store Period
Precision DAC
A/D Amplifier
Bootstrap Supplies
Keyboard
Digital Controller
In-Guard Microcomputer
Autozero Period
Digital Controller Block Diagram
Function and Range Control
A/D Control and Computation
Calibration Correction
Keyboard/Display Control
Read/Write Timing Diagrams for Internal Bus
Power Supply
Sample Rates and Reading Rates
Guard Crossing Circuit
Out-Guard Microcomputer
Guard Crossing
Bus Interface Circuitry
Signal Conditioning
Ieee-488 Interface Power Supply
TRUE RMS AC (Option -09)
VAC Scaling
Ma AC Scaling
True RMS AC-To-DC Converter
Maintenance
Performance Test
DC Voltage Test
Recommended Test Equipment
AC Voltage Test
Connections for Kelvin-Varley Voltage Divider
Resistance Test
Low- and MID-Frequency AC Voltage Test
High-Frequency AC Voltage Test
Calibration
Basic Calibration Procedure
Calibration Functions
A/D Calibration
A/D Calibration Test
Offset and Gain Calibration
Advanced Features and Special Considerations
Storing Variable Inputs
Calibrating Individual Ranges
Verifying Calibration
Prompts When Calibrating Individual Ranges
Tolerance Check
AC Calibration at Other Frequencies
Optimizing Use of the 5450A
Remote Calibration
Commands Used During Remote Calibration
Error Numbers Which Are Displayed When Commands Are Not Valid
Remote Erasure
Disassembly Procedure
Example Calibration Program
Example A/D Calibration Program
Case Removal
True RMS AC PCA Removal
IEEE-488 Interface PCA Removal
Main PCA Removal
8840A Disassembly
Front Panel Disassembly
Reassembly Procedure
Internal Fuse Replacement
Removing the Display Window
External Trigger Polarity Selection
Troubleshooting
Overall State Table
Circuitry Tested by the Analog Self-Tests
Self-Test Descriptions
Digital Controller Troubleshooting
In-Guard Microcomputer System
U202 Pin Diagram
Waveforms for In-Guard Troubleshooting Mode
Display System
Analog Control Signals
Waveforms for Display Logic
Evaluating Static Signals
Evaluating Dynamic Signals
Keyboard Wiring
Analog Control Devices
Analog Control Logic States
DC Scaling Troubleshooting
Track/Hold Troubleshooting
Typical Dynamic Control Signals
DC Scaling and Track/Hold Supply Voltages
Ohms Current Source Troubleshooting
Precision Voltage Reference Troubleshooting
Typical Output Waveforms for Track/Hold Circuit (TP103)
A/D Converter Troubleshooting
Output of A/D Amplifier (TP101)
Power Supply Troubleshooting
Waveforms at U101-24 and U101-25
Typical Bus Data Line Waveform
Waveforms at TP102 for Several Inputs on 2V DV Range
IEEE-488 Interface Troubleshooting
Calculating the A/D Reading from TP102 Waveform
Power Supply Voltages
Diagnostic Program
True RMS AC Troubleshooting
I/O Port Configurations
Isolating a Defective AC Stage
Internal Cleaning
Guard Crossing Troubleshooting
Cleaning Printed Circuit Assemblies
AC Signal Tracing
Cleaning after Soldering
Guard Crossing Test Waveforms
List of Replaceable Parts
How to Obtain Parts
Manual Status Information
Newer Instruments
Service Centers
8840A Digital Multimeter
A1 Main PCA
Main PCA, DC Scaling and F/R Switch
Display PCA
Advertisement
Quick Links
1
Introduction and Specifications
Download this manual
Table of
Contents
Previous
Page
Next
Page
1
2
3
4
5
Advertisement
Table of Contents
Troubleshooting
External Trigger Polarity Selection
130
Digital Controller Troubleshooting
136
Waveforms for In-Guard Troubleshooting Mode
138
DC Scaling Troubleshooting
143
Ohms Current Source Troubleshooting
144
A/D Converter Troubleshooting
146
Power Supply Troubleshooting
147
IEEE-488 Interface Troubleshooting
149
True RMS AC Troubleshooting
151
Internal Cleaning
153
Related Manuals for Fluke 8840A
Multimeter Fluke 8840A Instruction Manual
(182 pages)
Multimeter Fluke 8845A User Manual
Digital (103 pages)
Multimeter Fluke 8845A User Manual
Fe 8845a & 8846a users manual (93 pages)
Multimeter Fluke 8845A Calibration Manual
Digital multimeter (112 pages)
Multimeter Fluke 8845A Programmer's Manual
Digital multimeter (102 pages)
Multimeter Fluke 8845A User Manual
(104 pages)
Multimeter Fluke 8845A Manual
Digital multimeter (126 pages)
Multimeter Fluke 8846A Programmer's Manual
(102 pages)
Multimeter Fluke 8846A/C User Manual
(103 pages)
Multimeter Fluke 8842A Instruction Manual
(269 pages)
Multimeter Fluke 8842A Instruction Manual
(191 pages)
Multimeter Fluke 8808A User Manual
(100 pages)
Multimeter Fluke 8808A Datasheet
Extended specifications (8 pages)
Multimeter Fluke 8808A/SU User Manual
(100 pages)
Multimeter Fluke 8860A Operator's Manual
(65 pages)
Multimeter Fluke 80 V Series Calibration Manual
(36 pages)
Related Products for Fluke 8840A
Fluke 8808A
Fluke 88 V
Fluke 8846A
Fluke 8845A
Fluke 8842A
Fluke 8860A
Fluke 88
Fluke 8846A/C
Fluke 8845A/C
Fluke 8808A/SU
Fluke 83
Fluke 8558A
Fluke 8588A
Fluke 87 V/AN
Fluke 8012A
Fluke 8024B
Table of Contents
Print
Rename the bookmark
Delete bookmark?
Delete from my manuals?
Login
Sign In
OR
Sign in with Facebook
Sign in with Google
Upload manual
Upload from disk
Upload from URL
