Fluke 45 - Page 10

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Users Manual

6-3. Performance Tests for mA Current Functions ....................................................... 6-7

6-4. Performance Tests for A Current Functions........................................................... 6-7

6-5. Replacement Parts.................................................................................................. 6-7

Main Page

Dual Display Multimeter1
Dual Display Multimeter3
Table of Contents5
List of Tables9
Introduction12
Introducing the Fluke 45 Dual Display Multimeter12
Options and Accessories13
Where to Go from here13
Getting Started18
Introduction18
Unpacking and Inspecting the Meter18
Front Panel and Rear Panel18
Adjusting the Handle18
Line Power18
Turning the Meter on20
Using the Pushbuttons20
Selecting a Measurement Range22
Automatic Input Terminal Selection22
Taking some Basic Measurements22
Measuring Voltage, Resistance, or Frequency23
Measuring Current23
Diode/Continuity Testing23
Operating the Meter under Battery Power (Optional)26
Rack Mounting26
Operating the Meter from the Front Panel28
Introduction28
Front Panel Operations28
Display29
Primary Display29
Secondary Display29
Input Terminals31
Selecting a Measurement Function32
Ranging32
Autoranging32
Manual Ranging35
Measuring Frequency35
Frequency Ranging35
Frequency Measurement Rates36
Measuring Frequency of Current (100 Ma and 10A) Inputs36
Frequency Sensitivity Selection36
Selecting a Function Modifier37
REL (Relative Readings) Modifier38
Db (Decibels and Audio Power) Modifier39
HOLD (Touch Hold) Modifier40
MN MX (Minimum Maximum) Modifier40
Using Function Modifiers in Combination40
Selecting a Measurement Rate (Rate)41
Using the S Button41
Using the Compare (Comp) Function43
The List and Number Editors43
Using the List Editor44
Using the Number Editor45
Power-Up Configuration46
Factory Settings of Power-Up Configuration46
Changing the Power-Up Configuration46
Calibration47
Applications48
Introduction48
Using the Dual Display48
Using Measurement Functions in Combination49
Taking Voltage and Current Measurements Using the Dual Display49
Response Times51
How the Meter Makes Dual Display Measurements52
Updating the Primary and Secondary Displays with a Single Measurement52
Updating the Primary and Secondary Displays with Separate Measurements52
Update Rate in the Dual Display Mode54
External Trigger54
Thermal Voltages55
When Measuring Resistance56
Two-Wire Configuration56
Correcting for Test Lead Resistance56
True RMS Measurements56
Effects of Internal Noise in AC Measurements57
Calculated (AC + DC) RMS Measurements57
Waveform Comparison (True RMS Vs. Average-Responding Meters)57
Operating the Meter Using the Computer Interface60
Introduction60
Local and Remote Operations60
Preparing the Meter for Operations Via the RS-232 Interface61
Setting Communication Parameters (RS-232)61
RS-232 Print-Only Mode62
Cabling the Meter to a Host or Printer (RS-232)63
Character Echoing and Deletion63
Device Clear Using ^C (CNTRL C)63
RS-232 Prompts63
Preparing the Meter to be Operated Via IEEE-488 Interface64
IEEE-488 Operating Limitations64
Installing the IEEE-488 Interface64
Enabling the IEEE-488 Interface64
Addressing the Meter64
Cabling the Meter to a Host65
Getting Started with an Installation Test65
Installation Test for RS-232 Operations65
Installation Test for IEEE-488 Operations65
If Test Fails66
How the Meter Processes Input66
Input Strings66
Input Terminators66
Typical IEEE-488 Input Strings67
Sending Numeric Values to the Meter67
Sending Command Strings to the Meter67
How the Meter Processes Output70
Triggering Output70
External Triggering from the Front Panel70
Setting the Trigger Type Configuration71
External Triggering Via the Computer Interface71
Service Requests72
Event Status and Event Status Enable Registers75
Status Byte Register76
Reading the Status Byte Register76
Service Request Enable Register77
Computer Interface Command Set78
IEEE-488 Capabilities and Common Commands78
Function Commands and Queries81
Function Modifier Commands and Queries81
Range and Measurement Rate Commands and Queries84
Measurement Queries85
Compare Commands and Queries86
Trigger Configuration Commands86
Miscellaneous Commands and Queries87
RS-232 Remote/Local Configurations88
Sample Program Using the RS-232 Computer Interface89
Sample Programs Using the IEEE-488 Computer Interface90
Maintenance95
Introduction95
Cleaning95
Line Fuse95
Current Input Fuses96
Testing Current Input Fuses96
Replacing the 100 Ma Input Fuse97
Replacing the 10 a Input Fuse97
Self-Test Diagnostics and Error Codes98
Performance Tests98
Service99
Replacement Parts101
Appendices103
A Specifications103
BASCII/IEEE-488 Bus Codes103
CIEEE-488.2 Device Documentation Requirements103
Specifications105

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