User ManualTable of Contents45 Dual Display Multimeter1LIMITED WARRANTY & LIMITATION OF LIABILITY2Table of Contents5List of Tables9List of Figures111. Introduction12Introducing the Fluke 45 Dual Display Multimeter12Options and Accessories13Where to go from Here13MULTIMETER SAFETY162. Getting Started18Introduction18Getting Started18Unpacking and Inspecting the Meter18Front Panel and Rear Panel18Adjusting the Handle18Line Power18Turning the Meter on20Using the Pushbuttons20Selecting a Measurement Range22Automatic Input Terminal Selection22Taking Some Basic Measurements22Measuring Voltage, Resistance, or Frequency23Measuring Current23Diode/Continuity Testing23Operating the Meter Under Battery Power (Optional)26Rack Mounting263. Operating the Meter From the Front Panel28Introduction28Front Panel Operations28Display29Primary Display29Secondary Display29Input Terminals31Selecting a Measurement Function32Ranging32Autoranging32Manual Ranging35Measuring Frequency35Frequency Ranging35Frequency Measurement Rates36Measuring Frequency of Current (100 mA and 10A) Inputs36Frequency Sensitivity Selection36Selecting A Function Modifier37REL (Relative Readings) Modifier38dB (Decibels and Audio Power) Modifier39HOLD (Touch Hold) Modifier40MN MX (Minimum Maximum) Modifier40Using Function Modifiers in Combination40Selecting A Measurement Rate (Rate)41Using the ( Button41Using The Compare (Comp) Function43The List and Number Editors43Using the List Editor44Using the Number Editor45Power-Up Configuration46Factory Settings of Power-Up Configuration46Changing the Power-Up Configuration46Calibration474. Applications48Introduction48Using the Dual Display48Using Measurement Functions in Combination49Taking Voltage and Current Measurements Using the Dual Display49Response Times51How the Meter Makes Dual Display Measurements52Updating the Primary and Secondary Displays with a Single Measurement52Updating the Primary and Secondary Displays with Separate Measurements52Update Rate in the Dual Display Mode54External Trigger54Thermal Voltages55When Measuring Resistance56Two-Wire Configuration56Correcting for Test Lead Resistance56True RMS Measurements56Effects of Internal Noise in AC Measurements57Calculated (AC + DC) RMS Measurements57Waveform Comparison (True RMS vs. Average-Responding Meters)575. Operating the Meter Using the Computer Interface60Introduction60Local and Remote Operations60Preparing the Meter for Operations via the RS-232 Interface61Setting Communication Parameters (RS-232)61RS-232 Print-Only Mode62Cabling the Meter to a Host or Printer (RS-232)63Character Echoing and Deletion63Device Clear Using ^C (CNTRL C)63RS-232 Prompts63Preparing the Meter to be Operated via IEEE-488 Interface64IEEE-488 Operating Limitations64Installing the IEEE-488 Interface64Enabling the IEEE-488 Interface64Addressing the Meter64Cabling the Meter to a Host65Getting Started With An Installation Test65Installation Test for RS-232 Operations65Installation Test for IEEE-488 Operations65If Test Fails66How the Meter Processes Input66Input Strings66Input Terminators66Typical IEEE-488 Input Strings67Sending Numeric Values to the Meter67Sending Command Strings to the Meter67How the Meter Processes Output70Triggering Output70External Triggering from the Front Panel70Setting the Trigger Type Configuration71External Triggering via the Computer Interface71Service Requests (IEEE-488 Only and Status Registers72Event Status and Event Status Enable Registers75Status Byte Register76Reading the Status Byte Register76Service Request Enable Register77Computer Interface Command Set78IEEE-488 Capabilities and Common Commands78Function Commands and Queries81Function Modifier Commands and Queries81Range and Measurement Rate Commands and Queries84Measurement Queries85Compare Commands and Queries86Trigger Configuration Commands86Miscellaneous Commands and Queries87RS-232 Remote/Local Configurations88Sample Program Using the RS-232 Computer Interface89Sample Programs Using the IEEE-488 Computer Interface906. Maintenance95Introduction95Cleaning95Line Fuse95Current Input Fuses96Testing Current Input Fuses96Replacing the 100 mA Input Fuse97Replacing the 10 A Input Fuse97Self-Test Diagnostics and Error Codes98Performance Tests98Service99Replacement Parts101Appendices103A Specifications105B ASCII/IEEE-488 Bus Codes117C IEEE-488.2 Device Documentation Requirements119Size: 2.27 MBPages: 122Language: EnglishOpen manual
User ManualTable of Contents45 Dual Display Multimeter1LIMITED WARRANTY & LIMITATION OF LIABILITY2Table of Contents4List of Tables7List of Figures91. Introduction10Introducing the Fluke 45 Dual Display Multimeter10Options and Accessories11Where to go from Here11MULTIMETER SAFETY142. Getting Started15Introduction15Getting Started15Unpacking and Inspecting the Meter15Front Panel and Rear Panel15Adjusting the Handle15Line Power15Turning the Meter on17Using the Pushbuttons17Selecting a Measurement Range19Automatic Input Terminal Selection19Taking Some Basic Measurements19Measuring Voltage, Resistance, or Frequency20Measuring Current20Diode/Continuity Testing20Operating the Meter Under Battery Power (Optional)23Rack Mounting233. Operating the Meter From the Front Panel25Introduction25Front Panel Operations25Display26Primary Display26Secondary Display26Input Terminals28Selecting a Measurement Function29Ranging29Autoranging29Manual Ranging32Measuring Frequency32Frequency Ranging32Frequency Measurement Rates33Measuring Frequency of Current (100 mA and 10A) Inputs33Frequency Sensitivity Selection33Selecting A Function Modifier34REL (Relative Readings) Modifier35dB (Decibels and Audio Power) Modifier36HOLD (Touch Hold) Modifier37MN MX (Minimum Maximum) Modifier37Using Function Modifiers in Combination37Selecting A Measurement Rate (Rate)38Using the ( Button38Using The Compare (Comp) Function40The List and Number Editors40Using the List Editor41Using the Number Editor42Power-Up Configuration43Factory Settings of Power-Up Configuration43Changing the Power-Up Configuration43Calibration444. Applications45Introduction45Using the Dual Display45Using Measurement Functions in Combination46Taking Voltage and Current Measurements Using the Dual Display46Response Times48How the Meter Makes Dual Display Measurements49Updating the Primary and Secondary Displays with a Single Measurement49Updating the Primary and Secondary Displays with Separate Measurements49Update Rate in the Dual Display Mode51External Trigger51Thermal Voltages52When Measuring Resistance53Two-Wire Configuration53Correcting for Test Lead Resistance53True RMS Measurements53Effects of Internal Noise in AC Measurements54Calculated (AC + DC) RMS Measurements54Waveform Comparison (True RMS vs. Average-Responding Meters)545. Operating the Meter Using the Computer Interface57Introduction57Local and Remote Operations57Preparing the Meter for Operations via the RS-232 Interface58Setting Communication Parameters (RS-232)58RS-232 Print-Only Mode59Cabling the Meter to a Host or Printer (RS-232)60Character Echoing and Deletion60Device Clear Using ^C (CNTRL C)60RS-232 Prompts60Preparing the Meter to be Operated via IEEE-488 Interface61IEEE-488 Operating Limitations61Installing the IEEE-488 Interface61Enabling the IEEE-488 Interface61Addressing the Meter61Cabling the Meter to a Host62Getting Started With An Installation Test62Installation Test for RS-232 Operations62Installation Test for IEEE-488 Operations62If Test Fails63How the Meter Processes Input63Input Strings63Input Terminators63Typical IEEE-488 Input Strings64Sending Numeric Values to the Meter64Sending Command Strings to the Meter64How the Meter Processes Output67Triggering Output67External Triggering from the Front Panel67Setting the Trigger Type Configuration68External Triggering via the Computer Interface68Service Requests (IEEE-488 Only and Status Registers69Event Status and Event Status Enable Registers72Status Byte Register73Reading the Status Byte Register73Service Request Enable Register74Computer Interface Command Set75IEEE-488 Capabilities and Common Commands75Function Commands and Queries78Function Modifier Commands and Queries78Range and Measurement Rate Commands and Queries81Measurement Queries82Compare Commands and Queries83Trigger Configuration Commands83Miscellaneous Commands and Queries84RS-232 Remote/Local Configurations85Sample Program Using the RS-232 Computer Interface86Sample Programs Using the IEEE-488 Computer Interface876. Maintenance92Introduction92Cleaning92Line Fuse92Current Input Fuses93Testing Current Input Fuses93Replacing the 100 mA Input Fuse94Replacing the 10 A Input Fuse94Self-Test Diagnostics and Error Codes95Performance Tests95Service96Replacement Parts98Appendices100A Specifications102B ASCII/IEEE-488 Bus Codes114C IEEE-488.2 Device Documentation Requirements115Size: 2.26 MBPages: 118Language: EnglishOpen manual
