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®
45
Dual Display Multimeter
Users Manual
PN 855981
January 1989, Rev. 4, 7/97
© 1999 Fluke Corporation, All rights reserved. Printed in USA
All product names are trademarks of their respective companies.
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LIMITED WARRANTY & LIMITATION OF LIABILITY Each Fluke product is warranted to be free from defects in material and workmanship under normal use and service. The warranty period is one year and begins on the date of shipment. Parts, product repairs and services are warranted for 90 days. This warranty extends only to the original buyer or end-user customer of a Fluke authorized reseller, and does not apply to fuses, disposable batteries or to any product which, in Fluke’s opinion, has been misu
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Safety Class This is an IEC safety class 1 (grounded enclosure) product. For safety, the ground wire in the line cord must be connected when operating from AC power. When operated from the optional battery pack, this product meets the safety requirements for a safety class 2 (reinforced insulation) product and does not require grounding for safety. Interference Information This equipment generates and uses radio frequency energy and if not installed and used in strict accordance with the manufac
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Table of Contents Chapter Title Page 1 Introduction ........................................................................................ 1-1 Introducing the Fluke 45 Dual Display Multimeter........................................... 1-1 Options and Accessories.................................................................................... 1-2 Where to go from Here ...................................................................................... 1-2 2 Getting Started ................
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45 Users Manual Measuring Frequency......................................................................................... 3-8 Frequency Ranging........................................................................................ 3-8 Frequency Measurement Rates...................................................................... 3-9 Measuring Frequency of Current (100 mA and 10A) Inputs......................... 3-9 Frequency Sensitivity Selection ...........................................
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Contents (continued) Installing the IEEE-488 Interface .................................................................. 5-5 Enabling the IEEE-488 Interface................................................................... 5-5 Addressing the Meter..................................................................................... 5-5 Cabling the Meter to a Host........................................................................... 5-6 Getting Started With An Installation Test.............
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List of Tables Table Title Page 1-1. Accessories............................................................................................................. 1-2 3-2. Voltage Ranges and Full Scale Values................................................................... 3-6 3-3. Current Ranges and Full Scale Values................................................................... 3-7 3-4. Ohms Ranges and Full Scale Values...................................................................... 3-7
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45 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 vi
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List of Figures Figure Title Page 2-1. Front Panel ............................................................................................................. 2-2 2-2. Rear Panel .............................................................................................................. 2-2 2-3. Adjusting Handle.................................................................................................... 2-3 2-4. Summary of Basic Pushbutton Operations...................................
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Chapter 1 Introduction Introducing the Fluke 45 Dual Display Multimeter Note This manual contains information and warnings that must be followed to ensure safe operation and retain the meter in safe condition. Warning To avoid electric shock or injury, read the "multimeter safety" sheet preceding Chapter 2 before using the meter. The Fluke 45 Dual Display Multimeter (also referred to as "the meter") is a 4/2-digit (30,000 count) meter with a 5-digit (100,000 count) high resolution mode. The me
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45 Users Manual • 100,000, 30,000, and 3,000 selectable count resolution, with display reading speeds of 2.5, 5, and 20 readings per second (rps), respectively. • Built-in self-tests with closed-case calibration (no internal calibration adjustments). O ptions and Accessories Two opti ons are available. These options can be installed in the meter at the factory or by the customer on site: • The IEEE-488 Interface (Option -O5K) provides full programmability, and automated calibration. The IEEE-488
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Introduction Where to go from Here 1 Chapter 2: Getting started Explains how to prepare the meter for operation and get started quickly taking basic measurements from the front panel. Chapter 3: Operating the meter from the front panel Provides a complete description of each operation that can be performed using the push- buttons on the front panel. Chapter 3 is organized so that related operations and functions are grouped together. Chapter 4: Applications Describes how to use the mete
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45 Users Manual 1-4
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MULTIMETER SAFETY The Fluke 45 Dual Display Multimeter has been designed and tested according to IEC Publication 348, Safety Requirements for Electronic Measuring Apparatus. This manual contains information and warnings which must be followed to ensure safe operation and retain the meter in safe condition. Use of this equipment in a manner not specified herein may impair the protection provided by the equipment. The meter is designed for IEC 664, Installation Category II use. It is designed for
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Chapter 2 Getting Started Introduction Chapter 2 explains how to prepare the meter for operation, discusses general operating features, and walks you through the basics of taking some common measurements. Getting Started Unpacking and Inspecting the Meter Carefully remove the meter from its shipping container and inspect it for possible damage or missing items. If the meter is damaged or something is missing, contact the place of purchase immediately. Save the container and packing material in c
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45 Users Manual Primary mA Fuse Secondary Display Receptacle Display DUAL DISPLAY MULTIMETER 45 V REMOTE SMF MAX dB REL AUTO 10A MIN HOLD EXT TRG mA 600V CAT I ! mVDCAC UNCAL mA mV DC AC CAL 1000V CAT I Mk Hz Mk Hz ENABLE 100 COM mA Shift Key FUSE F1 V REL dB 2ND A 500 mA F 250V REF# REF LOCAL FUSED AUTO V A FREQ HOLD MN MX RATE COMP HI LO THRESH ADDR BAUD POWER Reading Modifier Ranging Input Function Rate Buttons Buttons Terminals Buttons aam01f.eps Figure 2-1. Front Panel IEEE-488 Interface Co
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Getting Started Turning the Meter on 2 2. Alternate Viewing Position 1. Viewing Position Pull End Out and Towards You. Then Slide to Left. 4. Removal Position (to Remove, Pull Ends Out) 3. Carrying Position aam03f.eps Figure 2-3. Adjusting Handle If you have not already done so, plug the line cord into the connector on the rear of the meter. The meter will operate on any line voltage between 90 V ac and 264 V ac without adjustment, and any frequency between 45 and 440 Hz. However, it is
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45 Users Manual 2ND (SHIFT BUTTON): 2ND -Press then a FUNCTION BUTTON to Select Function for 2ND Secondary Display. (Refer to Section 3 for other uses of .) -Press to Toggle In and Out of Decibels -Press to Toggle In and Out of Relative Mode FUNCTION MODIFIER BUTTONS FUNCTION BUTTONS: -Press to Select a Function V REL dB 2ND A REF REF# LOCAL AUTO V A FREQ HOLD MN MX RATE COMP HI LO BAUD THRESH ADDR POWER RANGE BUTTONS: AUTO -Press to Step Through -Press to Toggle
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Getting Started Selecting a Measurement Range 2 EXAMPLE: Press to select volts ac for the primary display, then press to select the decibels modifier. • Press multiple buttons simultaneously. EXAMPLE: Press and simultaneously to select true rms volts ac + volts dc (calculated) in the primary display. For more details on the uses of each button, refer to Chapter 3, "OPERATING THE METER FROM THE FRONT PANEL." Selecting a Measurement Range Measurement ranges can be selected automatically by
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45 Users Manual Measuring Voltage, Resistance, or Frequency To measure voltage, resistance, or frequency, press the desired function button and connect the test leads as shown in Figure 2-5. The meter will select the appropriate range in the autorange mode, and an annunciator on the display will indicate measurement units. Note After measuring high voltage to 1000 V dc, errors may occur when making measurements with 1 to 10 µV resolution. Allow up to two minutes prior to making low-level measure
