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List of Tables Table Title Page 1-1. Safety Information................................................................................................................. 1-2 1-2. International Electrical Symbols............................................................................................1-4 2-1. Rotary Switch Selections ...................................................................................................... 2-6 2-2. Pushbuttons.........................................
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Model 187 & 189 Users Manual vi
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List of Figures Figure Title Page 2-1. AC Volts Display ................................................................................................................... 2-2 2-2. Rotary Switch........................................................................................................................ 2-4 2-3. Pushbuttons.......................................................................................................................... 2-5 2-4. Display Features.................
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Model 187 & 189 Users Manual 3-10. Temperature Measurement................................................................................................... 3-15 3-11. AC Current Measurement...................................................................................................... 3-19 3-12. DC Current Measurement .....................................................................................................3-21 3-13. Functions Allowing Frequency Measurement....................
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Chapter 1 Before You Start Safety Information Contacting Fluke The Fluke Model 187 and Model 189 True RMS To order accessories, receive assistance, or locate the Multimeters (hereafter referred to as the “meter”) comply nearest Fluke distributor or Service Center, call: with: USA: 1-888-99-FLUKE (1-888-993-5853) • EN61010.1:1993 Canada: 1-800-36-FLUKE (1-800-363-5853) • ANSI/ISA S82.01-1994 Europe: +31 402-678-200 • CAN/CSA C22.2 No. 1010.1-92 Japan: +81-3-3434-0181 • 1000V Overvoltage Categ
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Model 187 & 189 Users Manual Table 1-1. Safety Information Warning To avoid possible electric shock or personal injury, follow these guidelines: • Do not use the meter if it is damaged. Before you use the meter, inspect the case. Look for cracks or missing plastic. Pay particular attention to the insulation surrounding the connectors. • Inspect the test leads for damaged insulation or exposed metal. Check the test leads for continuity. Replace damaged test leads before you use the meter. • If t
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Before You Start Safety Information 1 Table 1-1. Safety Information (cont.) Warning • When using the probes, keep your fingers behind the finger guards on the probes. • Connect the common test lead before you connect the live test lead. When you disconnect test leads, disconnect the live test lead first. • Remove test leads from the meter before you open the battery door. • Do not operate the meter with the battery door or portions of the cover removed or loosened. • To avoid false readings, wh
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Model 187 & 189 Users Manual Symbols Symbols used on the meter and in this manual are explained in Table 1-2. Table 1-2. International Electrical Symbols AC (Alternating Current) Earth ground DC (Direct Current) Fuse AC and DC Double insulated Battery Important information Complies with relevant Canadian Complies with European Union directives Standards Association directives Inspected and licensed by TÜV Product Underwriters Laboratories, Inc. Services. 1-4
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Chapter 2 Getting Acquainted Introduction Turning the Meter On Although this manual describes the operation of both To turn the meter on, turn the rotary switch from OFF to Models 187 and 189, all illustrations and examples any switch setting. assume use of Model 189. Additional capabilities with The ac volts function (shown in Figure 2-1) is assumed in Model 189 are discussed in Chapter 4. These capabilities the following discussion. You do not need connections to include the following: the inp
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Model 187 & 189 Users Manual Automatic Power Off The display blanks and the meter goes into a “sleep” mode if you have not changed the rotary switch position or pressed a button for a set period. While in Sleep mode, pressing any button turns the meter on. The meter then returns to the display for the function selected with the rotary switch; all previously activated button features tc031f.eps (HOLD, Hz, etc.) are discarded. Figure 2-1. AC Volts Display The automatic power off is preset to 15 m
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Getting Acquainted Battery Considerations 2 Automatic Backlight Off Low Battery Indication Press to select the backlight level (low, high, or off.) In A constant battery icon ( ) in the upper left corner of low or high, the backlight turns off automatically after a the display notifies you that the batteries are low and given period. This period is also preset to 15 minutes and should be replaced. can be set to a maximum of 99 minutes from the setup Warning menu. If the period is set to 0, t
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Model 187 & 189 Users Manual The rotary switch is shown in Figure 2-2. Each position is Rotary Switch described in Table 2-1. Turn the meter on by selecting any measurement function (identified with white letters around the rotary switch). The meter presents a standard display for that function (range, nS measurement units, modifiers, etc.) The display may also be influenced by some of the choices made in Setup. F mV Use the blue button to select any rotary switch alternate ac+dc C function (lab
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Getting Acquainted Pushbuttons 2 Pushbuttons LOGGING The buttons activate features that augment the function AutoHOLD FAST MN MX YES selected with the rotary switch. The buttons are shown in HOLD HOLD MIN MAX MIN MAX REL REL Figure 2-3 and described in Table 2-2. NO CANCEL SAVE Use the blue button ( ) to access functions labeled in ms ms Hz Hz % % RANGE RANGE blue for some of the rotary switch positions. Table 2-1 defines all blue button functions. SETUP Use the yellow button ( ) followed by o
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®
Model 187 & 189
True RMS Multimeter
Users Manual
August 2000, Rev.2, 6/02
© 2000, 2002 Fluke Corporation. All rights reserved. Printed in U.S.A.
All product names are trademarks of their respective companies.
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Lifetime Limited Warranty Each Fluke 20, 70, 80, 170 and 180 Series DMM will be free from defects in material and workmanship for its lifetime. As used herein, “lifetime” is defined as seven years after Fluke discontinues manufacturing the product, but the warranty period shall be at least ten years from the date of purchase. This warranty does not cover fuses, disposable batteries, damage from neglect, misuse, contamination, alteration, accident or abnormal conditions of operation or handling
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Table of Contents Chapter Title Page 1 Before You Start .......................................................................................................... 1-1 Safety Information.......................................................................................................... 1-1 Contacting Fluke............................................................................................................ 1-1 Symbols....................................................................
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Model 187 & 189 Users Manual Selecting the Range....................................................................................................... 2-10 Understanding the Display ............................................................................................. 2-10 Primary Display ......................................................................................................... 2-10 Secondary Display..........................................................................
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Contents (continued) Measuring AC Current .............................................................................................. 3-18 Measuring DC Current .............................................................................................. 3-20 Measuring Frequency.................................................................................................... 3-22 Measuring Duty Cycle............................................................................................
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Model 187 & 189 Users Manual 6 Maintenance ................................................................................................................. 6-1 Introduction ....................................................................................................................6-1 General Maintenance..................................................................................................... 6-1 Testing the Fuses................................................................
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Model 187 & 189 Users Manual Table 2-1. Rotary Switch Selections Position Rotary Switch Function Blue Key Function AC voltage measurement from 0 V to 1000.0 V dB over AC, AC over dB AC millivolt measurement from 0 mV to 3000.0 mV dB over AC, AC over dB DC voltage measurement from 0 V to 1000.0 V AC over DC (AC in primary display, DC in secondary display), DC over AC, ac+dc DC millivolt measurement from 0 mV to 3000.0 mV AC over DC (AC in primary display, DC in secondary display), DC ove
