Model 87 & 89 Series IV

1 Model 87 & 89 Series IVTrue RMS MultimeterUsers ManualMarch 1999 , 3/00 1999,2000 Fluke Corporation, All rights reserved. Printed in product names are trademarks of their respective LIMITED WARRANTYEach Fluke 20, 70, and 80 Series DMM purchased after October 1, 1996 will be free from defects in material and workmanship for its life-time. This warranty does not cover fuses, disposable batteries and damage from neglect, misuse, contamination, alteration, accident orabnormal conditions of operation or handling, including overvoltage failures caused by use outside the DMMs specified rating, or normalwear and tear of mechanical components. This warranty covers the original purchaser only and is not ten years from the date of purchase, this warranty also covers the LCD. Thereafter, for the lifetime of the DMM, Fluke will replace theLCD for a fee based on then current component acquisition establish original ownership and prove date of purchase, please complete and return the registration card accompanying the will, at its option, repair at no charge, replace, or refund the purchase price of a defective product purchased through a Fluke author-ized sales outlet and at the applicable international price.

2 Fluke reserves the right to charge for importation costs of repair/replacement partsif product purchased in one country is sent for repair product is defective, contact your nearest Fluke authorized service center to obtain return authorization information, then send the productto that service center, with a description of the difficulty, postage and insurance prepaid (FOB Destination). Fluke assumes no risk for dam-age in transit. Fluke will pay return transportation for product repaired or replaced in-warranty. Before making any non-warranty repair, Flukewill estimate cost and obtain authorization, then invoice you for repair and return WARRANTY IS YOUR ONLY REMEDY. NO OTHER WARRANTIES, SUCH AS FITNESS FOR A PARTICULAR PURPOSE, AREEXPRESSED OR IMPLIED. FLUKE SHALL NOT BE LIABLE FOR ANY SPECIAL, INDIRECT, INCIDENTAL OR CONSEQUENTIALDAMAGES OR LOSSES, INCLUDING LOSS OF DATA, ARISING FROM ANY CAUSE OR THEORY.

3 AUTHORIZED RESELLERS ARENOT AUTHORIZED TO EXTEND ANY DIFFERENT WARRANTY ON FLUKE S BEHALF. Since some states do not allow the exclusion orlimitation of an implied warranty or of incidental or consequential damages, this limitation of liability may not apply to you. If any provision ofthis warranty is held invalid or unenforceable by a court or other decision-maker of competent jurisdiction, such holding will not affect thevalidity or enforceability of any other CorporationFluke Europe Box Box 1186 Everett, WA 98206-90905602 BD Netherlands11/99iTable of ContentsChapterTitlePage1 Before You Start .. 1-1 Safety Information .. 1-1 Contacting Fluke .. Acquainted .. the Meter On .. 2-1 Battery Considerations .. 2-2 Automatic Power 2-2 Automatic Backlight Off .. 2-3 Low Battery Indication .. 2-3 Rotary Switch .. 2-4 Pushbuttons .. 2-5 Model 87 & 89 Series IVUsers ManualiiSelecting the Range.

4 2-10 Understanding the 2-10 Primary Display .. 2-10 Secondary Display .. 2-11 Bar 2-11 Using the Input Terminals .. 2-17 Using Display 2-18 Using AutoHOLD .. 2-18 Using MIN MAX .. 2-19 Using FAST MN 2-20 Using HOLD with MIN MAX or FAST MN MX .. 2-21 Using Relative Mode (REL) .. 2-213 Making Measurements .. 3-1 Introduction ..3-1 Measuring Voltage .. 3-1 Measuring AC Voltage .. 3-2dB Measurements in AC Volts 3-3 Measuring DC Voltage .. 3-4 Both AC and DC Voltage 3-4 Measuring Resistance .. 3-6 Testing for Continuity .. 3-8 Using Conductance for High Resistance 3-9 Measuring Capacitance .. 3-12 Testing Diodes .. 3-13 Measuring 3-15 Measuring Current .. 3-16 Input Alert 3-17 Contents (continued)iiiMeasuring AC Current .. 3-18 Measuring DC 3-20 Measuring 3-22 Measuring Duty Cycle .. 3-23 Measuring Pulse Width .. 3-254 Using Memory & Communications Features ( Model 89).

5 Of 4-1 Saved Readings Memory .. 4-1 Logged Readings 4-1 Storing Saved 4-2 Starting Logging .. 4-2 Stopping Logging .. 4-2 Viewing Memory Data .. 4-3 Clearing Memory .. 4-5 Using 4-55 Changing the Default Settings .. Setup 5-1 Adjusting the Temperature Offset .. 5-4 Selecting Display Resolution (3 1/2 or 4 1/2 Digits) .. 5-6 Setting the Power Off Timeout .. 5-6 Setting the 24-Hour Clock .. 5-7 Setting the Line (Main) Frequency .. 5-7 Returning to Factory 5-8 Saving Setup 5-8 Model 87 & 89 Series IVUsers Manualiv6 Maintenance .. 6-1 Introduction ..6-1 General 6-1 Testing the Fuses .. 6-1 Replacing the 6-3 Replacing the Fuses .. 6-5 User-Replaceable 6-5In Case of Difficulty .. 6-57 Specifications .. 7-1 Safety and Compliances .. 7-1 Physical Specifications .. 7-2 Feature Summary .. 7-3 Basic Specifications .. 7-4 Detailed Accuracy Specifications.

6 7-5 Frequency Counter Sensitivity .. 7-11 Burden Voltage (A, mA, A).. 7-11 Input Characteristics .. 7-12vList of TablesTable Title Electrical Switch Current Specific Setup Setup 87 & 89 Series IVUsers ManualviviiList of FiguresFigure TitlePage2-1. AC Volts 2-22-2. Rotary Switch .. 2-42-3. 2-52-4. Display 2-122-5. Input 2-172-6. Display Hold and AutoHOLD .. 2-182-7. Min Max 2-202-8. Relative 2-213-1. AC Voltage Measurement .. 3-23-2. dBm Display .. 3-33-3. AC and DC 3-53-4. DC Voltage Measurement .. 3-63-5. Resistance Measurement ..3-73-6. Continuity 3-103-7. Conductance Measurement .. 3-113-8. Capacitance 3-133-9.

7 Diode Test .. 3-14 Model 87 & 89 Series IVUsers Manualviii3-10. Temperature AC Current Measurement .. 3-193-12. DC Current Measurement .. 3-213-13. Functions Allowing Frequency Measurement .. 3-223-14. Hz Display .. 3-233-15. Duty Cycle Measurements .. 3-243-16. Duty Cycle Display .. 3-253-17. Pulse Width Measurements ..3-263-18. Pulse Width Display .. 3-274-1. View Display .. 4-45-1. Adjusting Temperature Offset ..5-56-1. Testing the Current 6-26-2. Battery and Fuse 6-41-1 Chapter 1 Before You StartSafety InformationThe Fluke Model 87 and Model 89 Series IV True RMSM ultimeters (hereafter referred to as the meter ) complywith: :1993 ANSI/ISA CAN/CSA No. 1000V Overvoltage Category III, Pollution Degree 2 UL 3111-1 Use the meter only as specified in this manual. Otherwise,the protection provided by the meter may be to safety information in Table Warning identifies conditions and actions that posehazards to the user.

8 A Caution identifies conditions andactions that may damage the meter or the equipmentunder FlukeTo order accessories, receive assistance, or locate thenearest Fluke distributor or Service Center, call:USA: 1-888-99-FLUKE (1-888-993-5853)Canada: 1-800-36-FLUKE (1-800-363-5853)Europe: +31 402-678-200 Japan: +81-3-3434-0181 Singapore: +65-738-5655 Anywhere in the world: +1-425-446-5500 Address correspondence to:Fluke CorporationFluke Europe Box 9090, Box 1186,Everett, WA 98206-9090 5602 BD EindhovenUSAThe NetherlandsVisit us on the World Wide Web at: 87 & 89 Series IVUsers Manual1-2 Table 1-1. Safety InformationWWarningTo 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 ormissing plastic. Pay particular attention to the insulation surrounding the connectors. Inspect the test leads for damaged insulation or exposed metal.

9 Check the test leads for damaged test leads before you use the meter. Do not use the meter if it operates abnormally. Protection may be impaired. When in doubt, have themeter serviced. Do not operate the meter around explosive gas, vapor , or dust. Do not apply more than the rated voltage, as marked on the meter, between terminals or between anyterminal and earth ground. Before use, verify the meter s operation by measuring a known voltage. When measuring current, turn off circuit power before connecting the meter in the circuit. Rememberto place the meter in Series with the circuit. When servicing the meter, use only specified replacement parts. Use caution when working above 30 V ac rms, 42 V peak, or 60 V dc. Such voltages pose a shockhazard. Avoid working You StartSafety Information11-3 Table 1-1. Safety Information (cont.)WWarning When using the probes, keep your fingers behind the finger guards on the probes.

10 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, which could lead to possible electric shock or personal injury, replace thebatteries as soon as the low battery indicator (M) appears. Use only type AA batteries, properly installed in the meter case, to power the meter. To avoid the potential for fire or electrical shock, do not connect the thermocouples to electrically avoid possible damage to the meter or to the equipment under test, follow these guidelines: Disconnect circuit power and discharge all high-voltage capacitors before testing resistance,continuity, diodes, or capacitance. Use the proper terminals, function, and range for your measurements.