Related Manuals for Fluke 87 IV Series
Summary of Contents for Fluke 87 IV Series
- Page 1 ® 87 & 89 Series IV True RMS Multimeter Service Manual PN 676137 May 1999 © 1999 Fluke Corporation, All rights reserved. Printed in U.S.A. All product names are trademarks of their respective companies.
- Page 2 Fluke Corporation (Fluke) warrants this product to be free from defects in material and workmanship under normal use and service for the life of the product. This warranty extends only to the original buyer or end-user customer of a Fluke authorized reseller, and does not apply to fuses, batteries or to any product which, in Fluke’s opinion, has been misused,...
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Page 3: Table Of Contents
Table of Contents Title Page Introduction ...................... 1 Precautions and Safety Information..............2 International Symbols..................2 Safety Information .................... 3 Specifications....................4 Accuracy ...................... 4 Feature Summary ..................4 General Specifications.................. 5 Basic Specifications..................6 AC Voltage and Decibel Specifications ............6 AC Current Specifications................ - Page 4 87 & 89 Series IV Service Information Testing Temperature..................18 Testing Voltage, Current, Resistance, Capacitance and Diode Functions ..19 Calibration ......................22 Keypad Interface ..................22 General Procedure ..................23 Special Requirements ................... 24 Calibration Inputs ..................24 Remote Interface ..................26 Temperature Calibration................
- Page 5 List of Tables Table Title Page International Symbols ................... 2 Required Tools and Equipment................11 Temperature Test Input and Display..............18 Performance Test Steps..................19 Calibration Inputs....................24 Replacement Parts and Accessories ..............28...
- Page 6 87 & 89 Series IV Service Information...
- Page 7 List of Figures Figure Title Page Removing LCD Mask to Access LCD ..............13 Testing the Current Fuses..................15 Battery and Fuse Replacement................16 Display Test ......................17 Locating Recessed Calibration Button ..............22 Calibration Display ....................23 Replacement Parts and Accessories ..............29...
- Page 8 87 & 89 Series IV Service Information...
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Page 9: Introduction
Follow the standard practices for handling static sensitive devices. The information in this manual deals with the Fluke Models 87 & 89 Series IV True RMS Multimeters, (hereafter referred to as “the meter”). Information provided includes: •... -
Page 10: Precautions And Safety Information
87 & 89 Series IV Service Manual Precautions and Safety Information Use the Meter only as described in the Users Manual. If you do not do so, the protection provided by the Meter may be impaired. Read the “Safety Information” page before servicing this product. In this manual, a Warning identifies conditions and actions that pose hazard(s) to the user;... -
Page 11: Safety Information
Safety Information Safety Information Warnings and Precautions 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. -
Page 12: Specifications
87 & 89 Series IV Service Manual Specifications Accuracy Accuracy is specified for a period of one year after calibration, at 18 °C to 28 °C (64 °F to 82 °F), with relative humidity to 90 %. Accuracy specifications are given as: ±... -
Page 13: General Specifications
Specifications General Specifications Maximum Voltage between any Terminal 1000 V ac/dc and Earth Ground Surge Protection 8 kV peak per IEC 1010.1-92 Fuse Protection for mA or µA inputs 44/100 A, 1000 V FAST Fuse Fuse Protection for A input 11 A, 1000 V FAST Fuse Display (LCD) Digital: 50000/5000 primary display,... -
Page 14: Basic Specifications
87 & 89 Series IV Service Manual Basic Specifications Function Ranges/Description DC Voltage 0 to 1000 V AC Voltage, true RMS 15 mV to 1000 V – 100 kHz bandwidth Basic Accuracy DC voltage: 0.025 % AC voltage: 0.4 % DC Current 0 to 10 A (20 A for 30 seconds) 25 µA to 10 A (20 A for 30 seconds) -
Page 15: Ac Current Specifications
Specifications AC Current Specifications Accuracy Function Range Resolution 45-1 kHz 20-45 Hz 1-20 kHz 20 kHz-100 kHz AC µA 500.00 µA 0.01 µA 0.75 % + 20 1 % + 20 0.75 % + 20 6 % + 40 5,000 µA 0.1 µA 0.75 % + 5 1% + 5... -
Page 16: Resistance And Conductance Specifications
87 & 89 Series IV Service Manual Resistance and Conductance Specifications Function Range Resolution Accuracy Ω Ω 3, 4 Resistance 500.00 0.01 0.05 % + 10 Ω Ω 5.0000 k 0.0001 k 0.05 % + 2 Ω Ω 50.000 k 0.001 k 0.05 % + 2 Ω... -
Page 17: Temperature Specifications
Specifications Temperature Specifications −200 to +1350 °C 0.1 °C ± ( 1% of reading + 1 °C) 1, 2 Temperature −328 to +2462 °F 0.1 °F ± ( 1% of reading + 1.8 °F) 1, 2 Accuracy specification is relative to the user-adjustable temperature offset, and assumes ambient temperature stable to ±... -
Page 18: Burden Voltage (A, Ma, Μa)
87 & 89 Series IV Service Manual Burden Voltage (A, mA, µ A) Function Range Burden Voltage (typical) mA - µA 500.00 µA 102 µV / µA 5,000 µA 102 µV / µA 50.000 mA 1.8 mV / mA 400.00 mA 1.8 mV / mA 5.0000 A 0.04 V / A... -
Page 19: Required Equipment
110.0 nF & 11.00 uF Accuracy: +0.25% Temperature Range: -10 to 350 °C Accuracy: 0.3% Thermocouple K-type Fluke 80AK Adapter Accessory K-type K-type, mini-plug on both ends Thermocouple Infrared (IR) Adapter Fluke P/N 690518 87/89 IV Service Fluke P/N 676152 Software... -
Page 20: Basic Maintenance
87 & 89 Series IV Service Manual Basic Maintenance Warning To avoid electrical shock or personal injury, remove the test leads and any input signals before opening the case or replacing the battery or fuses. To prevent damage or injury, install ONLY batteries or fuses specified for this product. -
Page 21: Replacing The Lcd
Basic Maintenance Replacing the LCD If you need to replace the LCD, you will find it easier to leave the LCD assembly attached to the circuit board and access the LCD by removing the LCD mask from the front of the LCD assembly. 1. -
Page 22: Reassembling The Meter Case
87 & 89 Series IV Service Manual Reassembling the Meter Case To reassemble the Meter case, do the following: 1. Verify that the rotary switch is in the position. 2. Reinsert the circuit board by placing it into the case top with the LCD showing through the window. -
Page 23: Replacing Fuses
Basic Maintenance Replace F2 if " " Replace F1 if " " displayed displayed tc038f.eps Figure 2. Testing the Current Fuses Replacing Fuses Warning To avoid electrical shock, remove the test leads and any input signals before replacing the battery or fuses. To prevent damage or injury, INSTALL ONLY specified fuses and batteries. -
Page 24: Cleaning
87 & 89 Series IV Service Manual 2. Remove the battery door by using a standard-blade screwdriver to the turn the battery door fasteners one-quarter turn counterclockwise. 3. Replace the batteries, observing proper polarity. Replace the battery door and secure it by turning the fasteners one-quarter turn clockwise. -
Page 25: Performance Tests
The following performance tests will ensure that the Meter is in proper operating condition and will check the accuracy of each meter function against its specifications. To perform the tests you will need a Fluke 5520A Calibrator or equipment meeting the minimum specification given in Table 1. -
Page 26: Keypad Test
IR adapter is aligned with the IR window. Testing Temperature Connect K-type thermocouple and Fluke 80Ak to the temperature input on the Meter. Connect the other end to the 5520A TC output. Allow connections to stabilize for 30 seconds before proceeding. -
Page 27: Testing Voltage, Current, Resistance, Capacitance And Diode Functions
Performance Tests Testing Voltage, Current, Resistance, Capacitance and Diode Functions To verify the accuracy of Meter functions, do the following. 1. Connect the Calibrator to the inputs on the Meter. 2. Turn the rotary switch to the function listed in each step. 3. - Page 28 87 & 89 Series IV Service Manual Table 4. Performance Test Steps (cont.) Frequency or Display Step Function Range Input Level Model Lower Upper Limit Limit AC&DC 50.000 V 50 V 20 kHz 46.960 53.040 DC mV 500.00 mV 0.02 0.02 DC mV 500.00 mV...
- Page 29 Performance Tests Table 4. Performance Test Steps (cont.) Frequency or Display Step Function Range Input Level Model Lower Upper Limit Limit AC uA 5000.0 uA 1.5 mA 1 kHz 1488.2 1511.8 DC mA 50.000 mA -0.010 0.010 DC mA 50.000 mA 50 mA 49.915 50.085...
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Page 30: Calibration
87 & 89 Series IV Service Manual Calibration Calibrate the Meter once a year to ensure that it performs to specifications. Before you begin the calibration procedure, locate the recessed calibration button on the back of the Meter, underneath the accessory mount. It is inside a small opening covered by a seal. -
Page 31: General Procedure
Calibration Function indicator UP button moves to the Autoranging next step is disabled for calibration Calibration step number Input signal required Calibration mode indicator aau01f.eps Figure 6. Calibration Display General Procedure A sequence of signal inputs is required for each function that must be calibrated. The secondary display shows the required input next to the step number for that function. -
Page 32: Special Requirements
87 & 89 Series IV Service Manual Special Requirements DC mV calibration will affect the calibration of all other functions. Therefore, the DC mV function must be calibrated before calibrating any other function. Similarly, AC mV must be calibrated before any AC function, but after DC mV. The remaining functions may be calibrated in any order. - Page 33 Calibration Table 5. Calibration Inputs (cont.) Step Value Frequency Time to Settle (In Seconds) AC V 700 Hz 50 V 700 Hz 500 V 700 Hz 500 V 700 Hz DC V 50 V 500 V 500 V Ohms 0 Ohms 500 Ohms 5k Ohms Ohms...
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Page 34: Remote Interface
Series IV meters with MET/CAL. This adapter allows you to connect the interface adapter to a PC. The DB9 Adapter and an Adapter Kit (Fluke P/N 689486) are required if you connect the UUT interface adapter to the 5520A serial port. For more information about MET/CAL calibration requirements, contact Fluke customer service. -
Page 35: Procedure
When the U10 EEPROM is replaced, you must also reenter the serial number and model number for the Meter. Do this as follows: 1. Connect the IR adapter to the serial com port of the PC. Install Fluke 87/89 IV Service Software (Fluke P/N 676152). -
Page 36: Parts And Accessories
87 & 89 Series IV Service Manual Parts and Accessories Replacement parts and accessories are listed in Table 6 and identified in Figure 7 by the reference designator. Table 6. Replacement Parts and Accessories Reference Part Description Designators Number Access Door, Battery / Fuse MP14 658446 Tilt-Stand... - Page 37 Parts and Accessories MP31 MP38 MP30 MP39 H8,9,10,11 MP14 MP34 aau03f.eps Figure 7. Replacement Parts and Accessories...
- Page 38 87 & 89 Series IV Service Manual...