Fluke 87 III Series Istruzioni per l'uso e l'installazione
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,
including failures caused by use outside of the product’s specifications, or normal wear and tear of
mechanical components. This warranty covers the original purchaser only and is not transferable.
For ten years from the date of purchase, this warranty also covers the LCD. Thereafter, for the
lifetime of the DMM, Fluke will replace the LCD for a fee based on then current component
acquisition costs.
To establish original ownership and prove date of purchase, please complete and return the
registration card accompanyingthe product, or register your product on http://www.fluke.com.
Fluke will, at its option, repair at no charge, replace or refund the purchase price of a defective
product purchased through a Fluke authorized sales outlet and at the applicable international
price. Fluke reserves the right to charge for importation costs of repair/replacement parts if the
product purchased in one country is sent for repair elsewhere.
If the product is defective, contact your nearest Fluke authorized service center to obtain return
authorization information, then send the product to that service center, with a description of the
difficulty, postage and insurance prepaid (FOB Destination). Fluke assumes no risk for damage
in transit. Fluke will pay return transportation for product repaired or replaced in-warranty.
Before making any non-warranty repair, Fluke will estimate cost and obtain authorization, then
invoice you for repair and return transportation.
THIS WARRANTY IS YOUR ONLY REMEDY. NO OTHER WARRANTIES, SUCH AS
FITNESS FOR A PARTICULAR PURPOSE, ARE EXPRESSED OR IMPLIED. FLUKE
SHALL NOT BE LIABLE FOR ANY SPECIAL, INDIRECT, INCIDENTAL OR
CONSEQUENTIAL DAMAGES OR LOSSES, INCLUDING LOSS OF DATA, ARISING
FROM ANY CAUSE OR THEORY. AUTHORIZED RESELLERS ARE NOT AUTHORIZED
TO EXTEND ANY DIFFERENT WARRANTY ON FLUKE’S BEHALF. Since some states do
not allow the exclusion or limitation of an implied warranty or of incidental or consequential
damages, this limitation of liability may not apply to you. If any provision of this warranty is
held invalid or unenforceable by a court or other decision-maker of competent jurisdiction, such
holding will not affect the validity or enforceability of any other provision.
2/02
i
Table of Contents
Title Page
Introduction ....................................................................................................... 1
Precautions and Safety Information .................................................................. 2
International Symbols........................................................................................ 2
Safety Information............................................................................................. 3
Specifications .................................................................................................... 4
Accuracy ....................................................................................................... 4
General.......................................................................................................... 4
AC Voltage Specifications (Models 85 and 87)........................................... 5
AC Voltage Specifications (Model 83)......................................................... 5
DC Voltage, Resistance, and Conductance Specifications........................... 5
Current Specifications................................................................................... 6
Capacitance and Diode Function Specifications .......................................... 6
Frequency Counter Specifications................................................................ 6
Frequency Counter Sensitivity and Trigger Levels ...................................... 7
MIN MAX Recording Specifications ........................................................... 7
Electrical Characteristics of the Terminals................................................... 8
Required Equipment.......................................................................................... 8
Basic Maintenance ............................................................................................ 9
Opening the Meter Case................................................................................ 9
Removing and Reinserting the Circuit Board Assembly.............................. 10
Reassembling the Meter Case....................................................................... 11
Replacing the Battery.................................................................................... 11
Testing Fuses (F1 and F2)............................................................................. 12
Replacing Fuses ............................................................................................ 13
Cleaning........................................................................................................ 13
Input Terminals......................................................................................... 13
Rotary Switch ........................................................................................... 14
Performance Tests............................................................................................. 14
A Basic Operability Test............................................................................... 14
Testing the Display ....................................................................................... 15
Testing the Rotary Switch............................................................................. 15
Testing the AC Voltage Function................................................................. 16
Testing the Frequency Function.................................................................... 17
Testing the Frequency Sensitivity and Trigger Level................................... 17
Testing DC Voltage ...................................................................................... 18
Testing the PEAK MIN MAX Function (Model 87 only)............................ 18
80 Series III
Service Manual
ii
Testing the mV DC Function........................................................................ 19
Testing the Resistance Function ................................................................... 19
Testing the Capacitance Function................................................................. 20
Checking the Diode Test Function................................................................ 20
Testing the Milliamp (mA) Function............................................................ 21
Testing the Microamp (µA) Function........................................................... 21
Testing the Amp (A) Function...................................................................... 22
Calibration......................................................................................................... 23
Calibrating the Model 85 and 87 III.............................................................. 23
Calibrating the Model 83 III ......................................................................... 25
Parts and Accessories........................................................................................ 25
iii
List of Tables
Table Title Page
1. International Symbols............................................................................................ 2
2. Required Tools and Equipment............................................................................. 9
3. Rotary Switch Test ................................................................................................ 16
4. AC Voltage Test .................................................................................................... 16
5. Frequency Test....................................................................................................... 17
6. Frequency Counter Sensitivity and Trigger Level Tests....................................... 18
7. DC Voltage Test .................................................................................................... 18
8. Peak MIN MAX Test............................................................................................. 19
9. Ohms Tests ............................................................................................................ 20
10. Capacitance Tests .................................................................................................. 20
11. mA Tests................................................................................................................ 21
12. µA Tests................................................................................................................. 22
13. Current Tests.......................................................................................................... 22
14. Replacement Parts ................................................................................................. 25
15. Accessories............................................................................................................ 26
80 Series III
Service Manual
iv
v
List of Figures
Figure Title Page
1. Disassembly Details............................................................................................... 10
2. Battery and Fuse Replacement .............................................................................. 11
3. Testing the Current Input Fuses............................................................................. 12
4. Display Test........................................................................................................... 15
5. Calibration Adjustment Points............................................................................... 24
6. Replaceable Parts................................................................................................... 26
80 Series III
Service Manual
vi
1
Introduction
WWarning
To avoid shock or injury, do not perform the verification tests
or calibration procedures described in this manual unless you
are qualified to do so.
The information provided in this document is for the use of
qualified personnel only.
Caution
The 80 III Multimeter contains parts that can be damaged by
static discharge.
Follow the standard practices for handling static sensitive
devices.
The 80 Series III Service Information provides the following information:
•Precautions and safety information
•Specifications
•Basic maintenance (cleaning, replacing the battery and fuses)
•Performance test procedures
•Calibration and calibration adjustment procedures
•Accessories and replaceable parts
For complete operating instructions, refer to the 80 Series III Users Manual.
To contact Fluke, 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
For additional information about Fluke, its products, and services, visit Fluke’s web site
at:
www.fluke.com
80 Series III
Service Information
2
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; a Caution identifies conditions and actions that may damage the Meter or the test
instruments.
International Symbols
International symbols used on the Meter and in this manual are explained in Table 1.
Table 1. International Symbols
Symbol Meaning Symbol Meaning
Alternating current Earth ground
Direct current Fuse
Alternating or direct current Conforms to European Union
directives
Refer to the manual. Important
information. Conforms to relevant Canadian
Standards Association directives
Take appropriate precautions.
Hazardous voltage may be present TDouble insulated
Battery OIEC overvoltage category III
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