Test Equipment Depot 88 Manual de usuario

Automotive Meter

Service Manual

For IEC 61010 CAT II Meters Only

PN 666856

November 1998 Rev.1, 11/99

All product names are trademarks of their respective companies.

Test Equipment Depot

99 Washington Street

Melrose, MA 02176-6024



Test Equipment Depot

99 Washington Street

Melrose, MA 02176-6024

www.testequipmentdepot.com

800-517-8431

781-665-0780 FAX

LIMITED WARRANTY & LIMITATION OF LIABILITY

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, altered, neglected or damaged by accident or abnormal

conditions of operation or handling. Fluke warrants that software will operate on appropriate Fluke instruments substantially in accordance

with its functional specifications for 90 days and that it has been properly recorded on non-defective media. Fluke does not warrant that

software will be error free or operate without interruption.

Fluke authorized resellers shall extend this warranty on new and unused products to end-user customers only but have no authority to

extend a greater or different warranty on behalf of Fluke.

Fluke’s warranty obligation is limited, at Fluke’s option, to refund of the purchase price, or free of charge repair or replacement of a defective

product which is returned to an authorized Fluke Service Center within the warranty period.

To obtain warranty service, contact your nearest Fluke Service Center or send the product, with a description of the difficulty, postage and

insurance prepaid (FCA Destination), to the nearest Fluke Service Center. Fluke assumes no risk for damage in transit. Following warranty

repair, the product will be returned to Buyer, transportation prepaid (FCA Destination). If Fluke determines that the failure was caused by

misuse, alteration, accident or abnormal condition of operation or handling, Fluke will provide an estimate of repair costs and obtain

authorization before commencing the work. Following repair, the product will be returned to the Buyer transportation prepaid and the Buyer

will be billed for the repair and return transportation charges (FCA Shipping Point).

Warranty service is available outside the United States only if product was purchased through a Fluke Authorized Sales Outlet in the country

of use or the applicable Fluke international price was paid. Product transported from the United States for which the applicable Fluke

international price was not paid must be returned to the U.S. to receive warranty service, at the shipment expense and risk of Buyer. Fluke

reserves the right to invoice Buyer for importation costs of repair/replacement parts when product purchased in one country is submitted for

repair in another country.

THIS WARRANTY IS PURCHASER’S SOLE AND EXCLUSIVE REMEDY AND IS IN LIEU OF ALL OTHER WARRANTIES, EXPRESS OR

IMPLIED, INCLUDING BUT NOT LIMITED TO ANY IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR

PURPOSE. FLUKE SHALL NOT BE LIABLE FOR ANY SPECIAL, INDIRECT, INCIDENTAL OR CONSEQUENTIAL DAMAGES OR

LOSSES, INCLUDING LOSS OF DATA, WHETHER ARISING FROM BREACH OF WARRANTY OR BASED ON CONTRACT, TORT,

RELIANCE OR ANY OTHER THEORY.

Since some countries or states do not allow limitation of the term of an implied warranty, or exclusion or limitation of incidental or

consequential damages, the limitations and exclusions of this warranty may not apply to every buyer. If any provision of this Warranty is held

invalid or unenforceable by a court of competent jurisdiction, such holding will not affect the validity or enforceability of any other provision of

this warranty. Fluke Corporation Fluke Europe B.V.

P.O. Box 9090 P.O. Box 1186

Everett WA 5602 B.D. Eindhoven

98206-9090 The Netherlands

Safety-1

Safety Information

This meter complies with EN 61010-1:1993, ANSI/ISA S82.01-1994 and CAN/CSA

C22.2 No. 1010.1-92 Overvoltage Category II. Use the meter only as specified in the

Users Manual, otherwise the protection provided by the meter may be impaired.

A Warning identifies conditions and actions that pose hazards to the user; a Caution

identifies conditions and actions that might damage the meter. International electrical

symbols used on the meter are shown below.

WWarning

To avoid possible electric shock or personal injury:

•Do not use the meter if it is damaged. Before use, inspect the

case for cracks or missing plastic. Pay particular attention to the

insulation surrounding the connectors.

•Always turn off power to the circuit before cutting, unsoldering,

or breaking the circuit. Small amounts of current can be

dangerous.

•Inspect the test leads for damaged insulation or exposed metal.

Check test lead continuity. Replace damaged leads.

•To avoid damage or injury, never use the meter on unprotected

circuits that exceed 4800 volt-amps.

•Do not use the meter if it operates abnormally. Protection may be

impaired. When in doubt, have the meter serviced.

•Do not operate the meter around explosive gas, vapor or dust.

•Do not apply more than 300 V dc or ac rms (sine) between

terminals or between any terminal and earth ground.

•Before each use, verify the meter’s operation by measuring a

known voltage.

•When servicing the meter, use only specified replacement parts.

•Use caution when working above 30 V ac rms, 42 V ac peak, or 60

V dc. Such voltages pose a shock hazard.

•Keep your fingers behind the finger guards on the probe when

making measurements.

•Connect the common test lead before connecting the live test

lead. Disconnect the live test lead first.

•Remove test leads from the meter before opening the case.

•Use only a single 9 V battery, properly installed in the meter case,

to power the meter.

•Follow all equipment safety procedures.

•Before measuring current, check the meter’s fuses (see “How to

Test the Fuse”).

Safety-2

•Never touch the probe to a voltage source when the test leads are

plugged into the 10 A input jack.

•Always use clamp-on probes (dc current clamps) when

measuring current exceeding 10 A.

•DO NOT connect thermocouple to voltages exceeding 30 V.

•Always use a high voltage probe to measure voltage if peak

voltage might exceed 300 V.

•To avoid false readings, which could lead to possible electric

shock or personal injury, replace the meter’s battery as soon as

the low battery indicator (N) appears.

•To avoid fire hazard, only use a fuse identical in type, voltage

rating, and current rating to that specified on the fuse rating label

located on the case bottom.

•Do not operate the meter if it is disassembled. Always operate the

meter with the case top and bottom properly assembled.

Disassembly procedures and warnings are in the 78 Automotive

Service Manual. Service procedures are for qualified personnel

only.

Caution

To avoid possible damage to the meter or to equipment under

test:

•Disconnect the power to the circuit under test and discharge all

high voltage capacitors before testing resistance, continuity or

diodes.

•Use the proper function and range for your measurement

applications.

•When measuring current, turn off circuit power before connecting

the meter in the circuit. Remember to place the meter in series

with the current.

Symbols

Symbol Meaning

Important information. See manual.

Ground

Fuse

Double insulation (Protection Class II)

Conforms to European Union directives

Table of Contents

Chapter Title Page

1 Introduction and Specifications........................................................ 1-1

1-1. Introduction.......................................................................................... 1-3

1-2. Organization of the Service Manual..................................................... 1-3

1-3. Conventions.......................................................................................... 1-4

1-4. Specifications....................................................................................... 1-4

2 Theory of Operation........................................................................... 2-1

2-1. Introduction.......................................................................................... 2-3

2-2. Functional Block Description............................................................... 2-3

2-3. Detailed Circuit Description ................................................................ 2-5

2-4. Input Overload Protection................................................................ 2-5

2-5. Rotary Switch................................................................................... 2-5

2-6. Input Signal Conditioning Circuits.................................................. 2-5

2-7. Volts............................................................................................. 2-6

2-8. Ohms............................................................................................ 2-6

2-9. Analog Section of Integrated Meter IC (U4)................................... 2-6

2-10. Microcomputer Control ................................................................... 2-8

2-11. Peripherals to U4.............................................................................. 2-9

2-12. AC Buffer .................................................................................... 2-10

2-13. AC Converter............................................................................... 2-10

2-14. Active Filter................................................................................. 2-10

2-15. A/D Converter ............................................................................. 2-10

2-16. Beeper.......................................................................................... 2-10

2-17. Reference Voltage ....................................................................... 2-10

2-18. Power Supply............................................................................... 2-10

2-19. Display............................................................................................. 2-11

2-20. Rotary Knob Switch and Potentiometer .......................................... 2-11

3 Maintenance....................................................................................... 3-1

3-1. Introduction.......................................................................................... 3-3

3-2. Required Tools and Equipment............................................................ 3-3

3-3. Operator Maintenance.......................................................................... 3-4

3-4. Disassembing the Case..................................................................... 3-5

3-5. Removing and Reinstalling the Circuit Assembly........................... 3-5

Service Manual

3-6. Reassembling the Case..................................................................... 3-6

3-7. Replacing the Battery....................................................................... 3-7

3-8. Testing Fuses ................................................................................... 3-7

3-9. Replacing Fuses ............................................................................... 3-7

3-10. Cleaning........................................................................................... 3-8

3-11. Input Terminals............................................................................ 3-8

3-12. Function Encoding Potentiometer ............................................... 3-8

3-13. Performance Test.................................................................................. 3-9

3-14. Testing the Display .......................................................................... 3-9

3-15. Testing Function Selection (Rotary Switch).................................... 3-10

3-16. Testing the AC Voltage Function.................................................... 3-10

3-17. Testing the Frequency Counter Function......................................... 3-11

3-18. Testing Frequency Sensitivity and Trigger Level............................ 3-12

3-19. Testing the DC Voltage Function.................................................... 3-12

3-20. Testing the DC mV Function........................................................... 3-13

3-21. Testing the Ohms Function.............................................................. 3-13

3-22. Testing the Diode Test Function...................................................... 3-13

3-23. Testing the mA Functions................................................................ 3-13

3-24. Testing the Amp Functions.............................................................. 3-14

3-25. Testing the Inductive Pickup............................................................ 3-14

3-26. Calibration............................................................................................ 3-18

3-27. Troubleshooting the Power Supply...................................................... 3-19

3-28. Common (Shunt) Regulator Troubleshooting.................................. 3-21

3-29. VDD (Series) Regulator Troubleshooting....................................... 3-23

3-30. Troubleshooting a Function Selection Malfunction............................. 3-23

3-31. Meter Does Not Turn Off (Problem 1)............................................ 3-24

3-32. Meter Enters Wrong Function (Problem 2) ..................................... 3-24

4 List of Replaceable Parts .................................................................. 4-1

4-1. Introduction.......................................................................................... 4-3

4-2. How to Obtain Parts............................................................................. 4-3

4-3. Manual Status Information................................................................... 4-3

4-4. Newer Instruments................................................................................ 4-4

4-5. Service Centers..................................................................................... 4-4

4-6. Parts Lists............................................................................................. 4-4

5 Schematic Diagrams.......................................................................... 5-1

iii

List of Tables

Table Title Page

1-1. Summary of Accuracy Specifications.................................................................... 1-5

2-1. Typical Voltage Levels and Tolerance.................................................................. 2-11

3-1. Required Equipment.............................................................................................. 3-3

3-2. Function Selection Test......................................................................................... 3-10

3-3. AC Voltage Test.................................................................................................... 3-11

3-4. Frequency Test....................................................................................................... 3-11

3-5. Frequency Counter Sensitivity and Trigger Level Tests....................................... 3-12

3-6. DC Voltage Test.................................................................................................... 3-12

3-7. Ohms Test.............................................................................................................. 3-13

3-8. Milliamp Tests....................................................................................................... 3-14

3-9. Amp Tests.............................................................................................................. 3-14

3-10. Functional Description of Power Supply Components ......................................... 3-20

3-11. Voltage Levels....................................................................................................... 3-20

4-1. Fluke 88 Final Assembly....................................................................................... 4-5

4-2. A1 Main PCA........................................................................................................ 4-7

Service Manual

List of Figures

Figure Title Page

2-1. Overall Functional Block Diagram........................................................................ 2-4

2-2. A/D Conversion..................................................................................................... 2-8

2-3. Function-Encoding Switch .................................................................................... 2-12

3-1. Battery and Fuse Replacement .............................................................................. 3-4

3-2. Assembly Details................................................................................................... 3-6

3-3. Display Test........................................................................................................... 3-9

3-4. Setup for Inductive Pickup Test ............................................................................ 3-16

3-5. Waveform for Inductive Pickup Test..................................................................... 3-17

3-6. Calibration Adjustment Points............................................................................... 3-19

3-7. Simplified Power Supply Schematic ..................................................................... 3-22

4-1. Fluke 88 Final Assembly....................................................................................... 4-6

4-2. A1 Main PCA........................................................................................................ 4-9

5-1. A1 Main PCA........................................................................................................ 5-3

Service Manual

AUTOMOTIVE METER

MIN MAX RANGE HOLD

%DUTY ALERT

ZERO

RPM

AVG

M k

4000

20 2 4 6 3108 2 4 6 8 420

TRIG

_ +

AUTO RANGE RECORD MAX MIN AVG

ACDC

m s %

m V A

RPM

POWER-UP OPTIONS

PRESS 2 SEC. WHILE TURNING METER ON

LOW, OHMS/HIGH RESOLUTION

DISABLE AUTOMATIC POWER-OFF

AUTORANGE VDC, VAC

HI IMPENDANCE mV DC INPUT

TURN OFF BEEPER

TEST ROTARY SWITCH

HI ACCURACY, 1 SEC. RESPONSE

ZERO

MIN MAX

RANGE

HOLD

ALERT

RPM

WARNING

TO AVOID ELECTRICALSHOCK REMOVE

TEST LEADS BEFORE OPENING CASE

TO PREVENT DAMAGE OF INJURY

INSTALL QUICKACTING FUSES WITH

AMP/VOLT RATINGS SHOWN.

POWER-UP OPTIONS

DISPLAY

PUSHBUTTONS

ROTARY SWITCH

ELECTRICAL SHOCK

AND FUSE WARNINGS

BATTERY TYPE

BACK

FUSE RATINGS

SKID

RESISTANT

FEET

INPUT TERMINALS

FRONT

9V NEDA 1604

F 44/100A 1000V

MIN INTERRUPT RATING 10 000A

F 11A 1000V

MIN INTERRUPT RATING 17 000A

FLUKE CORPORATION

MADE IN USA

PAT. RE. 34,428 DES. 314,715 DES. 312,534 4,217,543

4,556,867 4,532,470 5,073,757 4,940,204 4,951,834

PRODUCT

SERVICE

OFF

RPM

AmA COM RPM

400mA

FUSED

10A

FUSED

Hz ms-PULSE TRIGGER

SMOOTH

300V

CATII

LR44340

aad01f.eps

Frontispiece

Tabla de contenidos

Otros manuales de Instrumento de medición de Test Equipment Depot

Test Equipment Depot

Test Equipment Depot testo 606-2 Manual de usuario

Test Equipment Depot

Test Equipment Depot DM8200 Manual de usuario

Test Equipment Depot

Test Equipment Depot UEi C163 Manual de usuario

Test Equipment Depot

Test Equipment Depot 6255 Manual de usuario

Test Equipment Depot

Test Equipment Depot BST-CM273 Manual de usuario

Test Equipment Depot

Test Equipment Depot 8901 Manual de usuario

Test Equipment Depot

Test Equipment Depot gom-802 Manual de usuario

Test Equipment Depot

Test Equipment Depot IDEAL 700 Series Manual de usuario

Test Equipment Depot

Test Equipment Depot BST-TDS01 Manual de usuario

Test Equipment Depot

Test Equipment Depot RXW-GP Series Manual de usuario

Test Equipment Depot

Test Equipment Depot GSP-730 Manual de usuario

Test Equipment Depot

Test Equipment Depot 8758 Manual de usuario

Test Equipment Depot

Test Equipment Depot testo 400 Manual

Test Equipment Depot

Test Equipment Depot VC9200 Manual de usuario

Test Equipment Depot

Test Equipment Depot 89088 Manual de usuario

Test Equipment Depot

Test Equipment Depot CW240 Manual de usuario

Test Equipment Depot

Test Equipment Depot 9305 Manual de usuario

Test Equipment Depot

Test Equipment Depot XFTP SAT LITE Manual de usuario

Test Equipment Depot

Test Equipment Depot SBS 2500 Manual de usuario

Test Equipment Depot

Test Equipment Depot GVT-427B Manual de usuario

Test Equipment Depot

Test Equipment Depot AMPROBE WT-80 Manual de usuario

Test Equipment Depot

Test Equipment Depot TRACEABLE Manual de usuario

Test Equipment Depot

Test Equipment Depot LG 226 Manual de usuario

Manuales populares de Instrumento de medición de otras marcas

Suaoki

Suaoki D40 Manual de usuario

Elster

Elster BK-G1.6 Manual de usuario

Endress+Hauser

Endress+Hauser Deltabar FMD71 Manual

Duratool

Duratool D03128 Manual de usuario

Vega

Vega VEGAPULS 65 Manual de usuario

Tonghui

Tonghui TH2618B Manual de usuario

Tenmars

Tenmars TM-801 Manual de usuario

MSR

MSR 145 Manual de usuario

TPS

TPS WP-82 Manual de usuario

ELMETRON

ELMETRON CP-511 Manual de usuario

PCB Piezotronics

PCB Piezotronics 003C30 Manual de usuario

Tenma

Tenma 72-10465 Manual de usuario

Endress+Hauser

Endress+Hauser Proline Promag 50 Especificaciones técnicas

Siemens

Siemens SITRANS F Coriolis FCT030 Manual de lista de piezas

KLINGER

KLINGER CMF V Series Manual de usuario

EXFO

EXFO FTB-2 Manual de operación y mantenimiento

Keysight

Keysight M8290A Manual de usuario

ADTEK

ADTEK MW-5 Manual de usuario