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78
Fluke 78 Manuals
Manuals and User Guides for Fluke 78. We have
2
Fluke 78 manuals available for free PDF download: Service Manual, User Manual
Fluke 78 Service Manual (64 pages)
For IEC 61010 CAT II Meters Only
Brand:
Fluke
| Category:
Measuring Instruments
| Size: 4.12 MB
Table of Contents
Table of Contents
5
Introduction and Specifications
11
Introduction
13
Organization of the Service Manual
13
Conventions
14
Specifications
14
Theory of Operation
19
Introduction
21
Functional Block Description
21
Circuit Descriptions
22
Input Overload Protection
22
Rotary Knob Switch
22
Input Signal Conditioning Circuits
22
Volts Functions
22
Ohms Function
23
Continuity
24
Temperature Function
24
Diode Test Function
25
RPM Function
25
Current Function
25
Analog Section of Integrated Multimeter IC (U1)
25
Frequency Measurements
27
Dwell and Duty Cycle Measurements
27
Microcomputer Control
27
Peripherals to U1
27
AC Buffer
27
AC Converter
27
Active Filter
27
A/D Converter
27
Beeper
28
Power Supply
28
Display
28
Maintenance
29
Introduction
31
Recommended Equipment
31
Operator Maintenance
31
Case Disassembly
31
Battery Replacement
31
Fuse Test
33
Fuse Replacement
33
Circuit Assembly Removal
33
Display Access
33
Cleaning
35
Performance Tests
35
Setup
35
Display Test
36
DC Voltage Test
36
AC Voltage Test
37
Frequency Test
37
Frequency, Dwell, and Duty Cycle Trigger Level Test
38
RPM Test
38
Ohms Test
39
Continuity Test
39
Diode Test
40
DC and AC Current Test
40
Temperature Test
40
RPM80 Inductive Pickup Test (Optional Accessory)
42
Calibration
45
Troubleshooting
46
Surface Mount Assemblies
46
Power Supply Related Troubleshooting
46
Common (Shunt) Regulator Troubleshooting
47
VDD (Series) Regulator Troubleshooting
48
List of Replaceable Parts
49
Introduction
51
How to Obtain Parts
51
Manual Status Information
51
Service Centers
52
Parts Lists
52
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Fluke 78 User Manual (62 pages)
Automotive Meter
Brand:
Fluke
| Category:
Measuring Instruments
| Size: 0.6 MB
Table of Contents
Table of Contents
3
Input Jacks
11
What Is in the Manual
13
Symbols
13
Using the Meter Safely
13
Getting Acquainted with the Meter
16
Rotary Switch
16
Input Jacks
18
Thermocouple Adapter
18
Display
20
Measurement Unit Symbols
20
Rpushbutton
22
Standby (Sleep) Mode
22
Pushbutton Operations
23
Bar Graph
24
Autorange with "Floor
24
Typical Testing Applications
26
G,F How to Measure Voltage
26
L How to Test Diodes
28
N, Adhow to Measure Current
30
How to Test Continuity
32
J How to Measure Resistance
34
Users Manual
34
RPM Ut How to Measure RPM with the RPM80 Inductive Pickup (Optional)
36
Hz S How to Use DC-Coupled HZ to Check BP/MAP Sensors
38
Hz D How to Use AC-Coupled Hz on a Crankshaft Position Sensor
40
How to Measure Dwell on Conventional Ignitions
42
How to Measure Duty Cycle on a Feedback Carburetor
44
C F How to Measure Temperature on a Coolant Temperature Sensor
46
How to Store Minimum and Maximum Measurements
48
How to Use the Bar Graph to Test a Throttle Position Sensor
50
How to Lock the Meter in a Measurement Range
52
Using the Holster and Flex-Stand
52
Maintenance
54
Cleaning
54
Calibration
54
How to Test the Fuse
54
How to Replace the Battery or Fuse
54
Accessories and Parts
54
Replacement Parts and Accessories
57
Specifications
58
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