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Fluke
189
user manual
Display Features
Models:
189
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Specifications
Input Characteristics
Changing the Default Settings
Symbols
Warranty
Maintenance
Common Setup Selections
Battery Considerations
Setting the Power Off Timeout
Measuring Temperature
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Users Manual
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Figure
2-4.
Display Features
2-12
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Contents
Model 187
Lifetime Limited Warranty
Table of Contents
Model 187
Making Measurements
Iii
Maintenance
Specifications
List of Tables
Model 187
List of Figures
Viii
Contacting Fluke
Safety Information
Before You Start
Safety Information
WWarning
Before You Start
Symbols
International Electrical Symbols
Turning the Meter On
Getting Acquainted
Introduction
Battery Considerations
Automatic Power Off
Low Battery Indication
Automatic Backlight Off
Rotary Switch
Rotary Switch
Pushbuttons
Pushbuttons
Rotary Switch Selections Position Rotary Switch Function
Blue Key Function
Rotary Switch Positions
View MEM
Button Pushbuttons Yellow Button Description Function
Pushbuttons Button Description
Yellow Button Function
Primary Display
Selecting the Range
Understanding the Display
Bar Graph
Secondary Display
Display Features
Number Feature Display Features Description
Display Features Number
8.8.8
Number Feature
Display Features Description
Display Features Number 51000
FMS8888 HM8888 8.8
Using the Input Terminals
Input Terminals
Using Display Hold
Display Hold and AutoHOLD
Using AutoHOLD
Using MIN MAX
Model 187
Using Fast MN MX
Min Max Avg
Using Relative Mode REL
Using Hold with MIN MAX or Fast MN MX
Making Measurements
Measuring Voltage
Measuring AC Voltage
AC Voltage Measurement
DB Measurements in AC Volts Functions
DBm Display
Measuring DC Voltage
Both AC and DC Voltage Measurements
AC over DC DC over AC
AC and DC Display
Measuring Resistance
Capacitors before measuring resistance
OFF
Testing for Continuity
Automatically subtract this value
Using Conductance for High Resistance Tests
For in-circuit tests, turn circuit power off
Conductance Measurement
Measuring Capacitance
Testing Diodes
Capacitance Measurement
Diode Test
Electrically live circuits
Measuring Temperature
Shock, do not connect the thermocouples to
Measuring Current
Input Ranges
Input Alert Feature
Measuring Current
Measuring AC Current
Following are some tips for measuring current
11. AC Current Measurement
Measuring DC Current
Total current to circuit
Current through one component
Measuring Frequency
13. Functions Allowing Frequency Measurement
Measuring Duty Cycle
14. Hz Display
Measures Positive Pulse
Measures Negative Pulse
Measuring Pulse Width
16. Duty Cycle Display
Start and Stop on Positive Slope
Start and Stop on Negative Slope
18. Pulse Width Display
Model 187
Saved Readings Memory
Using Memory & Communications Features
Types of Memory
Logged Readings Memory
Stopping Logging
Storing Saved Readings
Starting Logging
Viewing Memory Data
To avoid electric shock, disconnect the test
View Display
MEM
Using Communications 187
Clearing Memory
Model 187
Changing the Default Settings
Selecting Setup Options
Precondition
Function Specific Setup Selections
Factory Default
Option
Common Setup Selections
Choices
Adjusting the Temperature Offset
Changing the Default Settings
Selecting Display Resolution 3 1/2 or 4 1/2 Digits
Setting the Power Off Timeout
Setting the 24-Hour Clock
Setting the Line Main Frequency
Returning to Factory Defaults
Saving Setup Options
Testing the Fuses
Maintenance
Introduction General Maintenance
Replace F2 if Replace F1 if Displayed
Replacing the Batteries
Battery and Fuse Replacement
Case of Difficulty
Replacing the Fuses
User-Replaceable Parts
MP8 MP9
Specifications
Safety and Compliances
Physical Specifications
Feature Summary
Basic Specifications
Detailed Accuracy Specifications
20 kHz
Accuracy Function
45-1 kHz
KHz-100 kHz
DC a
500.00 Ω
Capacitance Diode Test
MIN MAX AVG
Frequency Counter Sensitivity
Burden Voltage A, mA, µA
Input Characteristics
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