Fluke
187
user manual
Battery and Fuse Replacement
Specs
Input Characteristics
Changing the Default Settings
Symbols
Warranty
Maintenance
Common Setup Selections
Battery Considerations
Setting the Power Off Timeout
Measuring Temperature
Page 79
Model 187 & 189
Users Manual
F2
F1
tc037f.eps
Figure
6-2.
Battery and Fuse Replacement
6-4
Page 78
Page 80
Image 79
Page 78
Page 80
Contents
Model 187
Lifetime Limited Warranty
Table of Contents
Making Measurements
Model 187
Iii
Specifications
Maintenance
List of Tables
List of Figures
Viii
Before You Start
Safety Information
Contacting Fluke
WWarning
Safety Information
Before You Start
International Electrical Symbols
Symbols
Introduction
Getting Acquainted
Turning the Meter On
Automatic Power Off
Battery Considerations
Automatic Backlight Off
Low Battery Indication
Rotary Switch
Rotary Switch
Pushbuttons
Pushbuttons
Blue Key Function
Rotary Switch Selections Position Rotary Switch Function
View MEM
Rotary Switch Positions
Button Pushbuttons Yellow Button Description Function
Yellow Button Function
Pushbuttons Button Description
Understanding the Display
Selecting the Range
Primary Display
Secondary Display
Bar Graph
Display Features
Number Feature Display Features Description
8.8.8
Display Features Number
Display Features Description
Number Feature
FMS8888 HM8888 8.8
Display Features Number 51000
Input Terminals
Using the Input Terminals
Display Hold and AutoHOLD
Using Display Hold
Using MIN MAX
Using AutoHOLD
Model 187
Min Max Avg
Using Fast MN MX
Using Hold with MIN MAX or Fast MN MX
Using Relative Mode REL
Measuring Voltage
Making Measurements
AC Voltage Measurement
Measuring AC Voltage
DBm Display
DB Measurements in AC Volts Functions
Both AC and DC Voltage Measurements
Measuring DC Voltage
AC and DC Display
AC over DC DC over AC
Capacitors before measuring resistance
Measuring Resistance
OFF
Automatically subtract this value
Testing for Continuity
Using Conductance for High Resistance Tests
For in-circuit tests, turn circuit power off
Conductance Measurement
Measuring Capacitance
Capacitance Measurement
Testing Diodes
Diode Test
Shock, do not connect the thermocouples to
Measuring Temperature
Electrically live circuits
Input Ranges
Measuring Current
Measuring Current
Input Alert Feature
Following are some tips for measuring current
Measuring AC Current
11. AC Current Measurement
Measuring DC Current
Current through one component
Total current to circuit
13. Functions Allowing Frequency Measurement
Measuring Frequency
14. Hz Display
Measuring Duty Cycle
Measures Negative Pulse
Measures Positive Pulse
16. Duty Cycle Display
Measuring Pulse Width
Start and Stop on Negative Slope
Start and Stop on Positive Slope
18. Pulse Width Display
Logged Readings Memory
Using Memory & Communications Features
Types of Memory
Saved Readings Memory
Starting Logging
Storing Saved Readings
Stopping Logging
To avoid electric shock, disconnect the test
Viewing Memory Data
MEM
View Display
Clearing Memory
Using Communications 187
Selecting Setup Options
Changing the Default Settings
Option
Function Specific Setup Selections
Factory Default
Precondition
Choices
Common Setup Selections
Adjusting the Temperature Offset
Changing the Default Settings
Setting the Power Off Timeout
Selecting Display Resolution 3 1/2 or 4 1/2 Digits
Setting the Line Main Frequency
Setting the 24-Hour Clock
Saving Setup Options
Returning to Factory Defaults
Introduction General Maintenance
Maintenance
Testing the Fuses
Replace F2 if Replace F1 if Displayed
Replacing the Batteries
Battery and Fuse Replacement
User-Replaceable Parts
Replacing the Fuses
Case of Difficulty
MP8 MP9
Safety and Compliances
Specifications
Physical Specifications
Feature Summary
Basic Specifications
Detailed Accuracy Specifications
KHz-100 kHz
Accuracy Function
45-1 kHz
20 kHz
DC a
500.00 Ω
Capacitance Diode Test
MIN MAX AVG
Burden Voltage A, mA, µA
Frequency Counter Sensitivity
Input Characteristics
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