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Table of Contents
Title Page
Introduction.......................................................................................... 1
Contacting Fluke .................................................................................. 1
Safety Information................................................................................ 2
Safety Terms..................................................................................... 2
Symbols............................................................................................ 2
Safety Precautions ............................................................................ 3
Front and Rear Panel Overview............................................................ 6
Measurement Function Knob ........................................................... 9
Input Connectors .............................................................................. 10
Operating Basics................................................................................... 11
Safe Test Lead Connections ............................................................. 11
Using Procedures in this Section...................................................... 12
Voltage Measurements ..................................................................... 13
Application: Using AC DC and AC+DC in Volts Mode.............. 14
dB and dBm Voltage Measurements ................................................ 15
Application: Using a Reference Value Other than Default
1.000 V RMS in dB Mode............................................................ 15
Application: Using Voltage in a Circuit as the Reference
Value in dB Mode ........................................................................ 15
Frequency Measurements................................................................. 16
Negative Edge Triggering............................................................. 16
Positive and Negative Duty Factor............................................... 16
AC vs. DC Coupled Frequency Measurements ............................ 17
Changing Voltage Range in Frequency Mode.............................. 17
Resistance Measurements (Ohms, Continuity, Diode,
and 50 Ω Range)............................................................................... 18
Application: Measuring Low Resistance Values.......................... 19
Capacitance Measurement................................................................ 19
Temperature Measurements (185 only)............................................ 20
Helpful Tip: Increased Temperature Accuracy............................. 20
Current Measurements...................................................................... 21
Button and Softkey Overview .............................................................. 22
Yellow (Shift) Button....................................................................... 22
RANGE Button ................................................................................ 22
MIN MAX (Minimum, Maximum) Button ...................................... 23