Making Measurements; Introduction; Measuring Voltage - Fluke 87 Series IV User Manual

Introduction

Chapter 3 explains how to make measurements. Most
measurement functions can be selected by using the
rotary switch.
White letters or symbols identify primary functions; blue
letters or symbols identify alternative functions. Press the
blue button to access these alternate functions.
Frequency-related functions can be selected (Hz, duty
cycle, and pulse width) when the rotary switch is in any
volts, amps, or resistance position.

Measuring Voltage

Voltage is the difference in electrical potential between
two points. The polarity of ac (alternating current) voltage
varies over time, while the polarity of dc (direct current)
voltage is constant over time.

Making Measurements

Ranges available in volts functions are:
5.0000 V, 50.000 V, 500.00 V, 1000.0 V
50.000 mV, 500.00 mV, and 5000.0 mV
Readings in the 5000.0 mV range overload (
mV ac or 3000 mV dc. The 5000.0 mV range overlaps
the 5.0000 V range to provide greater resolution with
Fluke accessories that provide a mV output. For
example, the Fluke 80i-1000 Current Clamp provides 1
mV ac per amp measured up to 1000 amps.
Chapter 3
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3-1