Fluke 287 Fluke 287 and 289 Multimeter Users Manual - Page 35

Measuring DC Voltage, DC Voltage Measurements

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Measuring DC Voltage The Meter displays dc volts values as well as their polarity. The bar graph for dc voltage measurements is a zero-centered bar graph. Positive dc voltages cause the bar graph to fill to the right of center while negative dc voltages fill left of center. To measure a dc voltage with the Meter, rotate the rotary switch to the U or N position as shown in Figure 12. The Meter's dc volts function offers a number of modes to provide more details about a dc signal. Pressing the softkey labeled Menu opens a menu of items that can be used to modify the basic dc voltage measurement. Refer to the appropriate section in this manual to learn more about each menu item. To clear all modes and return to the basic volts dc measurement, press the softkey labeled Menu. Move the menu selector to the item labeled VDC. Press the softkey labeled VDC to clear all functions and modes. True-rms Digital Multimeters Making Measurements 8:10pm 06/13/07 9.752 VDC Auto Range -50 -40 -30 -20 -10 0 10 20 30 40 50 VDC Menu Save Setup V est09.eps Figure 12. DC Voltage Measurements 25

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True-rms Digital Multimeters
Making Measurements
25
Measuring DC Voltage
The Meter displays dc volts values as well as their polarity. The
bar graph for dc voltage measurements is a zero-centered bar
graph. Positive dc voltages cause the bar graph to fill to the right
of center while negative dc voltages fill left of center.
To measure a dc voltage with the Meter, rotate the rotary switch
to the
U
or
N
position as shown in Figure 12.
The Meter’s dc volts function offers a number of modes to
provide more details about a dc signal. Pressing the softkey
labeled
Menu
opens a menu of items that can be used to modify
the basic dc voltage measurement. Refer to the appropriate
section in this manual to learn more about each menu item.
To clear all modes and return to the basic volts dc measurement,
press the softkey labeled
Menu
. Move the menu selector to the
item labeled
VDC
. Press the softkey labeled
VDC
to clear all
functions and modes.
Menu
VDC
Save
Setup
Auto Range
50 VDC
30
20
10
0
-10
-20
-30
-40
-50
40
9.752
8:10pm
06/13/07
V
V
est09.eps
Figure 12. DC Voltage Measurements