Fluke 289 - Manual (Page 35)

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