Fluke 289 - Manual (Page 27)

True-rms Digital Multimeters
Capturing Minimum and Maximum Values
17
Note
For input signals that are noisy or change rapidly, turn
on the Smoothing mode to display a steadier reading.
See the “Enabling and Disabling the Smoothing Mode”
section later in this manual.
To extend battery life during MIN MAX recording, the Meter will
enter a battery saver mode. See the “Setting Backlight and Auto
Off Timeouts” section for more information on the battery saver
mode.
To activate the MIN MAX mode, press M. As shown in
Figure 6, the Meter displays e at the top of the
measurement page, and the MIN MAX start date and time along
the bottom of the page. In addition, the recorded maximum,
average, and minimum values appear in the secondary display
with their respective elapsed times.
Restart
119.81 VAC
Stop
Start : 06/07/07 7:00 pm
Maximum
127.09
119.50
110.23
Average
Minimum
Auto Range
500 VAC VAC
VAC
00:03:17
01:10:09
00:59:59
VAC
8:10pm 06/07/07
Min Max
est42.eps
Figure 6. MIN MAX Record Display
To stop a MIN MAX recording session, press M or the softkey
labeled Stop. The summary information in the display freezes,
and the softkeys change function to allow saving the collected
data. Pressing M again or the softkey labeled Close exits the
MIN MAX record session without saving the collected data.
Note
Turning the rotary switch before saving the MIN MAX
recording data will cause all the accumulated data to
be lost.
To save the MIN MAX screen data, the MIN MAX session must
be ended by pressing the softkey labeled Stop. Next, press the
softkey labeled Save. A dialog box opens where the default
saved name can be selected or another name assigned. Press