Fluke 289 - Manual (Page 61)

True-rms Digital Multimeters
Using Memory
51
Note
X-axis time labels are shown in elapsed time while the
timestamp shown under the cursor is an absolute time
Table 7. Trend Data Display
01/16/08 09:43:17am x1
40
0:15 0:30 0:45
HH:MM
23.456 VAC 08:13:05 6/28/07
1:00 1:15 1:30
30
20
VAC
10
0
7
1
2 4 3
5
6
est35.eps
Item Description
A Cursor
B Start date and time
C Trend line
D Zoom level.
E
Elapsed time. Units in hours and minutes, or
minutes and seconds.
F Time scale legend (HH:MM or MM:SS)
G
Measured value and timestamp of selected
record.
Zooming in on Trend Data
While viewing trend data, pressing 7 or 8 zooms in or out
respectively on the data around the cursor. Each press of 7
reduces the x-axis time period by one half to reveal more details.
Each press of 8 doubles the time period until all the recorded
data is displayed. The zoom level is displayed in the upper-right
hand corner of the display. X1 indicates the trend of the complete
recording period is displayed. X2 is one-half the recording time.
X3 is one-fourth the recoring time. This magnification can
continue until the x-axis time period is one second.
Deleting Stored Measurement Data
Deleting data stored in the Meter’s memory is performed through
the save menu. Press the softkey labeled Save. Use the softkey
labeled Prev and Next to select an item for deletion.
The Meter separates stored data into four different categories:
Measurement, MIN MAX, Peak, and Recording. Use the cursor
buttons to position the menu selector next to a saved data
category and then press the softkey labeled View to view the
item.
Pressing the softkey labeled Delete All will delete all stored data
under the selected saved data category. Or press the softkey
labeled View. After accepting a confirmation message, use the