5.12 Viewing a Trend Graph
99
Chapter 5 Viewing Measurement Data
5
2
Select either [Vertical] or [Horizontal] with the cursor and press the
[ENTER] key.
The [Magnify Selection] dialog box
will be displayed.
3
Select the desired zoom factor with the cursor keys and press the
[ENTER] key.
The other axis can be changed in the same manner.
• You cannot select demand or harmonic parameters (other than
THD) on the time-series display.
• Data for up to 288 time intervals can be displayed on one screen.
If this number is exceeded, older data will be discarded.
For example: Save interval time setting: 1 sec.
Amount of time that can be displayed on 1 screen: 4 minutes 48
se
co
nds
Save interval time setting: 5 min.
Amount of time that can be displayed on 1 screen: 24 hours
• Time-series data used for display purposes will b
e lost if the
power goes out during recording since that data is not backed
up. (However, this is not problematic since the same data will
have been saved on the SD memory card or in the instrument’s
internal memory.) The time-series data will be updated when
power is restored.
• The Plus sign “+” of reactive power (Q) represents a LAG,
whe
r
eas the minus sign “−” represents a LEAD.
• When measured values exceed the display range, the back-
ground color is changed.
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