User`s guide

Chapter 3 85
Setting Measurement Conditions
Setting the Scales
3. Setting Measurement
Conditions
Setting the Scales
Auto scale
The auto scale function is used to tailor each scale (scale/division and the reference line
value) automatically in such a way that traces will appear at the proper size on the screen
for easy observation.
Single Trace Auto Scale
Follow the procedure below to perform the auto scale function on a specific trace.
Step 1. Press (or ) and (or ) to select the trace for
which the auto scale function will be performed.
Step 2. Press .
Step 3. Press
Auto Scale.
Auto Scale on All Traces Within a Channel
Step 1. Press (or ) to select the channel for which the auto scale function
will be performed.
Step 2. Press .
Step 3. Press
Auto Scale All.
Manual scale adjustment on a rectangular display format
For a rectangular display format, four parameters are used to manually adjust the scales
(Table 3-3 and Figure 3-11).
Table 3-4 Adjustable scale features on a rectangular display format
Adjustable feature Description
Divisions (
Divisions) Defines the number of divisions on the Y-axis. An even number
from 4 to 30 must be used. Once set, it is commonly applied to
all traces displayed in any rectangular format within that
channel.
Scale/Division (
Scale/Div) Defines the number of increments per division on the Y-axis.
The value applies only to the active trace.
Reference position
(
Reference Position)
Defines the position of the reference line. The position must be
specified using the number assigned to each division on the
Y-axis starting at 0 (the least significant) running up to the
number of divisions being used (the most significant). The
position applies only to the active trace.
Reference line value
(
Reference Value)
Defines the value corresponding to the reference line. It must be
set using the unit on the Y-axis. The reference line value applies
only to the active trace.