Monarch Instrument DC 2000 - Manual (Page 36)

Page 3-6
Chapter 3 Getting Started
3.2.5.4 Trend Window
The trend window is the one that looks like a “paper” recorder. It has traces or pens and emulates the paper
chart, moving the “paper” across the screen, and is shown in the vertical mode in Figure 3-7 below. The
direction of the trending can be vertical, from top to bottom, or horizontal, from right to left. The direction
can be changed in the “PROGram - Chart/Pens - Direction” menu (Chapter 5.5.4). There may be as many
as twelve pens on the chart at a given time. Pens are assigned to the chart in the “PROGram - Chart/Pens
- Pens” menu (Chapter 5.5.3).
Consider the vertical chart below, the same features are found on the horizontal chart. Along the top of the
chart are the pen pointers, one for each pen that is on. These track the real time value of the points and
identify the origin of the trace.
There are grids on the screen, both horizontal and vertical. In the above example, the vertical grid spacing is a
function of the divisions on the chart scales. The horizontal grid lines indicate the scales for the chart, and if
there is more than one scale set, they alternate. On the full screen trend view, the scales can be toggled through
by pressing the middle of the scale (top center of the display). Each scale has its end points marked along the
top of the chart with the scale value, the 0.00 and 1.00 indicating that the trace has a value of zero when it is
hard to the left, and 1.00 when it is hard to the right. There is a marker on top of the pen pointers to indicate
which pens reference the current scale. Thus when interpreting the data for pens 1 and 2 use a value of 0 to
1.00 full scale. When the scale changes, so will the markers on the pen pointers to indicate the pens for the
next scale. Also along the top of the chart are the scale UNITS.
Figure 3-7 Vertical Trend Window
S S