12-2
IM WT1801-01EN
Bar Graph Display Range (Start Order/End Order)
• You can configure the range of harmonic orders to show in a bar graph.
• The range is the same for bar graphs 1 to 3.
Starting Harmonic Order (Start Order)
• You can select a value between 0 and 490. However, the starting harmonic order cannot be more than 10
orders less than the ending order.
• When the measurement function of a bar graph is Φ, order 0 has no values, so you cannot display it in the
bar graph.
• When the measurement function of a bar graph is ΦU or ΦI, orders 0 and 1 have no values, so you cannot
display them in the bar graph.
Ending Harmonic Order (End Order)
You can select a value between 10 and 500. However, the ending harmonic order cannot be more than 10
orders greater than the starting order. You cannot display bar graphs containing harmonic orders that are greater
than the maximum measurable order (see section 6.6 in the getting started guide, IM WT1801-03EN).
Display Item (ITEM)
Bar Graph Number (Item No.)
Select the number, from 1 to 3, of the bar graph that you want to select.
Function (Function)
You can select the measurement function to display from the following options.
U, I, P, S, Q, λ, Φ, ΦU, ΦI, Z, Rs, Xs, Rp, and Xp
Element (Element)
You can select the element from the following options. The available options vary depending on the installed
elements.
Element1, Element2, Element3, Element4, Element5, and Element6
Bar Graph Display Scale
Setting the Vertical Scale Mode (Scale Mode)
You can set the upper and lower limits of a bar graph window. Set the display mode to one of the options below.
• Fixed
• When the function is U, I, P, S, or Q, the scaling is logarithmic (Log).
• When the function is λ, Φ, ΦU, ΦI, Z, Rs, Xs, Rp, or Xp, the scaling is linear (Linear).
• The upper and lower limits of the bar graph window are automatically determined based on the maximum
and minimum displayed trend data values. The lower and upper limits for λ are –1 and 1. For Φ, ΦU, and
ΦI, the minimum and maximum values are –180 to 180°. Negative values correspond to phase lagging and
positive values correspond to phase leading.
• Manual
You can set the type, upper limit, and X-axis position of the vertical scale.
Vertical Scale Type (Vertical Scale)
This setting is valid when the vertical scale mode is set to Manual. You can set the scale type to linear (Linear) or
logarithmic (Log).
Upper Limit (Upper Scale)
This setting is valid when the vertical scale mode is set to Manual. You can set the upper limit to a value from 0
to 9.999 T.
X-Axis Position (X Axis Position)
This setting is valid when you set the vertical scale mode to Manual and the vertical scale type to Linear. You
can set the point at which the Y-axis coordinate is 0 to Bottom (the bottom of the screen) or Center (the center of
the screen).
12 Bar Graph Display (Option)
