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PG. 21
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You may zoom this plot by drawing a square from upper left to lower right (click and hold left mouse
button) that defines the zoom region. To zoom completely out, attempt to draw a square from lower
right to upper left. Right click on the plot for options such as copy and print. The plot can be scrolled
with the mouse while the Control key is held depressed. Copies of the plot can be obtained by right
clicking on the plot and selecting Copy from the pop-up menu.
Different DATA Folders can be selected during one session of the program. In this case the software
produces multiple plots. Unfortunately, the plots are presented exactly on top of one other and so
when a new plot appears it is not obvious that the old plot is still there. It is, just move the new plot to
see previous plots.
The program can be re-run at any time. If an already processed DATA Folder is selected, then the
program simply reads the miniWIPER’s measurement files again. End the miniWIPERPlot program
by closing the window.
In general, the recorded information will not be useful to customers, save that it shows battery
voltage and # of wipes. However, it may prove useful should a wiper fail. Here is a list of information
as well as why it is useful.
T E M P E R A T U R E
The temperature within miniWIPER at the time of the wipe. +/- 5 deg C.
B A T T E R Y
Battery voltage measured just prior to beginning a wipe. Note that calibration events immediately
precede wipes and draws the voltage down from its pre-wipe value. Useful to see battery condition
and useful for calculation of source resistance which rises dramatically at end of life.
F O R W A R D S T A R T C U R R E N T
The highest current observed during the first 1 second of motor operation as forward wipe begins.
Useful to identify sticky mechanical systems.
A V E R A G E C U R R E N T
The average current after 1 second of operation. Useful to determine average mechanical system
friction.
R E V E R S E S T A R T C U R R E N T
The highest current observed after 1 second of motor operation as the back wipe begins. Useful to
identify peak mechanical system friction.
