Tire Inflation Graphs #36 and #37 explained
These two Graphs visually display the breakdown of tire inflation relative to their standard values. What
is displayed is the number of tires that fall into target ranges.
All tires that meet the report filter criteria and have actual pressure readings (values greater than zero)
are included. Only the last pressure reading in the tire’s inspection history is used, therefore matching
the values shown in the Tire Inflation Report #10.
Graph #36 is a pie chart display and Graph #37 is a more detailed bar display.
Graph #36: Tire Inflation Pie
This graph counts and displays tires that fall into user selectable pressure ranges.
There are three (3) display methods available:
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
Two (2) detailed breakdown displays
o Deviation (range) from the recommended pressure
o Deviation from a fixed target pressure
Two (2) simplified displays
o Deviation from user defined absolute pressure limits
o Percentage deviation from user defined value
Selection of the four methods is done via the popup screen that appears when you click the report
wizard icon.
When the Recommended Pressure option is selected there is no other input value open. All tire
pressures are compared to their recommended value and counted into one of 2 groups of 5 sub-groups
each. See explanation on the picture below.
When the Fixed Target Pressure is selected then the target value to its right opens up for user input. All
tire pressures are compared to this target value and counted into the respective group.
The groups are fixed according to standard Goodyear specifications and cannot be changed by the user.
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
Above 0 -5 PSI, 6 – 10 PSI, 11 – 20 PSI, 21 – 30 PSI and over 30 PSI
Below 0 -5 PSI, 6 – 10 PSI, 11 – 20 PSI, 21 – 30 PSI and over 30 PSI
For systems that operate in units other than PSI, as chosen on the Report Filter Screen, the equivalent
value is used.
With EM Track-III release 3.5.25 there is the additional Simplified display method available. With this
method you will receive only three display groups: Over, Correctly or Under inflated tires.
How your tire pressures are evaluated is determined by the sub-method and values you enter.
You may choose absolute pressure ranges or a percentage deviation. Separate ranges are available for
Hot readings and Cold readings.
In the example below we selected Percentage Deviation from the recommended pressure of 0% to +20%
for hot readings and -10% to +15% for cold readings
Graph #37: Tire Inflation Bar
The Tire Inflation Bar display is similar to the detailed Pie display. The difference is only the visual
presentation of the 5 group values.
In response to activating the Report Wizard you may choose either recommended pressure values or a
fixed target pressure to be used
The resulting display looks as follows
Unlike the detailed Tire Inflation pie described above, we only show 5 range legends.
The numbers next to the legend are the total number of tires that fall in that range, both above and
below.
The five (5) blue bars are counts of tires in the over inflated range, while the orange bars depict under
inflated counts as a negative number.
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