Ultra Start 15xx Manual de usuario Pagina 54

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TDC Ultra User’s Manual
5-8
There is no data stored in the counter until after the first interval. If, after
starting a study, you realize that you set one of the parameters wrong,
you can turn off the TDC Ultra and restart the study correctly. However,
once an interval has finished, the study is stored in memory. So, if you
realize after the first interval that you have made a mistake, you need
to either make a note to the person downloading the data to ignore that
study, or clear the TDC Ultra’s memory, as described on page 2-9.
Viewing Data While Recording
You have two display options while you are doing the study. The status
screen shows the current time and the amount of time left in the interval,
among other things. Normally you do not look at the screen while you
are doing a study, you are busy looking at the traffic. All you really need
to know is the time so that you know when the study is over.
However, some people like to be able to see the data accumulate in
memory, especially if they have done studies for years with mechanical
counters that show the totals change as the buttons are pushed. Some
people just don’t believe the data is registered if they can’t see any
evidence for themselves.
If you press the TAB key while counting the display changes to show
the totals for each of the primary movements, buttons 1-16. Each row
shows one approach. Note that totals are only shown for the number of
classes in the scheme you are using. In the example below, only 13 totals
are shown since the FHWA’s Scheme F was selected for the study.
If you press the TAB key a second time, the display changes to show
the totals for each of the secondary movements, BANK1 1-16. This is
designated by the number before the direction changing to a 2. If you
press the TAB key a third time, the display changes to show the totals
for each of the tertiary movements, BANK2 1-16, with the number
before the direction changing to a 3.
1N : 000 000 000 000
1E : 000 000 000 000
1S : 000 000 000 000
1W : 000 . . . . . . . . .
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