Ultra Start 15xx Manual de usuario descargar pdf (Pagina 68)

TDC Ultra User’s Manual

7-6

down until the front of the next car crosses the line. The display shows

the time in seconds of the current gap as it is being measured, although

there is not much need to watch the display while doing the study.

If you are also counting the cars, then you need to press the COUNT

button once for every vehicle that goes by. The display shows the cur-

rent count value as well.

If you are doing a two direction study, then you need to duplicate the

above procedure for Direction 2.

The TDC Ultra is also keeping track of the combination gaps, when

both buttons are pressed simultaneously. There is no indication on the

display for combination gaps, but they are being recorded along with

the other two gaps.

Ending the Study

When you get to the last interval, keep recording data until the interval

ends, signaled by the triple beep. Once you hear this, turn the TDC

Ultra off.

Remember, the only way to stop a study is to turn the power off.

Video Mode Option

Gap Studies can also be performed in 'Video' mode. Refer to page 2-15

for more information on this.

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Ultra Start 15xx Manual de usuario Pagina 68