Reading analog inputs for a breif period of time

trvslamm:
here all 3 sensors readings are fed into arduino then there is a 1 second display and the loop starts back over. what I want to happen is once the first sensor has breached ( < 200) use the information from all three sensors at that time then disregard all other readings for 30 seconds

Record the time when the first sensor breach is detected.

If the current time is within 30 seconds of the first sensor breach, disregard all other sensor readings.