Face Dipstick 2200 Series, Operator'S Manual, Page: 33 / 107

C
HAPTER
4 COLLECT
4-9
WALK THE DIPSTICK DOWN THE TEST LINE
Single-tap the "Start" button on the screen and hold the Dipstick steady, then press the Trigger and
wait until the Dipstick takes the first reading. You always press the trigger from front to rear.
Once a reading has been captured, the beeper will sound. This is the signal for you to rotate the
Dipstick. The large reading number tells you how many steps you have taken. You must press the
Trigger button before the Dipstick will attempt to collect the next reading. The Dipstick will
produce a graph from any length line, as small as 1 step (normally 1-ft, 300mm, or 250mm) but
you must collect at least 37 ft or 11.1 meters of data for the Dipstick to have enough data to
produce an IRI.
Readings will be recorded as the Dipstick is "walked" along the survey line by pivoting the
instrument about its forward point. If the Hardware Setting has been set for the Trigger, you must
press the Trigger before the Dipstick will capture the reading. If the Hardware Setting has been set
for Automatic, the readings will be taken automatically, as determined by the 2277 Tablet, using
the capture mode you selected earlier.
CHECKING FOR FALSE READINGS
As you walk the Dipstick to take readings, check the 2277 Tablet's screen periodically. If you are
collecting very long runs, mark spots on the survey line periodically with the reading numbers for
reference using the lumber crayon or "keel". Check to be sure that the reading number on the
Tablet's screen is an odd number when the start end of the Dipstick is forward after a reading has
been taken, and an even number when the battery end of the Dipstick is forward after a reading has
been taken. If it shows an even number after beeping with the “start” end forward, you may have
either collected a “false reading”, or you may have skipped a reading. For more information on
identifying and correcting false readings, see the "False Readings" section of the
TROUBLESHOOTING Chapter 8 and also in the "Edit Readings" section of the PROCESS
Chapter 5.
END THE RUN
To terminate data collection and view the profile graph and IRI for the run, tap the "Stop" button
on the screen. The 2277 will automatically display a graph of the data you have just collected.