CHAPTER 4 COLLECT
4-4
RPH (Survey Speed, in
R
R
R
eadings
P
P
P
er
H
H
H
our)
Note: RPH is used only when you are NOT using the Trigger,
so you can ignore RPH if you are using the Trigger.
The Survey Speed setting changes the length of time between successive Dipstick
readings while in the Auto Read Mode. As soon as the Dipstick starts to move to the
next reading position, the LCD screens will go blank and the 2277 Tablet stops polling
the output for a preset period of time determined by the selected survey speed. This
blanking period allows the operator to rotate the unit without any chance of taking a
false reading. After this preset pause, the 2277 Tablet again starts to poll the internal
sensor. Horizontal lines across the L.C.D. screens indicate “Blank” out time, or
“Sleep” time. When a single short vertical line appears, the Dipstick is “polling” the
sensor. (trying to get a Reading) When you first start using the Dipstick, you should
start with the “600 readings per hour” setting. After you gain some experience, if you
find yourself waiting for the Dipstick to collect a reading, you should switch to 750
readings, and then 900 readings per hour, and even to 1150 readings per hour as you get
even faster. Again, if you are using the Trigger, you can ignore RPH.
√ TRIGGER
Putting a check mark (√) into this box means that you are going to control data acquisition by
using the Trigger. This is the normal method for collecting data using a Road Dipstick.
TYPE
This field allows you to change your Dipstick from Imperial mode to Metric mode.
You can change between Metric and Imperial and use different foot spacings in either
mode. Make sure that this setting corresponds to the type and spacing that you are
using to collect data.
WARNING
Be sure you know what you are doing before changing the Dipstick between Imperial and Metric,
or changing the footspacing.
FOOT SPACING
This field tells the computer what distance you set between the Dipstick’s feet. It is only changed
when you actually move the feet to other spacings from the original configuration. Do not change
this setting without knowing the exact footspacing or you may collect bad data. Entries are
made in inches (for the Imperial Dipstick) or in mm (for the Metric Dipstick). When you change
the foot spacing in the RFCollect Program, the software will automatically adjust the Dipstick
readings to match the newly set footspacing.
Here’s how Foot Spacing works: You screw the “Feet” into the holes on the underside of the
Dipstick, or to the Variable Spacer Bar. There are three pairs of holes built into the metal bar on
the bottom of the Dipstick. There is one pair that is exactly 12.000 inches apart, one pair that is
300.0 mm apart, and one pair that is 250.0 mm apart. Each one of these holes is marked, either
“12”, “300”, or “250”.
Screw the Moon Feet into the appropriate pair of holes and tighten them securely. (Your
Dipstick came from our lab already set up for the Foot Spacing your company asked for)
Using SETTINGS/HARDWARE, verify that the Type (Imperial or Metric) and Foot
Spacing (12”, 300 mm, or 250 mm) matches the actual foot spacing on the Dipstick.
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