The first screen you will see in Segregation Mode appears as follows:
Segregation Mode
1A
1) Read
2) Calc.
The code at the end of the first line tells which location and reading are about
to be performed. For example, the “1A” on the previous screen indicates that
you are at the first location and are taking the first, or ‘A’, reading there. Two
readings (‘A’ and ‘B’) are taken at each location and the average value is used.
Taking the average of two readings is required for nuclear gauges, which exhibit
poor repeatability. The PQI has excellent repeatability so two readings should
not be required, but two readings are taken for compatibility with existing
nuclear test procedures.
To start using Segregation Mode
1) Place the PQI in the first desired location
2) Press ‘1’ to “Read”
3) Remove your hand from the gauge
4) Wait for the reading to be taken (this will take approximately 5
seconds).
After the reading has been taken, the screen will appear similar to the following
(a description of each value is given in the Continuous Mode section):
Segregation Mode
1A
1) Accept
2) Reject
H2O 2.7
142.4 º F
D: 147.4Lb
( 93.1%)
You should press ‘1’ to accept the reading or ‘2’ if the reading looks suspicious
and you want to retake it. If you accept the reading, the PQI will prompt you to
take reading “1B”, the second reading at location #1. After accepting the reading
at location “1B”, you should move the PQI to the next location, and take reading
“2A”.
After you have taken all the readings, press ‘2’ to calculate the results. The
results will be displayed on a screen similar to the following:
Segregation Mode
1A
Results
1) Next Val
2) Done
Lo: 142.7lb
23
www.transtechsys.com - 1-800-724-6306
Summary of Contents for PQI 301
Page 1: ...Pavement Quality Indicator Model 301 Operators Handbook ...
Page 36: ... ...
