Model 3440
4
–
19
Recording the Standard Count
Troxler recommends keeping a daily log of the moisture and
density standard counts (see Appendix E for a sample log).
To verify gauge stability, compare the daily standard count to a
reliable reference as follows:
i
During the first four days of operation of a new or
recalibrated gauge, compare the daily standard count to the
factory-calibrated values.
i
After the first four days of operation (or after taking four
standard counts), compare the daily standard count to the
average of the last four counts. Acceptable standard count
limits are:
r
1% each day for DS (density standard) and
r
2% each day for MS (moisture standard).
After recording the standard counts, press
¢
YES
²
to return to the
Ready
mode.
NOTE
The factory standard count values should be used as
a reference if the daily standard counts are ever in
question. Be sure to refer to the most recent
calibration report for the gauge in question.
Содержание RoadReader 3430
Страница 14: ...1 6 Figure 1 Model 3440 Gauge and Accessories...
Страница 19: ...Model 3440 2 3 Figure 2 Direct Transmission Geometry Figure 3 Backscatter Geometry...
Страница 20: ...2 4 Figure 4 Backscatter Surface Density Effects Top Layer Effect Curves...
Страница 22: ...2 6 Figure 5 Effect of Moisture on Depth of Measurement...
Страница 164: ...F 2 STANDARD COUNT LOG Gauge Serial Number _____________ Date MS DS Date MS DS...
