Model 3450
Appendix C–9
TROUBLESHOOTING
GAUGE FAILS STANDARD COUNTS
✓
Ensure the source rod opening on the bottom of the gauge is
completely closed or covered by the tungsten sliding block. If
any opening is visible, the sliding block should be cleaned.
Refer to page A–11 for instructions. If the sliding block still
does not close completely, contact the nearest Troxler Service
Center.
✓
Ensure that the standard count site is asphalt, concrete, or
compacted soil at least 4 in. (10 cm) thick.
✓
Check for 10 ft (3 m) clearance around gauge.
✓
Check that any sources are at least 33 ft (10 m) away.
✓
Ensure the source rod handle is fully latched in the
SAFE
(shielded) position.
✓
Check that the gauge is positioned correctly on the reference
standard block (see Figure 4–1 on page 4–3).
✓
Perform the standard count again. If the standard count still
fails, contact the nearest Troxler Service Center.
NO DENSITY READINGS
✓
The most likely reason for no density readings is an electronic
problem, such as a failure of the detector preamplifier.
However, there is a remote possibility that the radioactive
source could have become dislodged or lost. Refer to the
section on page A–9 for instructions on
inspecting the source rod.
C. T
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Summary of Contents for RoadReader Plus 3450
Page 7: ...Model 3450 vii NOTES...
Page 13: ...xii NOTES...
Page 17: ...1 4 GAUGE PARTS AND ACCESSORIES Figure 1 1 Model 3450 Parts and Accessories...
Page 23: ...2 4 Figure 2 1 Effect of Moisture on Depth of Measurement...
Page 53: ...3 28 NOTES...
Page 169: ...Appendix E 2 STANDARD COUNT LOG Gauge Serial Number Date Moisture MS Density DS1 Density DS2...
Page 171: ...Appendix E 4 STANDARD COUNT LOG Gauge Serial Number Date Moisture MS Density DS1 Density DS2...
Page 173: ...Appendix E 6 STANDARD COUNT LOG Gauge Serial Number Date Moisture MS Density DS1 Density DS2...
Page 175: ...Appendix E 8 STANDARD COUNT LOG Gauge Serial Number Date Moisture MS Density DS1 Density DS2...
Page 181: ...Appendix G 4 NOTES...
Page 187: ...Appendix H 6 NOTES...
Page 199: ...Index 12 NOTES...