Model 3430
3-13
✓
Wearing a radiation badge and safety glasses (or other
locally approved safety devices),
step on the plate and hammer
the drill rod at least 50 millimeters (2 in) deeper than the desired
test depth. The drill rod increments include the additional depth.
✓
Remove the drill rod by pulling straight up and twisting the
extraction tool.
Do not loosen the drill rod by tapping from
side to side with a hammer.
This will distort the hole or cause
loose material to fall into the hole.
✓
To ensure accurate placement of the gauge, before removing the
scraper plate mark the test area using the drill rod as shown in
Figure 3-5.
✓
Carefully pick up the scraper plate and place the gauge on the
surface prepared by the plate. Insert the source rod into the hole
made by the drill rod.
Use care when inserting the source rod,
trying not to disturb the soil around the hole.
✓
Lower the source rod into the hole. Release the trigger and lock
the source rod into the correct position. A
click
should be heard
when the source rod is locked into position.
✓
Gently slide the gauge toward the keypad so the source rod
makes contact with the wall of the hole.
MARK FOR SCRAPER
PLATE CENTER
EDGE
MARKS
MARK FOR DRILL
ROD CENTER
METHOD 1
METHOD 2
Figure 3-5. Marking the Test Area
SCRAPER
PLATE
SCRAPER
PLATE
G
AUG
E
O
P
E
RAT
IO
N
Содержание 3430-M
Страница 9: ......
Страница 14: ...xii NOTES...
Страница 19: ...Model 3430 1 5 Figure 1 1 Model 3430 Gauge and Accessories INTRODUCTION...
Страница 22: ...1 8 NOTES...
Страница 25: ...Model 3430 2 3 Figure 2 1 Direct Transmission Geometry Figure 2 2 Backscatter Geometry OPERATION THEORY...
Страница 26: ...2 4 Figure 2 3 Backscatter Surface Density Effects Top Layer Effect Curves...
Страница 28: ...2 6 Figure 2 4 Effect of Moisture on Depth of Measurement...
Страница 48: ...3 20 NOTES...
Страница 62: ...4 14 NOTES...
Страница 66: ...5 20 D xxxx M xxxx Use keys Moist R xxxx to view data Moist Avg xxxx to view data...
Страница 88: ...A 14 NOTES...
Страница 111: ...Model 3430 C 17 Figure C 2 3430 Gauge Assembly MAINTENANCE...
Страница 113: ...Model 3430 C 19 Figure C 3 3430 Gauge Base Mechanical Assembly Figure C 4 3430 Source Rod Handle Assembly MAINTENANCE...
Страница 115: ...Model 3430 C 21 Figure C 5 3430 Gauge Preamplifier Assembly MAINTENANCE...
Страница 117: ...Model 3430 C 23 Figure C 6 3430 Gauge Scaler Assembly MAINTENANCE...
Страница 128: ...E 2 Date MS DS Date MS DS STANDARD COUNT LOG Gauge Serial Number...
Страница 129: ...Model 3430 E 3 Date MS DS Date MS DS STANDARD COUNT LOG Gauge Serial Number STANDARD COUNT LOG...
Страница 130: ...E 4 Date MS DS Date MS DS STANDARD COUNT LOG Gauge Serial Number...
Страница 140: ...Index 8 NOTES...
Страница 141: ...Model 3430 Warranty 1 NOTES WARRANTY...