REFERENCE
STANDARD
BLOCK
METAL
BUTT
PLATE
5. 3440 OPERATIONS
Figure 5–1. Gauge and Reference Standard Block
Position for Trench Offset
Place the gauge on the reference standard block in the trench with the
source rod in the SAFE position.
Begin the one-minute count by pressing 〈START/ENTER〉.
The density and moisture trench offset constants will be calculated,
enabled and stored. If the gauge is not to be used for trench
measurements immediately, disable the offset.
To enable or disable an offset, press 〈3〉 from the display on page 5–3.
Using the numeric keys, select the offset for enabling/disabling. The
gauge will display the status of the offset and inquire if the operator
wishes to change the status. Answer the inquiry by pressing either
〈YES〉 or 〈NO/CE〉. The gauge will enable/disable the offset and
return to the READY display.
Model 3440-L 5–11
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