B
B
G
G
D
D
C
C
o
o
u
u
n
n
t
t
T
T
i
i
m
m
e
e
There are four options provided for background count time.
Background radiation affects readings; a new background count
is necessary when background environment or the material
measured changes.
A one-minute background count is recommended for
measurements depths two inches through eight inches.
For EGauges that offer depths of 9-12 inches, the
background count is required for these depths. A
minimum one- minute BGD count will be required by
default. These deeper measurements are more
sensitive to changes in background radiation.
1. 1 min
2. 2 min
3. 3 min
4. 4 min
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