MBW SCS2 - Manual (Page 6)

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NTRODUCTION
The Soil Compaction Supervisor 2 is a low cost, easy to use
instrument that assists with optimizing the compaction of
backfill by eliminating over and under compaction. The Soil
Compaction Supervisor 2 also provides the ability to record
compaction data for analysis and quality control.
The system consists of a portable, battery powered Soil
Compaction Supervisor 2, a disposable sensor, and a
reusable data key. In use, the sensor is placed in the bottom
of the excavation and its cable is connected to the Soil
compaction Supervisor 2. As each lift is compacted the
sensor sends a signal to the Soil Compaction Supervisor 2
which determines when the maximum compaction has been
achieved under the current conditions. When the lift has
been compacted to the optimum level, the Soil Compaction
Supervisor 2 signals the user to stop and the data for that lift
is recorded. The Soil Compaction Supervisor 2 has internal
memory, so it can record data either with or without the data
key in place. This data can later be downloaded to a
personal computer with the MBW Key Reader
CAUTION
The use of the SCS2 (Soil Compaction
Supervisor 2) does not, in any way lessen
the importance of following good soil re-
instatement practices. Backfill soils
MUST be acceptable for specific backfill
purposes. Lift thickness MUST be con-
trolled relative to soil type and capacity of
the compaction device. Soils MUST have
moisture contents in a reasonable range
relative to optimum. The compaction
equipment MUST be in good operating
condition. Failure to consistently apply
the accepted principles of good soil rein-
statement can result in failure, with or
without the use of quality control instru-
mentation.