MBW SCS2 - Manual (Page 7)

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U
SING
T
HE
S
OIL
C
OMPACTION
S
UPERVISOR
Power On/Off
• To turn the Soil Compaction Supervisor on, press and
release the “Power” button.
• To turn the SCS2 off, press and hold the “Power” button
for about four seconds. Release the button when the
READY light turns off.
The SCS2 performs a short self-test immediately following
power up. These tests include: data transfer to the key (if
inserted), memory level check, and sensor check. If any of
the tests fail, an error will be displayed.
Note: An error is signified by the flashing STOP light.
See the “Errors Lights” section (page 8) for
information about errors.
If all tests pass, the READY light will turn on.
Inserting and Removing Key
• To insert the key, push it into the middle slot on the top of
the SCS2 and turn in clockwise 90°.
• To remove the key, turn it counter-clockwise 90° and pull
it out of the SCS2.
Attaching/Removing Sensor
• To attach the sensor insert the plug end of the cable into
the rectangular receptacle on the top of the SCS2. The
plug can only be inserted one way and will “click” when it
is inserted all the way.
• To remove the sensor depress the tang on the plug and
gently pull away from the SCS2.
Monitoring Compaction
1. Place sensor on a firm flat surface at the bottom of
the excavation. Cover the sensor with a small pile of
soil to keep it in place and protect it from the initial
backfill.
Note: The words “THIS SIDE UP” molded into the
sensor must face the top of the excavation.
2. Route the cable up the side wall of the excavation.
3. Backfill the excavation to a depth of 6-12 inches.
Note: The maximum working depth for the sensors is
approximately four feet depending on soil type.
Multiple sensors may need to be used on
excavations over four feet deep.
4. Position the sensor cable so it will not get damaged
during compaction.
5. Plug the sensor into the top of the SCS2.
6. Start running the compactor toward the sensor.
Note: For keyhole applications, place sensor in the
center of the hole, and run tamper in a circular
pattern.
7. Turn on the SCS2 3-4 feet before the compactor
reaches the sensor. See “Power On/Off.”
8. Continue running the compactor past the sensor and
compact in a normal pattern. The PROCESSING
light will begin to flash (after about 5 seconds). The
SCS2 is now done calibrating itself. The
PROCESSING light will now flash slowly (once per
second) when the SCS2 is calibrated for a percussion
machine or quickly (3-4 per second) for a vibratory
machine.
Note: If the SCS2 misidentifies the machine, Turn the
unit off, and restart.
9. Toggle to the correct hole/lift condition by pressing
the POWER button. See “Toggling New Hole/New
Lift” section for more information.
10. Continue to compact the entire lift. The SCS2 will
monitor the compaction as consecutive passes are
made over the lift. The PROCESSING light will
continue to flash as long as the SCS2 is receiving
data from the sensor. The COMPACTION
INDICATOR lights will light, indicating the
approximate stage of compaction as additional
passes are made over the lift.
11. When the STOP light comes on, finish the current
pass. Again, if the current pass over the lift is
incomplete, finish the pass and then stop
compacting.
Note: At this point, the “MEMORY” light will quickly
flash indicating the data has been stored to the data
key (if inserted) or to the SCS2’s internal memory.
12. Press and hold the “POWER” button to turn the SCS2
off. See “Power On/Off” section for more information.
Note: The SCS2 will automatically turn off after 30
seconds after the STOP light comes on.
Toggling New Hole/New Lift
To toggle between a “NEW HOLE” and a “NEW LIFT” press
the “POWER” button any time when “READY“ light is on.
The purpose of this function is explained in the “Data
Management”