Envipco FLEX Dual, Service Manual

Page: 36 / 114

Sensor/Load Cell/Camera/Laser
3- 6
3.3.3. Materials Sensors
By the time a container reaches the end of the conveyor, it passes the retro-reflector materials
sensors. As shown in Figure 3-4 on page 3-6, the emitter is lined up on the left side of the Scanner
Display, and the reflector are across from the emitter on the right side of the Scanner Display. The
function of the material sensor is to determine the position of container as it enters the conveyor.
The
RVM
software uses this information to optimize container acceptance for speed and accuracy.
3.3.4. PET Sensor
The
PET
sensor emitter is at the left side of the Scanner Display. The receiver is across from the
emitter on the right. The
PET
sensor works by emitting a beam of light through the container and
receiving the distorted beam on the other side. If the container is
PET
,
the receiver recognizes its
light pattern. The
RVM
uses this information for sorting and to determine acceptance or rejection.
3.3.5. Load Cell Flex
The
Load Cell
is mounted on the Intake Chute on the
Flex
. When the container reaches
the end of the conveyor, it is weighed to assure the container is within a specified weight
range. The
RVM
uses this information for calculating mass and to determine acceptance or rejection.
3.3.6. Load Cell Flex HDS
The
LOAD CELL
is mounted on the Load Cell Assembly on the
FLEX HDS
. When the
container reaches the end of the front conveyor
,
it is weighed to assure the container is
within a specified fill. The
RVM
uses this information for calculating mass and to determine
acceptance or rejection.
3.3.7. Camera/Laser
The
Camera/Laser Assembly
is mounted behind the
RVM
. As the container is being
weighed at the end of the conveyor it is also being scanned by the laser and a picture is
taken to assure it falls within the container dimensions. The
RVM
uses this information of
container dimension to determine acceptance, rejection and to prevent fraud.
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