7ML19985FF01 Milltronics MLC Belt Scale – INSTRUCTION MANUAL Page 3
Operation
The MLC belt scale works with an existing light-duty flat belt conveyor (handling light-
density materials) and the selected Siemens Milltronics integrator. As material moving
along the conveyor belt travels over the belt scale, it exerts a force proportional to the
material load through the suspended idler to the load cells.
The MLC reacts only to the vertical component of the applied force. The resulting
movement in each load cell is sensed by its strain gauges. When the strain gauges are
excited by voltage from the electronic integrator, they produce an electrical signal
proportional to weight, which is then applied to the integrator. The vertical movement of
the load cells is limited by the positive overload stop incorporated into the design of the
load cell.
Installation
The MLC belt scale is shipped from the factory as a single unit in a heavy-duty shipping
container. The container is packed to separate each item and to provide protection during
shipment. Each item should be inspected as it is removed from the container.
To limit the weight and dimensions of the idler on the scale, Siemens Milltronics provides
an idler built to definite specifications as part of the scale. If a substitute or a replacement
is required, please contact Siemens. Substituting or replacing this idler with a non-spec
idler could result in damage to the scale due to overloading or improper fit.
To avoid potential scale installation problems, please compare the site conditions with
the MLC installation drawings available on www.siemens.com/continuous-weighing
. If
you have any questions, please contact your Siemens representative.
Notes: Be sure the conveyor design meets the installation requirements for the
Siemens Milltronics MLC belt scale.
• Adjust conveyor stringers to be rigid, straight, parallel to, and square with
the belt line in the area of the scale installation.
• Adjust pulleys to ensure that the conveyor belt tracks straight and centrally
from the head to the tail pulley.
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