3-6 Set-up

This section will discuss the mechanical setup and control system setup of the continuous loss-in-weight blending system. After reading this section, you should be familiar with the mechanical setup and the electronic control setup of the blending system.

Load Cell Adjustment

The mechanical setup of the continuous loss-in-weight blending system involves the adjustment of the weigh hopper load cells (Please refer to the figure below). This figure illustrates the proper adjustment of the load cell mechanical stop bolt. The setting for the positive stop is necessary to prevent the load cell from being “over-ranged” by excessive loading on the weigh hopper. The setting for the load cell stop is forty thousandths of an inch maximum (.040”). This should be set by a feeler thickness gauge with the weigh hopper empty.

If a feeler gauge is not available, the weigh hopper should be filled with the material that is to be blended, and the stop adjusted so there is just a very small gap (a couple of sheets of notebook paper) between the load cell, and the blender base stop. This will allow the load cell to operate without mechanical restrictions and provide an overload safety. To adjust the stop, adjust the screw located on the bottom of the load cell. Adjust the screw up to increase the gap and down to decrease the gap.

Note: THE WEIGH HOPPER ASSEMBLY MUST BE FREE FROM FRICTION, WITH NO MECHANICAL OBSTRUCTIONS OTHER THAN THE LOAD CELL ITSELF.

Figure 10: Load Cell Mechanical Stop Adjustment

Continuous Loss-in-Weight Blenders

Chapter 3: Installation

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Sterling 060, 100, 600, 015, SLC 5/04 specifications Set-up, Load Cell Adjustment
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060, SLC 5/04, 015, 600, 100 specifications

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