Mitsubishi Electronics A0567659 User Manual

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Gravimetric Batch Blenders w/Mitsubishi Control    Chapter 3: Installation 
35 
Load Cell Adjustment 
The mechanical setup of the Slide Gate/Auger 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”). A feeler 
thickness gauge, with the weigh hopper empty, should be used to set this. 
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 HANG FREELY AND BE FREE 
FROM FRICTION, WITH NO MECHANICAL OBSTRUCTIONS OTHER 
THAN THE LOAD CELL ITSELF. 
Figure 20:  Load Cell Mechanical Stop Adjustment 
LOAD CELL
.040" GAP
STOP ADJUSTMENT
BOLT