Rice Lake TradeRoute HL Series - Low Profile Installation and Setup for Models from 2011 and Older 128406 - Manual (Page 33)

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5. Repeat step 4 for the other cells with the same procedure (remembering to press
the zero key to obtain a good center of zero). All the readings should be within
approximately one percent (1%) of each other. If the readings are significantly
farther apart, you may not be able to balance your system. Contact Rice Lake
Weighing Systems for technical assistance.
6. Pick the lowest reading and adjust the other cells down to this value with the
trimmers inside the control box (see Figure 19). To adjust a cell use the following
procedure:
a) With no test weights on the scale, press the zero key to obtain a good center of
zero
b) Load the balancing weight over the cell to be adjusted.
c) If you have to adjust the cell by one or two graduations, simply turn the trimmer
clockwise to reduce the displayed reading to the desired reading.
d) If you have to adjust the cell by more than one or two graduations, the system
may undergo a zero shift during the adjustment. Adjust the cell (by turning the
trimmer clockwise) to one graduation LOWER than the desired value. Remove
the weights and check the zero. Re-zero the scale and repeat the process until
the desired reading is obtained.
7. Test the final balance by loading each cell again and recording the M2000 readings.
The cells must read within one graduation of each other for an acceptable final
balance. However, it is more desirable that there be no difference in the readings
(zero balance error).
8. The system can now be calibrated.