Digi-Star StockWeigh 550 EID - Manual (Page 24)

StockWeigh 550 EID and StockWeigh Link
20
Calibrating the Scale for Maximum Accuracy
Before continuing, first write down the current SETUP and CAL numbers of your EZ indicator.
These numbers are displayed during the Self Test. To run the self-test with the indicator already
ON, hold the [NET/GROSS] key and press the [ON/RECORD] key to start the Self Test. Press the
[ON/RECORD] key to "pause" the Self-Test while numbers are displayed. Press the [ON/RECORD]
key again to "resume"
SETUP # _______________ CAL # ________________
To accurately calibrate the scale, you will need a large amount of weight that has a known value.
For best results you should have at least as much weight as the largest load you plan to weigh.
Determining the New Setup and Calibration Numbers
1. Zero-Balance the scale so the display reads zero.
2. Put the KNOWN WEIGHT on the scale platform and write down the WEIGHT DISPLAY.
Perform the following equation to find the ACCURATE CAL #.
KNOWN WEIGHT
X EXISTING CAL # = ACCURATE CAL #
WEIGHT DISPLAY
Example:
The KNOWN WEIGHT is 1000lbs, but the WEIGHT DISPLAY is 950lbs. The EXISTING CAL # is
776.
1000
X 776 = 817
950
817 is the ACCURATE CAL #. The setup number does not change.