Intercomp CW250 - Weight Calibration; Applying Calibration Points; First and Second Load Calibration

CW250, Users
Rev M, April 2018
Page 26 of 31
Weight Calibration
The CW250 has the capability to apply and load up to 10 calibration points.
Depending on the calibration goal, one to ten load weights will need to be applied to
calibrate the scale. Multiple point calibration will improve scale accuracy by removing
undesirable characteristics of load cells. A typical weight calibration is a 3-Point
calibration. A 3-Point calibration will apply and enter three different and optimal loads
(not including the zero point). If three different weights are not available, a one or two
point calibration can be performed. To calibrate with one point (weight), turn off the
scale after completing step 13. To calibrate with two points, turn off the scale after
completing step 15.
10. The display will show "” for approximately 1 second and then advance to show
the message "". Press the PRINT/ ACCUMULATE button. The display will show
the current capacity setting with the right digit flashing. Use the LOCAL/TOTAL
button to the advance the number and the ZERO button the move the number
flashing to the left. Enter the capacity of the scale and press the
PRINT/ACCUMULATE button when the scale capacity is displayed.
11. The display will show "". Verify there is no weight is applied to the scale and
press the PRINT/ ACCUMULATE button.
12. The display shows "". Press the PRINT/ACCUMULATE button. The display
will show "" with the far right digit flashing. Use the LOCAL/TOTAL button to
advance the number and the ZERO button to move the flashing number to the left.
Enter the value of the first load and press the PRINT/ACCUMULATE button when
the value of the first load is displayed.
13. The display shows "". Apply the first load to the scale. When the first load is
applied to the scale, press PRINT/ACCUMULATE button.
14. The display shows "". Press the PRINT/ACCUMULATE button. The display
will show "" with the far right digit flashing. Use the LOCAL/TOTAL button to
advance the number and the ZERO button to move the flashing number to the left.
Enter the value of the second load and press the PRINT/ACCUMULATE button
when the value of the second load is displayed.
15. The display shows "". Apply the second load to the scale. When the second
load is applied to the scale press PRINT/ACCUMULATE button.
16. The display shows "". Press the PRINT/ACCUMULATE button. The display
will show "" with the far right digit flashing. Use the LOCAL/TOTAL button to
advance the number and the ZERO button to move the flashing number to the left.
Enter the value of the third load and press the PRINT/ACCUMULATE button when
the value of the third load is displayed.
17. The display shows "". Apply the third load to the scale. When the third load
is applied to the scale press PRINT/ACCUMULATE button.