NCR RealScan 7872 Installation/Owner Guide
497-0415291 Release F
08/04
21 of 44
Verify the Calibration
The scale accuracy test meets government requirements of testing the accuracy of the
scale after performing a scale calibration. It contains a series of four tests that must be
run in the continuous sequence given.
Increasing Load Test
This test checks the scaleís accuracy when incrementally adding weight to the center of
the top plate. Use weights that correspond to the RealScan 7872 weight feature.
Step
Weight Feature
Add Weight
Remove Weight
Display Result
1
13.995 kg
0.1 kg
0.1 ± 0.00 kg
30.0 lb.
0.2 lb.
0.2 ± 0.00 lb.
2
13.995 kg
2.5 kg
0.1 kg
2.5 ± 0.00 kg
30.0 lb.
5.0 lb.
0.2 lb.
5.0 ± 0.00 lb.
3
13.995 kg
4.5 kg
7.0 ± 0.005 kg
30.0 lb.
5.0 lb.
10.0 ± 0.01 lb.
4
13.995 kg
3.0 kg
10.0 ± 0.005 kg
30.0 lb.
10.0 lb.
20.0 ± 0.01 lb.
5
13.995 kg
3.995 kg
13.995 ± 0.005 kg
30.0 lb.
10.0 lb.
30.0 ± 0.01 lb.
Note:
Do NOT remove any weight from the Top Plate.
