NCR RealScan 7875-7000 - Decreasing Load Test

NCR RealScan 7875-7000/8000 Installation Guide
AIP-00342 Release B 06/03
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Over-Capacity Test
This test checks for the proper indication from the scale when too much weight is placed on the
top plate.
Note: This test must immediately follow the increasing load test; do not remove any of the
weights prior to running this test.
Place additional weight on the top plate as shown in the following chart. Use the weight that
corresponds to the RealScan 7875 weight feature. The display shows a series of dashes to
indicate an over-capacity condition.
Step Weight Feature Add Weight Remove Weight Display Result
1 9.995 kg 0.04 kg --.---
13.995 kg 0.04 kg --.---
30.0 lb. 0.08 lb. --.---
2
9.995 kg 0.04 kg 9.995 ± 0.005 kg
13.995 kg 0.04 kg 13.995 ± 0.005 kg
30.0 lb. 0.08 lb. 30.0 ± 0.01 lb.
Note: Remove only the "over capacity" weights before proceeding.
Decreasing Load Test
This test checks the scale’s accuracy when incrementally removing weight from the top plate.
Use weights that correspond to the RealScan 7875 weight feature.
Note: This test must immediately follow the over-capacity test; do not remove any of the
weights prior to running this test.
Step Weight Feature Add Weight Remove Weight Display Result
1 9.995 kg 2.495 kg 7.5 ± 0.005 kg
13.995 kg 3.995 kg 10.0 ± 0.005 kg
30.0 lb. 10.0 lb. 20.0 ± 0.01 lb.
2
9.995 kg 5.0 kg 2.5 ± 0.00 kg
13.995 kg 7.5 kg 2.5 ± 0.00 kg
30.0 lb. 15.0 lb. 5.0 ± 0.00 lb.
3
9.995 kg 0.1 kg 2.5 kg 0.1 ± 0.00 kg
13.995 kg 0.1 kg 2.5 kg 0.1 ± 0.00 kg
30.0 lb. 0.2 lb. 5.0 lb. 0.2 ± 0.00 lb.
4
9.995 kg 0.1 kg 0.0 ± 0.00 kg
13.995 kg 0.1 kg 0.0 ± 0.00 kg
30.0 lb. 0.2 lb. 0.0 ± 0.00 lb.