Metrologic Instruments StratosS MS2220 - Manual (Page 56)

50
S CALE O PERATION
C ALIBRATION V ERIFICATION
Kilograms (kg)
The following tests verify if the scale's Calibration is accurate. For US Pounds see instructions starting on page 49.
The following tests are based on a 3-digit accuracy setting for kilograms.
ƒ Increasing Load Test
ƒ Shift Test
ƒ Decreasing Load Test
ƒ Return to Zero Test
Increasing Load test
1. Ensure there is no load on the scale platter and verify the remote display reads 0.000 kg.
2. Place a 2.500 kg weight on the center of the scale platter and verify the display reads 2.500 kg.
3. Place an additional 2.500 kg weight on the center of the scale platter and verify the remote display reads between
4.995 kg and 5.005 kg.
4. Place an additional 5.000 kg weight on the center of the scale platter and verify the remote display reads between
9.995 kg. and 10.005 kg.
5. Place an additional 5.000 kg weight on the center of the scale platter and verify the remote display reads between
14.995 kg. and 15.005 kg.
6. Remove all the weight from the scale platter and verify the display reads 0.000 kg.
Shift Test
1. Ensure there is no load on the scale platter and verify the remote display reads 0.000 kg.
2. Place a 7.500 kg weight on the scale platter in the center of zone A (see diagram) and
verify the remote display reads between 7.495 kg. and 7.505 kg.
3. Remove the 7.500 kg weight and verify the display reads 0.000 lbs.
4. Repeat steps 2 and 3 for each of the remaining zones (B, C, and D).
5. Verify that the remote display reads 0.000 kg when all weight has been removed.
Decreasing Load Test
1. Ensure there is no load on the scale platter and verify the remote display reads 0.000 kg.
2. Place a 15.000 kg load on the center of the scale platter. Verify the remote display reads between
14.995 kg. and 15.005 kg.
3. Remove 7.500 kg from the platter and center remaining weight. Verify that the remote display reads between
7.495 kg. and 7.505 kg.
4. Remove another 5.000 kg from the platter, center remaining weight and verify the scale reads 2.500 kg.
5. Remove all the weight from the platter and verify the scale has returned to 0.000 kg.
Return to Zero Test
1. Ensure there is no load on the scale platter and verify the remote display reads 0.000 kg.
Figure 55. Shift Test Zones