Rice Lake BCi Belt Scale - Installation & Operation Manual Version 2.00 - Manual (Page 58)

52 BCi Installation & Operation Manual
Maintenance Testing
A belt scale should be tested weekly using one of the simulated testing devices, like test chains or test weights.
They need to be conducted at periodic maintenance intervals between the material tests to provide a reasonable
assurance that the scale is performing correctly. Records of these tests should be kept for use by the applicable
regulatory agency. The following steps should be performed when doing maintenance testing.
1. A visual inspection should be made to insure the equipment is in good mechanical condition: scale area
clean, no obstructions, the idlers turn, the bearings are sound, etc.
2. Zero test the scale system. Adjust zero until within the tolerance of the applicable regulatory agency. An
idle belt should run 30 minutes or more depending on the temperature prior to the zero test.
3. Span test the scale system (span testing explained in the Auto Cal Mode section), using the selected
simulated test device. Adjust the span until it’s within the tolerance of the applicable regulatory agency.
Perform three to five repeatability tests. The scale should repeat to the given tolerance.
4. Remove the simulated testing device and check zero per step 2.
5. The system is now ready for normal operation.
If a convenient material test method is available, the simulated test need not be performed. The material test
is then performed on a weekly basis. Test results should be kept for the applicable regulatory agency.
Note