Chapter 9: Routine Care and Maintenance
General
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9
Routine Care and Maintenance
General
Once the scale has been installed, it should be inspected and calibrated periodically by
an authorized METTLER TOLEDO representative. If the scale is used for legal-for-trade
purposes, consult the local weights and measures authorities for minimum inspection
requirements. Contact your local authorized METTLER TOLEDO service representative for
information about periodic inspection and calibration services.
Site Inspection
Make sure that the scale site remains in good condition. Check for alterations in the
surrounding floor, excessive vibrations, and possible overloading conditions.
Platform Inspection
During periodic inspections of the scale, check the following:
1.
Are there any unusual wear points, paths, or marks on the weighing platform?
2.
Is the scale frame bent or damaged?
3.
Is the junction box lid properly sealed and all cable connectors tight against the
enclosure?
4.
Is there any moisture or foreign material around or inside the junction box
assembly?
5.
Is the instrument cable damaged or binding the scale?
6.
Is there any debris or material build-up under or around the platform that could
prevent the platform from moving freely?
7.
For pit installations, is the floor drain clear and providing adequate drainage?
8.
Visually inspect the load cells, rocker pins, and fixed bumpers for signs of unusual
wear.
9.
Check repeatability and shift of the scale.
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General