Kistler-Morse KM LD360s - Manual (Page 13)

An independent, isolated vessel with no connection to any other vessel or adjacent structure provides the most accurate
results for a weight measurement system. Examples of this type of application are floor scales and truck scales. Connec-
tions to other vessels or structures affect accuracy because the transducers interpret strain changes caused by the connect-
ing structures as being caused by changes in the material weight.
Some typical causes of error related to connecting structures and, where applicable, methods for reducing the errors
follow:
Factors That Affect Performance
• Catwalk
• Hidden load bearing members
• Vessel goes through roof
• Tripper conveyors or deck plating
• Rigid piping connection between vessel and
another adjacent structure
• Poor Foundation
• Flexible Structure
• Uneven Loading
Figure 2-1:
Examples of typical causes of error.
Flex coupling
No horizontal run
Flex
No horizontal run
Chapter 2: Preparing for the Load Disc Installation
2-3
Horizontal run length is ok for
cross-sectional area of pipe
Horizontal run too short for cross-
sectional area of pipe