Revision 09/04
General Conditions for Installation and Assembly
Document No.: A5E00353789B
Page 12
DANGER
Contaminated, icy or incorrectly set overload protection will create blockages
which cause incorrect measurements or can cause injury or damage to the
machinery by overloading the scale.
CAUTION
Proper assembly and installation of load cells and mounting elements is to be
ensured by checking the assembly dimensions and freedom of movement for
example. Incorrect assembly can cause damage to load cells and mounting
elements.
Ensure that the cable is not damaged, disconnected or separated.
Wrap and hang the cable in a loop hanging down on vertical cable mounts to
divert any moisture away from connections.
1.8 Installation
Surfaces
The following conditions are to be met for mounting element installation surfaces:
•
The position and slope deviation of the installation surfaces to one-another
should correspond with the general tolerances for welded constructions,
EN ISO 13920.
•
The foundation must be absolutely solid and unable to sink. Level steel
plates should be cast in cement foundations upon which the mounting
elements are mounted.
•
The anchorage points must be perpendicular to the direction of
measurement and should preferably all be at the same level.
If there are more than three mounting points, then the suspension is normally
statically indeterminate. It is inevitable that the load will not be evenly distributed
over all load cells on a stiff foundation with stiff loading platforms. Two diagonally
positioned load cells support the main load. The other cells merely support the load
platform. There are two ways to consider this:
1. By over-dimensioning the load cells
The rated load of the load cells is calculated so that the overall weight can be
supported on two load cells using four mounting points for example.
This will also prevent load cell overloading if there is a possibility of the foundation
sinking.
