Presentation on theme: "Orientation of Load Cells"— Presentation transcript:
1Orientation of Load Cells 3 Point System4 Point System
2Types of Load PointsThere are three models of load cells that work in concert to help provide a bind free weighing system.FIXED: Provides a pivot point that prevents the scalefrom moving left or right and allowing a 360 degreeradius.BUMPER: Works with the FIXED mount to limit the360 degree rotation, and allow expansion.Orientation is very important.SLIDER: Completes the trio and is used to support the remaining vessel leg(s). The SLIDER allows expansion in any direction and limited by the other mount types.NOTE: There is additional installation information in the load point manuals
3The Fixed Mounting Assembly FIXED: Provides a pivot point that prevents the scale from moving left or right and allowing a 360 degree radius.Limits right, left and forward, back scale movementsProvides a certain amount of vessel checkingA bolt in the front of the load point mount provides lift off protection.Position load points to protect the cabling from traffic, mechanical pinch points and any possible damage.
4The Bumper Mounting Assembly Steel Blocks limit themovement Left and Right.BumperDesigned to allow movement forward and aft to compensate for vessel expansion and contraction.BUMPER: Works with the FIXED mount to limit the 360 degree rotation, and allow expansion.Correct orientation for this load point is very important.The cable end must point directly at or directly away from the FIXED load point.This acts as a limited check system to vessel movement.An incorrect mount alignment could allow the vesselto slip off the load point assemblies.
5The Slider Mounting Assembly SLIDER: Completes the trio and is used to support the remaining vessel legs. The SLIDER allows expansion in any direction and is only limited by the FIXED and BUMPER mounts and piping.The Slider Load point can be orientated in any direction.Position load points to protect the cabling from traffic, mechanical pinch points and any possible damage.
63 Point System One Fixed Point Load Point One Bumper Load Point One Slider Load Point
74 Point System One Fixed Point Load Point One Bumper Load Point Two Slider Load Points
8RULES OF ORIENTATION Fixed load cell Bumper load cell Slider load cell No rules of orientationBumper load cellLengthwise axis must be within 45o towards fixed load cellSlider load cell
9ACCEPTABLE ORIENTATION BUMPER load point must follow the rules of association to the Fixed load point.FIXED load point can be in any orientationSLIDER load point can be in any orientation
10ACCEPTABLE ORIENTATION Equally spaced at 120 degree around the vessel. The same concerns andorientation problems and solutions are equally appropriate for a roundvessel with four load points. The difference is the 4 point vessel will beequally spaced 90 degrees around the vessel.BUMPERFIXEDSLIDER
11ACCEPTABLE ORIENTATION Equally spaced at 120 degree around the vessel. The orientation makes two locationscrowded, pinch point, or traffic. You can move the bumper mount to an open area and re-orientate the fixed and slider load point to avoid the problem.FIXEDBUMPERSLIDER
12INCORRECT ORIENTATION BUMPERFIXED>45oSLIDERRotation can allow the vessel to twist off the load points.
13ACCEPTABLE ORIENTATION Equally spaced at 90 degrees around the vessel. the same concerns and orientation problems and solutions are equally appropriate for a round or square vessels with four or three load points. The difference is the 4 point vessel will be equally spaced 90 degrees around the vessel.SLIDERFIXEDBUMPERSLIDER
14ACCEPTABLE ORIENTATION Equally spaced at 90 degree around the vessel. The orientation makes locations crowded by pinch point, or traffic. You can move the bumper mount to an open area and re-orientate the fixed and slider load points to avoid the problem.SLIDERFIXEDBUMPERSLIDER
15ACCEPTABLE ORIENTATION Positioned on the longest sideFIXEDBUMPERSLIDERSLIDERThe same concerns and orientation problems and solutions are equally appropriate for a round vessel with four load points. The difference is the 4 point vessel will be equally spaced 90 degrees around the vessel.
16CORRECT ORIENTATION FIXED BUMPER FIXED BUMPER For conveyor systems you can use this combination to help stabilize the beltand flow alignment. You have minimized side motion and allowed expansionwith the length of the scale.
17INCORRECT ORIENTATION FIXEDSLIDER>45oSLIDERBUMPERThis would allow to much horizontal movement and could allow the load point to fall off the mount.
18Acceptable Orientations FBBoth orientations will work.Both of these orientation will work and are recommended methods. The top orientation will not work if this is a long rectangular scale with too long of angles. Install the Fixed and Bumper mounts together on the longest side. The bottom example is the preferred.SFB
19This orientation will not work. BSRotation will allow the vessel to fall off the mount.FS
20Any Questions?There is additional installation information in the load point manuals. We tried to show several scales with typical load point installations, but we cannot cover all combinations.Please contact Hardy Instruments Technical Support for any additional question.ext 1757