What is an S-beam load cell?
S-beam load cells, also known as S-type load cells, are force sensors that measure tension and compression. S Type Load Cells are named for their S-shaped body. Each Shear Beam Load Cell has a threaded hole at each end, making it a very flexible solution.
How do S type load cells work?
S-beam or S-Type load cells were designed for several weighing applications. These load cells work by placing a weight or generating a force on the load cell’s metal spring element. The weight on the load cell causes elastic deformation.
How do you know if a load cell is bad?
Check if the load cell cable has any obvious signs of damage. Any cuts, crimps, excessive aberration or exposed wires is a sign of damage. Check load cell element for any dents, deformation, cracks, rippling of metal, corrosion, and significant wear in the area of loading.
How long does a load cell last?
A quality load cell should last a long time. I’ve seen load cells last over 50 years. For long-term accuracy and quality, establish a preventative maintenance schedule and recalibrate the load cells based on the manufacturer’s suggested timeframe.
How do you calibrate an S type load cell?
Usually, there will be an option called Span Calibration. Choose this option to calibrate and use a test load on the load cell. Wait for the load cell to adjust and once it does, press Enter to finish the calibration process.
What is a load cell used for?
A load cell is a type of transducer which is used to convert mechanical force into a measurable electrical output, anything which needs to be weighed probably uses a load cell to do so. Load cells come in many different shapes and sizes so that they can be added to different machinery and weighing equipment.
Do load cells wear out?
Unfortunately, all too frequently, load cells fail. They undergo events that may reduce their functionality because they are easily the most vulnerable part of a weighing or scale system. Figuring out what went wrong is just as important as knowing or learning how to fix it.
Can load cells be repaired?
The reason most load cells are not repaired is because new load cell blanks are milled and verified as usable for operation prior to installation of the electronics. A failed load cell would need to be stripped to a blank load cell condition, verified, and then have new electronics installed.
How are load cells wired?
Load cells should be electrically connected in such a way that the signal (output) lines, excitation (power supply) and sense (when present) lines are in parallel. Usually the connection is not made at the indicator, but in a separate housing, a so called junction box, located adjacent to the weighing system.