Many of us spend hours finding a fault in the load cell signal conditioner, but only a few succeed in this practice. Various fault-finding methods can perplex your mind. To make things easier, we are here with some handy tricks that would find a glitch in your load cell signal conditioner.
So set your toolkit ready and get started!
1. Check for Wiring Connection & Color Codes
The first thing you should check when the load cell becomes slower is the wiring. According to some survey, the 90% load cell fault has been discovered because of a problem in the wiring. Cabling is somewhere in between amplifier and excitation points. Before you opt for any other fault finding method, it's better to take a look at the wiring first. The color code of the cell may vary from producer to producer; therefore, it's better not to guess it wrong. Any mistake can have circumstances that can be a costly affair to tackle. Moreover, you can check the manual or specifications of the load cell before coming to a particular decision.
2. Check for Overloading on Load Cell
An overloaded load cell can lead to glitches as well. A cell is overloaded if it's leaned. Further, it deforms the shape of the cell and it's not possible for a cell to return to its zero position. This permanent deformation gives non-zero readings from which you can guess its cause. It's not easy to maintain a load cell signal conditioner; so, one has to be careful with the alarming signs. So whenever you found wrong readings, make sure that you check the cell for overloading and replace it immediately in case of a fault.
3. Excitation +/- and Signal +/- Resistance
There must be a resistance between +/-ve terminals of both excitation and signal. To ensure that the resistance is moderate or normal, take a reading on the multi-meter. In case you find any vibration, don't panic, it's the normal behavior of the terminals because of the electrons running inside it. But before you follow this method, make sure that the load cell is disconnected from the signal conditioner to avoid any hazard. So take the meter in your hand and check the resistance today!
4. Load Cell Movement
Is your load cell free to move? If not, chances of high mechanical restriction are there. Poor cabling can be the reason why a load cell is twisted and showing wrong readings. Therefore, the cable routing must be clean and debris-free.
Winding Up

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