4 Step Method to Find a Fault in Load Cell Signal Amplifier

Many of us spend too much time on discovering a fault in a load cell signal amplifier, but only a few gets succeed. There are countless fault-finding Techniques that can bewilder your mind. To make things easier, we have done all the research for you and have come up with some handy methods those would find any anomaly in your load cell signal amplifier quickly.

So get ready with your toolkit and follow the lead!  

1.     Wiring Connection & Color Codes

The first thing to check when the load cell is slower is the wiring. As per some survey, approximately 90% faults in a load cell have been encountered because of a glitch in the wiring. Right between the amplifier and excitation points, there’s a huge arrangement of cabling. Before you choose any other hitch finding process, it's better to investigate the wiring first. There will be a color code, which may vary from manufacturer to manufacturer; therefore, it's better not to assume it.      

2.     Overloaded Load Cell

An overloaded load cell can direct to issues. A leaned cell is considered to be overloaded. Moreover, it can distort cell’s shape, which can’t be revered to the zero position. This permanent distortion gives the non-zero readings from which you can guess the cause. Maintaining a load cell signal conditioner isn’t easy; so, one has to be cautious with these signs.       

3.     Excitation +/- and Signal +/- Resistance

It’s imperative to have a resistance between +/-ve terminals on both the excitation and signal terminals. Taking a reading will help you to find whether or not the resistance is moderate or normal at these points with the help of a multi-meter. If you find any vibration, don't worry, it's normal. On a safety note, ensure that the load cell is not connected to the signal conditioner.         

4.     Load Cell Movement

Is your load cell moving freely? If not, there could be a high mechanical restriction. A bad cable connection can cause the load cell to twist and showing wrong readings. So, clean the cable routing.     

So use this method to keep your load cell signal conditioner in check.