Why Does the Number on the Scale Fluctuate So Much?

From a scale company perspective, when we hear the question, why does the number on the scale fluctuate so much?  There are several answers below that could be true.  

When we define the word fluctuate, the definition is: rise and fall irregularly in number or amount. Sometimes the word fluctuation can be used interchangeably with bouncing or changing.

weight fluctuation

From a healthcare scale or bathroom scale perspective:  It is normal to see your body weight vary daily. It could be various reasons such as food or water intake. Maybe a new diet. 

In the scenarios that we see more often as an Industrial Scale Company, when we’re asked why does the number on the scale fluctuate so much?  The answers below are usually true.

Often with industrial scales a customer places an object on the scale and it is a certain weight. There is usually little to no fluctuation.  If the scale does fluctuate more than a couple graduations, then it likely means that some component in the scale is not working correctly (main board, load cell, etc…) or it could mean that the scale needs to be re-calibrated.

With commercial scales or industrial scales, if you place an object or weight on the scale, there should be little to no fluctuation.  If the weight is bouncing around, then you likely have a problem of some type.  Sometimes it can be something as simple as wind or water.  If you’ve ever tried to weigh trucks on a 70 foot long truck scale on a windy day, you have likely seen truck weights fluctuating. Once the wind subsides, the weigh fluctuation should as well. As for water, if a junction box has water inside, that can cause fluctuations. Dry out the j-box and often the weight stabilizes.