Tare Feature on Scales: What Is It?

When you are weighing items within a container, the total measurement will factor in the tare weight. You may ask what the tare feature is. This refers to the actual weight of the item, with the container subtracted from the total. The tare feature on the scale handles deducting the container’s weight from the whole automatically, not requiring the operators to do the calculations.

Tare weight is also called unladen weight. The total weight of an item weighed in a container on a scale is called gross or laden. Some items, such as grains and liquids, cannot be weighed loosely on a scale. Operators want to save time during regular activities, especially when handling bulk orders. This also saves costs in the long run, with more efficient weighing of unusual objects.

What Is A Tare Feature?

A tare feature is sometimes also called a net-zero feature. When pressed, it resets the displayed weight to zero, despite the container being on the scale. Then when you place the item into the container, the scale then weighs it and doesn’t count the extra load. The tare feature removes the container’s weight to increase accuracy. Some scales allow you to preprogram this for repetitive weighing, which saves on time.

Mind that the tare function is not the same as the one for total or gross zero, which applies when there is no weight on the scale at all. (Always mind that your scale should measure zero when there are no items being weighed, for accuracy purposes.) Tare focuses on net zero, what happens after you remove the weight of the container.

Different types of scales can use a Tare feature. These include platform weighing, kitchen, and scientific weighing scales that require frequent resets for containers.

Trucks for shipping are one such example of items that benefit from tare features. Usually these vehicles have an established curb weight, but companies have to pay shipping costs for transport with tolls. The total weight of the truck and the goods is called a gross towing weight. Any additional equipment attached to the truck gets added as a part of gross combination. Thus, tare features can calculate the exact amount of the items being shipped, without having to remove them from the truck.

Wheelchairs are another example. Many wheelchairs are heavy, and hospitals or nursing homes use them for weighing patients that cannot sit or stand on platform scales. Having a tare function allows nurses and orderlies to get accurate patient weight, without skewed results from the mobility devices. The possibilities can only increase with other devices that are heavy.

The same goes for underwater weighing. With humans, this is also called hydrostatic weighing to evaluate body fat. Objects weigh differently underwater, as the Greek legend Archimedes found when testing a gold crown to see if it had blends of silver. He found that the weight of an object underwater is directly proportional to the volume of water displaced by said object’s volume. This can include a crown, items, or a person.

When using these scales, a person has a mechanical chair underwater, or items have an appropriate container. Underwater scales subtract the chair or container’s weight and consider that the tare, while the underwater weight is the remaining amount.

When using the tare feature, make sure that the weight or mass of the container and the object are within the scale’s carrying capacity. Otherwise you run the risk of shock overload, or when a force applied damages the strain gauge due to superceding its limits. Shock loads, which tend to be dropped rather than applied slowly, are also a concern.

Many mechanical scales lack a tare feature, compared to digital scales. Instead, there is a tare bar that the operator needs to adjust. The operator needs to remember to weigh for tare, adjust the bar, and then reset to zero when using new devices.

With a digital scale, the tare feature is much simpler. You just have to press a button, and the scale will deduct the container weight automatically. That is why we prefer digital scales, which are more convenient for our customers.

Go Beyond Pressing The Tare Button With Arlyn Scales

Arlyn Scales wants to deliver more than resetting the displayed weight for your regular operations; we design scales to benefit everyone. Our engineers work on developing weighing equipment that optimizes precision and accuracy. Specially designed strain gauges minimize shock overload, allowing for a higher carrying capacity. No matter the industry, we can provide the right scales and loading scales for manufacturing operations.

Reach out to us today to get started on custom options for weighing systems. One of our representatives can provide recommendations beyond standard kitchen scales. Take advantage of gross zero functions for accuracy. In addition to the tare feature, find other benefits that our scales can provide, with precision, accuracy, and long-lasting strain gauges.