What Does Under Balance Weighing Mean?

It means flexibility and the capacity to complete more measurement tasks than just weight alone. Units with a mechanism for under-balance weighing can be paired with a weight hook to help extend their versatility.

under balance hook for weighing

Primary Function

Weighing Large Items

In its simplest form, an under-balance weighing mechanism allows you to weigh large items that might not fit on the standard scale platform. This function requires attaching a hook to the bottom of the scale to suspend the item being weighed from the hook or to be placed on a holding tray attached to the hook.

Secondary Functions

In addition to weighing large or unwieldy items, an under-balance weighing mechanism facilitates density measurement and specific gravity testing.

Density Measurement

When using this function, a density measurement system attaches to the weight hook. Balances must be set to the density application function within the available programming. To calculate density, an object must first be weighed dry, and then again in liquid, using the under-balance mechanism. The balance application function will calculate density automatically.

Specific Gravity Testing

Specific gravity measurement is also known as relative density. This calculation involves measuring the density of a sample or an item and dividing it by the known density of a relative substance, for example, water.

Using a balance to perform this kind of calculation usually involves attaching a container of water to the under-balance weighing mechanism with the hook and measuring the displacement that occurs when a sample or item is placed in the water.

Physical examples of this measurement include the relative density of gems or minerals, though there are other ways of calculating this value for chemicals, soils, liquids, and gases.

Please Note

If you frequently use the under-balance mechanism on your measurement device, unit placement should be carefully considered to account for ease of access to the under-balance mechanism and measuring preparation and accuracy.

TLD's Under Balance Weighing

The Lab Depot carries the following manufacturers who offer products with under-balance weighing mechanisms. All provide high-quality, reputable products to support your measurement standards and requirements. List of manufacturers with direct links to products.

Sources:

Adam Equipment.www.adamequipment.com.

Summit Measurement.www.summitmeasurement.net.

Scales Plus.www.scalesplus.com.

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