Digital Weight Indicator also commonly called Weight Indicator is a system of indication or recording of the selector type or one that advances intermittently in which all values are presented digitally, or in numbers. In a digital indicating or recording element, or in digital representation, there are no graduations. The

National Conference on Weights and Measures The National Conference on Weights and Measures (NCWM) is a not-for-profit corporation dedicated to developing the United States technical standards for weights and measures in commerce. The organization's official mission is "Ensuring Equity and ...

(NWCM) lists these device types as “Indicating Elements” in its certificate databases. The National Conference on Weights and Measures have categorized Digital Weight Indicator as a Verified Conformity Assessment Program (VCAP). A program has been proposed by the

to ensure compliance of certain device types with environmental requirements. Over the years, it gets more intelligent and complicated than conventional

weighing scales A scale or balance is a device used to measure weight or mass. These are also known as mass scales, weight scales, mass balances, and weight balances. The traditional scale consists of two plates or bowls suspended at equal distances from a ...

. It can interact with different devices such as a

load cell A load cell converts a force such as tension, compression, pressure, or torque into an electrical signal that can be measured and standardized. It is a force transducer. As the force applied to the load cell increases, the electrical signal change ...

, printer, and computer via cables.

Interactions

With load cell

Load cell A load cell converts a force such as tension, compression, pressure, or torque into an electrical signal that can be measured and standardized. It is a force transducer. As the force applied to the load cell increases, the electrical signal change ...

will produce a small electric current when

weight In science and engineering, the weight of an object is the force acting on the object due to gravity. Some standard textbooks define weight as a vector quantity, the gravitational force acting on the object. Others define weight as a scalar qua ...

is applied. The electric current is sent to Digital Weight Indicator via a normal cable. The Digital Weight Indicator will amplify the electric current and translate it to digital weight. Example: 15.7 kg

With printer

When attached to a

printer Printer may refer to: Technology * Printer (publishing), a person or a company * Printer (computing), a hardware device * Optical printer for motion picture films People * Nariman Printer (fl. c. 1940), Indian journalist and activist * James ...

via a printer cable, it can print the weight on paper. Usually Weight Indicator come with a basic printing feature. It can be program in the firmware to print in few basic format. Usually there is a print button on the Digital Weight Indicator for user to press to print.

With computer

A computer can be connected to it via a

serial cable A serial cable is a cable used to transfer information between two devices using a serial communication protocol. The form of connectors depends on the particular serial port used. A cable wired for connecting two DTEs directly is known as a nu ...

RS-232 In telecommunications, RS-232 or Recommended Standard 232 is a standard originally introduced in 1960 for serial communication transmission of data. It formally defines signals connecting between a ''DTE'' (''data terminal equipment'') such ...

port on the computer. Information like weight, unit weight, status (stable, unstable, error) is sent to the computer in a particular format. The format is not standard and differs with each brand. A computer interpret the information received and display them on screen and print it on printer. With user interaction, user can enters other information in relation to the weight received and save them to a database. By storing information in a database, many other process can be automated by software application like

invoicing An invoice, bill or tab is a commercial document issued by a seller to a buyer relating to a sale transaction and indicating the products, quantities, and agreed-upon prices for products or services the seller had provided the buyer. Payment ...

, quality control, batch control, warehousing, distribution, and more.

References

{{Reflist Weighing instruments