User:Jerrycraft/Weighing Indicator

Weighing Indicator is a digital electronic weighing scale. It is more intelligent than conventional weighing scales because it can interact with different devices such as a load cell, printer or computer via cables.

Interact with Load Cell
Load cell will produce a small electric current when weight is applied. The electric current is sent to Weighing Indicator via a normal cable. The Weighing Indicator will amplify the electric current and translate it to digital weight. Example: 15.7kg

Interact with printer
When attach to a printer via a printer cable, it can print the weight on paper. Usually weighing 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 weighing indicator for user to press to print.

Interact with computer
A computer can be connected to it via a serial cable to RS-232 port on the computer. Information like weight, unit weight, status (stable, unstable, error) is send 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 database. By storing information in database, many other process can be automated by software application like invoicing, quality control, batch control, warehousing, distribution and more.