(BarCodeEntry.exe) Only for use with Touch Screen Scan N Go ® . Enter the Material Code in the Mat Code field, use the lookup or scan the EHS Material Code. Then scan the barcode you wish to assign to the Material Code. The barcode will display beneath the Barcode column. May assign more then one barcode to a Material Code. If an incorrect barcode is listed, select that barcode and use the Delete key on your keyboard to remove it.