WLC 20/A2, Precission BalancePrecision balances enable fast and accurate determination of mass in laboratory and industry. The devices are equipped with an internal battery which allows their operation in places where there is no access to the mains.The balance features a stainless steel weighing pan, and a backlit LCD guaranteeing clear weighing result presentation.Communication interfaces: 2xRS232, USB type A, USB type B. The interfaces enable cooperation with peripheral devices, e.g. printer, computer, USB flash drive, additional display. The WLC balances feature real-time clock and ALIBI memory.Control of sample's mass carried out with reference to specified MIN and MAX thresholds. The weight is considered to be correct if it is comprised within threshold values. A graphic visualisation of weighing result is displayed in a form of a bar graph.Percent Weighing function is used for comparision of measured products with mass standard. Mass of a mass standard may be a numeric value taken from a database or it may be determined through a measurement process. Each measured product is compared to mass standard, mass of which is presumed as a model 100% ideal mass. For products weighing less than the mass standard, obtained results are lower than 100%, for products weighing more, the obtained results are greatly exceeded.Function adding new mass value to already obtained one. This allows to determine mass content of the mixture, being a composition of number of different consistence components. Totalizing is limited by maximum capacity parameter.Function using mass measurement for determination of measured items quantity. Mass of a single item is required for this process. It may be either estimated through weighment or taken from a database. For items counting the following algorithm is used: all items mass / single item mass = quantity. Function operation is supperted by a mechanism of Automatic Correction of Accuracy. This allows to update single item mass in course of the process. To a certain extend Automatic Correction of Accuracy eliminates error which may be a result of different mass values of seemingly alike single elements. For industry solutions items counting may be simultaneously carried out with checkweighing and dosing thus industry solutions feature audio signalling base informing that specified number of items has been weighed. It is possible to apply weighing systems using few platfroms of different MAX capacities and different accuracies.Internal and rechargeable battery of SLA 6 V type (sealed lead acid) enables device operation without connecting the device to the mains (9h operation). The weighing instrument controls battery status and displays a respective pictogram on the screen.Function registering the greatest temporary indication occurring in course of the weighing process. It is most often used in medical scales in order to hold the measurement indication.Function allowing to perform the measurement in Newton unit, it may be used for processes aiming to determine force resulting in the sample damage.