KERN FIS Operating Instruction

KERN FIS Operating Instruction Manual pdf 30 page image

FIS-BA-e-0512308 Tolerance check weighing8.1 GeneralIn many weighing applications, it is not the absolute weight of an item that is ofinterest, but the deviation of this weight from a nominal value. Theseapplications, for example, are weight control of packages of equal weight or theprocess control of parts during a manufacturing process.The FIS balance offers a variety of functions so as to ensure that these tests canbe carried out efficiently.The results of this kind of tolerance check are displayed with the help of threedifferent display possibilities:• Pilot lamps (yellow-green-red)The quickest information as to whether or not the item to be weighed lies withinthe tolerance limits is supplied by the coloured pilot lamps located in the uppersection of the display housing. These pilot lamps are only in operation while thetolerance check is active, otherwise they are not visible.The pilot lamps provide the following information:- item to be weighed within tolerance range - green pilot lamp illuminated- item to be weighed below lower tolerance limit - red pilot lamp illuminated- item to be weighed above upper tolerance limit - yellow pilot lamp illuminated• Bar graph (display bar)Further information is supplied by the bar graph in the upper section of the LCdisplay. This bar graph gives an analogue indication (by the length of thepresented bar) of where the weight of the item to be weighed lies within thetolerance range. For this purpose, the tolerance range between the nominalvalue and the upper or lower limiting value is always standardized in such a waythat it just corresponds to the length of the bar of the bar graph.• Weight value (numerical display)The exact weight value is supplied by the numerical display which is also on-line during this operating mode. The following displays may be selected:- display of the absolute weight value,- display of the difference between the current weight value and the nominalvalue (see chapter 8.3 operating modes, settings).This type of display can be selected in “equipment settings“ (symbol display 9).When delivered the standard equipment is set to absolute values display.