G4 Multi Channel Weighing Instrument. PM/DT/HE Technical Manual

Technical ManualIf the weight indicator must be replaced, a table calibration of the replacement unitcan be performed, with recorded values from an earlier calibration.To get the best accuracy, a deadweight calibration with known weights to at least2/3 of the measuring capacity, should be performed.All calibration parameters are found in the menus under ‘Scale X’ and‘Scale X Calibration’. The parameters are described in section 3 Set-up.Note that calibration must be done separately for each scale in the instrument.Actual gross weight and transducer signal is displayed when in menu ‘Scale X’ or‘Scale X Calibration’.Common parametersFor all calibration types, measurement unit and resolution for the weight value, andthe capacity for the scale must be specified. These parameters, among others, arefound in menu ‘Scale X’, see chapter 3. This section deals only with the calibrationparameters.Measurement unitThis parameter defines the engineering unit used for the weight value.The same engineering unit will also be used for example in the parameter values‘Resolution’, ‘Capacity’, ‘Level’, and ‘Setpoint’.ResolutionThis parameter defines decimal point position and resolution in weight display.The decimal point position selected here will be used in setting up, in the displayedweight value and in the weight value sent to a printer or computer.Resolution is understood to mean the smallest weight change presented.CapacityThis parameter defines the nominal range of the scale. This is the capacity of the scaleand should be set to the maximum weight with which the scale is to be loaded. Even ifthe scale (transducers) have larger capacity, this value should nevertheless be set sothat the weighing vessel does not become over full if the scale is loaded up to thisvalue. This parameter is used to calculate certain default values in the set-up and inchecking the maximum zero value (with ZERO key and zero-tracking).4-2