Tracer AV Installation Manual - Rice Lake Weighing Systems

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6.5 Conversion Factors for SecondaryUnitsThe Tracer AV has the capability to mathematicallyconvert a weight into many different types of unitsand instantly display those results with a press of theUnits key.Secondary units can be specified on the FORMATmenu using the SECNDR parameter, or by using EDPcommands.NOTES:• Multipliers are preconfigured within theTracer AV. Manual entry is only necessarywhen NONE is selected under UNITS. Longtons and grain units listed in Table 6-4 cannotbe directly specified as primary or secondaryunits. For these or other unlisted units ofweight, specify NONE under UNITS.• Ensure that the secondary decimal pointposition is set appropriately for the scalecapacity in the secondary units. If theconverted value requires more digits than areavailable, the indicator will display anoverflow message (OVERFL).• For example, if the primary units are shorttons, secondary units are pounds, and thesecondary decimal point is set to 8888.88, theindicator will overflow if 5 tons or more areapplied to the scale. With 5 tons applied, and aconversion factor of 2000, the secondaryunit’s display needs five digits to the left ofthe decimal point to display the 10000 lbsecondary units value.Primary Unit x Multiplier Secondary Unitgrains 0.064799 grams0.002286 ounces0.000143 pounds0.000065 kilogramsounces 437.500 grains28.3495 grams0.06250 pounds0.02835 kilogramspounds 7000.00 grains453.592 grams16.0000 ounces0.453592 kilograms0.000500 short tons0.000446 long tons0.000453 metric tonsshort tons 2000.00 pounds907.185 kilograms0.892857 long tons0.907185 metric tonsgrams 15.4324 grains0.035274 ounces0.002205 pounds0.001000 kilogramskilograms 15432.4 grains35.2740 ounces1000.00 grams2.20462 pounds0.001102 short tons0.000984 long tons0.001000 metric tonsmetric tons 2204.62 pounds1000.00 kilograms1.10231 short tons0.984207 long tonslong tons 2240.00 pounds1016.05 kilograms1.12000 short tons1.01605 metric tonsNOTE: Multipliers in italics are preconfiguredTable 6-4. Conversion Factors36 Tracer AV Installation Manual
6.6 Digital FilteringThe Tracer AV uses averaged digital filtering to reduce the effect of vibration on weight readings. Adjustablethreshold and sensitivity functions allow quick settling by suspending filter averaging, allowing the weightreading to jump to the new value. Figure 6-3 shows the digital filter parameters on the CONFIG menu.DIGFL1DIGFL2DIGFL3DFSENSDFTHRH2228OUTNONE44416OUT2DD88832OUT5DD16161664OUT10DD323232128OUT20DD6464642OUT50DD1114OUT100DD200DD250DDFigure 6-3. Digital Filtering Parameters on the Configuration (CONFIG) MenuDIGFL1= n1 DIGFL2= n2 DIGFL3= n3n1A/D Readingsn21st StageFilter A veragesn32nd StageFilter A verages1st StageFilter A verage2nd StageFilter A verage3rd StageFilter A verageDisplayedValueFigure 6-4. Flow Diagram for Tracer AV Digital Filters6.6.1 DIGFLx ParametersThe first three digital filtering parameters, DIGFL1,DIGFL2, and DIGFL3, are configurable filter stagesthat control the effect of a single A/D reading on thedisplayed weight. The value assigned to eachparameter sets the number of readings received fromthe preceding filter stage before averaging (seeFigure 6-4).The overall filtering effect can be expressed by addingthe values assigned to the three filter stages:DIGFL1 + DIGFL2 + DIGFL3For example, if the filters are configured asDIGFL1=4, DIGFL2=8, DIGFL3=8, the overallfiltering effect is 20 (4 + 8 + 8). With thisconfiguration, each A/D reading has a 1-in-20 effecton the displayed weight value. Setting the filters to 1effectively disables digital filtering.6.6.2 DFSENS and DFTHRH ParametersThe three digital filters can be used by themselves toeliminate vibration effects, but heavy filtering alsoincreases settling time. The DFSENS (digital filtersensitivity) and DFTHRH (digital filter threshold)parameters can be used to temporarily override filteraveraging and improve settling time:• DFSENS specifies the number of consecutivescale readings that must fall outside the filterthreshold (DFTHRH) before digital filteringis suspended.• DFTHRH sets a threshold value, in displaydivisions. When a specified number ofconsecutive scale readings (DFSENS) falloutside of this threshold, digital filtering issuspended. Set DFTHRH to NONE to turn offthe filter override.Tracer AV Installation Manual - Appendix 37
Page 4 and 5: 5.0 EDP Commands...................
Page 6 and 7: 1.2 Display and KeypadFigure 1-1 sh
Page 8 and 9: Figure 2-2. Tracer AV (back) securi
Page 10 and 11: Figure 2-6. Remote Display CutoutFi
Page 12 and 13: There are two socketed DB-9 connect
Page 14 and 15: 3.0 ConfigurationTo configure the T
Page 16 and 17: 3.1.5 Editing Integers1. By pressin
Page 18 and 19: CONFIG MenuMOTBAN 1numberOVRLOASMPR
Page 20 and 21: FORMAT MenuLevel 3 submenusPrimary
Page 23 and 24: 3.2.6 Program MenuDEFCALCONFIGXXXXX
Page 27: 4.0 CalibrationThe Tracer AV can be
Page 30 and 31: 5.0 EDP CommandsThe Tracer AV can b
Page 32 and 33: Command Description ValuesPRI.DECPN
Page 34 and 35: 5.1.6 Normal Mode CommandsThe seria
Page 36 and 37: 6.0 Appendix6.1 Error MessagesThe T
Page 38 and 39: 6.3 Continuous Output (Stream) Form
Page 42 and 43: 6.6.3 Setting the Digital Filter Pa
Page 44 and 45: 6.8 Regulatory Mode FunctionsREGULA
Page 46: Tracer AV Limited WarrantyRice Lake

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