NCR 74 OFX (7874) - Page 56

3-14 Chapter 3: Installation
Calibrating and Exercising the RealScan 74
1. Determinethetypeofweightsettouseforcalibration.Thereatwoweightsets,
KilogramsandPounds.
• FortheKilogramweightset,youmusthaveacalibratedKGweightset,12.5
KGtotal.Weightcombinations2.5kg,7.5kg,and12.5kgarerequired,with
suggestedindividualweightsmadeupofasetoftwo5kgweights,one2kg
weight,andone500gweight.
• ForthePoundweightset,youmusthaveacalibratedLBweightset,30
poundstotal.Weightcombinations5lb,15lb,and30lbarerequired,with
suggestedindividualweightsmadeupofasetoftwo10lbweights,one5lb
weight,two2lbweights,andone1
lbweight.
2. ApplypowertotheRealScan74ifitisoff.TheunitneedstobeONfor30minutes
priortocalibration,unlessitiscoolintheenvironment(below20°C(68°F)),in
whichcasethescalemustbeonforatleast6hours
beforeitcanbecalibrated.
3. EXERCISETHESCALE
Note: YouMUSTexercisethescaleBEFOREthescalecanbecalibrated
a. RemovetheTopPlate.
b. PresstheCalibrationSwitch.
i. RemovetheclearplasticSwitch Coverlocatedontheright–frontcornerof
theunit.Lifttheleftsideof
thecovertounlatchandremoveit.
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IftheCalibrationSwitchSecurityCoverissecuredwithalead/wireor
paperseal,removetheseal.