TorqueStar DTT Opta Manual 7 - Crane Electronics

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OPERATOR’S MANUALSECTION 1Use the and keys to move the arrow across all ofthe digits in turn, and the and arrow to cyclethrough the alpha numeric characters to input the correctdigits until the code displayed is the same as the one on thecertificate.Options available:Activate the Unlock Code.The software is now unlocked. Features marked with a tickare available to the user.List FeaturesReturn to Previous ScreenNOTE :Any items not ticked in the list may be encountered duringoperating the Opta as greyed out items. When attempts aremade to access these icons, an alert message will appearadvising the user that this item is currently unavailable. It ispossible for the user to upgrade to include these options bycontacting Crane Electronics Ltd. An update activation codecan be supplied to enable the user to access these featureswithout the need to return the Opta to the factory.Icons used in the Unlock screenReturn to previous screen.Activate unlock codeList featuresGRAPHSTorqueStar Opta allows the selection of the maximumduration of the Trace function.Select the time required to suit your application.30
OPERATOR’S MANUALSECTION 1GLOSSARY OF TERMSCpThis is a capability index which shows the process capabilitypotential but takes no account of how centred the processis. This is used for capability studies and Cp may range invalue from 0 to infinity. A large value indicates greaterpotential capability and a value of 1.33 or greater is desirable.High OutputTorque transducer with no coding links but internal preamplifierTransducer(H/O) giving an output signal level oftypically 1 or 2 volts.HorizontalCollection of data by round, taking one reading for eachsampling Job in turn.Max - MinCp =6 s(Max and Min are limit values)Industry Standard Transducer (I/S)Type of transducer, with no pre-amplifier or coding links, butwith the exact rated torque, marked on the body.CpKThis is an index which indicates whether the process willproduce units within the tolerance limits. If the process iscentred on the nominal value then CpK will have a valueequal to Cp. For values of CpK between 0 and 1 then someof the 6 sigma spread will fall outside tolerance limits but forvalues greater then 1 these will all be within tolerance. Anegative value of CpK indicates that the process mean isoutside tolerance limits. A value of 1.33 or greater isdesirable.(Max - x-) (x- - Min)CpK = lesser ofor3 s3 s(Max and Min are limit values)CAMThis is an alternative capability index requiring a minimumof 30 readings to be taken. In this implementation, 5 subgroupsof 6 samples are used for each calculation. The CAMcalculation uses the following formula:Max - Min x Cam Factor *6 x Average Sample Value* CAM Factor is taken from a table (in the case of 5 x 6samples = 1.910)JobSpecification of one particular torque value to be collected.Each Job has a name of up to 14 characters, 8 ifdownloaded from a PC. TorqueStar Opta can store up to275 different Jobs at any one time.Master RoundA sequence of up to five rounds. It is used to allow a collectionsequence, which is part vertical, part horizontal.Max Torque ValueUpper tolerance level of any reading. This can equal but notexceed the torque rating of the transducer to be used.Min Torque ValueLower tolerance level of any reading.No. of Sub GroupsNumber used to allocate memory space in TorqueStar Opta,for a particular Job. May be set in the range of 1 to 50.RoundA sequence of Jobs to be collected either horizontally orvertically. Each round has a name of up to 14 characters, 8if downloaded from the PC.SampleIndividual torque reading.31
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