RayTek 54301 operating instructions 42MID

Operation
6.4.4AdvancedPeakHold
Thisfunctionsearchesthesensorsignalforalocalmaximum(peak)
andwritesthisvaluetotheoutputuntilanewlocalmaximumis
found.Beforethealgorithmrestartssearchingforalocalmaximum,
theobjecttemperaturehastodropbelowapredefinedthreshold.If
theobjecttemperatureraisesabovetheheld��valuewhichhasbeen
writtentotheoutputsofar,theoutputsignalfollowstheobject
temperatureagain.Ifthealgorithmdetectsalocalmaximumwhile
theobjecttemperatureiscurrentlybelowthepredefinedthreshold
theoutputsignaljumpstothenewmaximumtemperatureofthis
localmaximum.Oncetheactualtemperaturehaspassedamaximum
aboveacertainmagnitude,anewlocalmaximumisfound.This
magnitudeiscalledhysteresis.
Temp

output temperature
object temperature
hysteresis
threshold
Time
Figure28:AdvancedPeakHold
Theadvancedpeakholdfunctionisonlyadjustablebymeansofthe
DataTempMultiDropSoftware.
42MID