Delphin ProfiMessage - 9.1.5.3 Analogue outputs

ProfiMessage
AC coupling
ThedifferentialinputisfactorysetasDC-coupled.SwitchingtoACcouplingispos-
sibleusingDIPswitchesonthesignalconditioningboard.TheDCpartofasignal
iseliminatedthroughaHW-filter.Cut-offfrequencyisaroundca.4Hz.
TheDCpartofasignalcanalsobeeliminatedthroughaSW-filter(i.e.throughthe
DSP).
Scaling / sensor compensation
Channelscanbeindividuallyscaled.Scalingtakesplaceintherequiredunit(e.g.
±100µmfordistance/clearancesensorsor±50gforaccelerationsensors).Zero
offset/correctionandamplificationadjustmentcanbeperformedusingsensor
compensation.
Anti-aliasing filter (SW)
The(SW)anti-aliasingfilter'sfrequencylimitissetautomaticallyat40%ofthe
samplingfrequencysetting.Thisfilterisoptional.Itisadigitaldeeppassofthe
8thor4thorderwithButterworthcharacteristic.
Application
Analogueinputsdelivercontinuousorevent-triggeredrecordingofvibrationsig-
nalsorofsignalsrequiringrapidsampling.
9.1.5.3 Analogueoutputs
Properties
2analogueoutputs.Voltagerange0to10V.Resolution12bitand2.4mV.
BoardV2.0x:Outputrangerestrictedto0.3Vto9.7V.
BoardV2.1x:Outputrange0to10V.
Max.loadof4mAatmin.2.5kΩ.
Refresh rate
Determinedbysourcechannel(e.g.set-pointchannel).
Typicalratesare0to10Hz.DependentonDSPload.
Precision
DCprecisionisfactorysetusingcalibrationandadjustment.
Basicprecisionis±0.25%oftheoutputrange,i.e.±25mV.
Scaling
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Delphin Technology AG
Dezember 2015
ProfiMessage Manual