Ebtron GTC116 - GTC116 Changing Factory Default Setup Menu Settings; Setup Menu Options; Adjusting the Low Limit Cutoff Feature; Selecting Actual and Standard Output Measurement Type

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IG_GTC116_R3A
5.5 GTC116ChangingFactoryDefaultSetupMenuSettings
5.5.1 SetupMenuOptions
TheGTC116Transmitterissetupandtestedatthefactorytobefullyoperationalwhensensorprobesare
connectedandpowerisapplied(setthepowerswitchtothe“ON”position).Factorysettingscaneasilybe
changedusingtheSETUPMENUbysimultaneouslypressingandreleasingthe“UP”and“DOWN”buttons
whilethe
transmitterisinitsnormaloperatingmode.AppendixAdetailstheSETUPmenus.NavigatethroughtheSETUP
menustomakechangestothetransmitterconfiguration.Thesettingstakeeffectimmediately.Thefollowingare
commonfieldmodificationstothefactorydefaultsettings.
5.5.2 AdjustingtheLowLimitCutoffFeature
Thelowlimitcutofffeature(menuitemLLIMIT=)forcestheoutputsignalfortheairflowratetozerowheneverthe
calculatedairflowratefallsbelowthespecifiedLowLimitvalue.
5.5.3 SelectingActualandStandardOutputMeasurementType
Thetransmitterissetfromthefactorytoprovideactualairflowmeasurementunits(displayedas“ACFM”and
“AFPM”).Inthismode,airflowmeasurementsarecalculatedforactualinletconditions.Ifusingactualairflow,
correctionsforaltitudeareenteredthroughtheALT=settingintheSetupmenu.If desired,theoutputcan
beset
toprovidestandardairflowmeasurementunits(displayedas“SCFM”and“SFPM)whichprovidesmeasurements
thatarecorrectedtostandardconditions.
5.5.4 OutputScaling
EBTRON’sGoldSeriessensorsareindividuallycalibratedbetween0andthefactorydefaultfullscaleinwind
tunnelstraceabletotheNationalInstituteofStandardsandTechnology(NIST).Sensorsareindependentand
produce“percentofreading”accuracy.Changingthefullscalevaluedoesnotchangetheaccuracyofthedevice.
Factory
defaultanalogoutputscalingcanbechangedwithintheSETUPmenus.
5.5.5 ChangingtheLCDDisplayfromVolumetricFlowCFMtoVelocityFPM
TheGTC116transmitterisshippedfromthefactorytoindicatevolumetricflow.TodisplayvelocityinFPM,enter
theSETUPmenuandintheDISPLAYsubmenu,changethe“*LCDUM=ACFM”to“*LCDUM=AFPM”.Changingthe
LCDdisplayunitswillnotaffecttheanalogoutputsignal.
5.5.6 ConvertingtheAnalogOutputSignalfromFPMtoCFM
TheGTC116transmitterisshippedfromthefactorywithanalogoutput“OUTPUT1”settoindicatevelocityin
AFPM.Toautomaticallyconvertthisanalogvelocityoutputtovolumetricflow(ACFM),simplysetthe*AO1UM
fromAFPM(default)toACFMintheSETUPmenu.Ifyouwishtomanuallyconvertthe
velocityoutputto
volumetricflow(ACFM),simplymultiplytheindicatedoutputvelocity(inFPM)bythefreeareaoftheairflow
probeinstallationlocation.ReferalsotoTable7foracompletelistingofconversionsforeachoftheanalog
outputsoftheGTC116.TheAO1fullscaleanalog
output(OUTPUT1)valueisdeterminedbytheAO1FSsetting
withintheSETUPmenu.
5.5.7 LockingtheConfigurationSettings
TheGTC116transmitterconfigurationsettingscanbelockedatoneofthreesecuritylevelswithintheSECURITY
submenuusingtheLOCKSEC=item.
WhenLOWsecuritylevelisselected(LOCKSEC=LOW)thelast4digitsoftheboardserialnumberareautomatically
assignedasthelockcode.Toseeboardserial
number,navigatetoDIAGNOSTICSmenuinSERIALNUMBERSitem.
WhentheMEDsecuritylevelisselected(LOCKSEC=MED)theuserentersandconfirmsasecuritycode.Inthe
eventthatthiscodeislost/misplaced,EBTRONcanprovideakeythatisuniquetothetransmittertounlockit.
ContactEBTRON
customerserviceforthiscode.
WhentheHIGHsecuritylevelisselected(LOCKSEC=HIGH)theuserentersandconfirmsasecuritycode.Inthe
eventthatthiscodeislost/misplaced,thetransmittermustbereturnedtothefactoryinordertounlockit.
WhenLOCKSEC=HIGHisselected,theuserdefinedsettingcanonlybechangedafterenteringtheuser
definedcode.STORETHELOCKCODEINASAFELOCATION!Forsecurityreasons,theHIGHlevellockcode
canonlyberesetbyreturningthetransmittertothefactory.
!