Owner's manual

<6 BASIC OPERATION> 6-7
IM 11Y01B02-01E-A 4th Edition September 11, 2012-00
The TREND SCREENisidenticalforBASICor
ADVANCEDMENUS.Itallowstheusertotrenduptothe
last750minutes(ofcurrentday)ofdatafor:
REFRESH - The trend will not update automatically, use
the refresh button to update the trend
GAS 1–analyzerreadingofgas1concentration
STDEV1–thestandarddeviationof25consecutive
concentrationreadingsofGas1
GAS 2–analyzerreadingofgas2concentration
STDEV2–thestandarddeviationof25consecutive
concentrationreadingsofGas2
TRANS.–transmission%oflaserlightthroughthe
process
LTS–analyzerlasertemperaturesetpoint
LT–analyzerlasertemperature
PCP–peakcenterpositionfortheabsorptionpeak
TEMP–processgastemperature
PRES–processgaspressure
Alongside the selection buttons the current value is
displayed. When selecting the information to trend user
will be prompted to enter minimum value, maximum value
and time to trend.
ADVANCED CONFIGURE MENU
PROCESS PATH LENGTH–DONOTADJUST,factory
settypical40”(distancelaserbeamisexposedto
processgas).
PROCESS PRESSURE–allowsselectionofFIXED(value
enteredintosoftware),ACTIVE(analyzerfedpressure
valuefromexternaltransducer),orCONTROL(cell
pressure controlled at a desired value with a proportional
valveandpump).InActivemode,aBack-Upvaluecanbe
entered, in case of active input failure.
TEMPERATURE–allowsselectionofFIXED(value
enteredintosoftware),ACTIVEINPUT(analyzerfed
temperaturevaluefromexternaltransducer),ACTIVE
AMBIENT(ambientgastemperaturederivedfrominternal
sensor),ACTIVEPEAKS(valuecalculatedfromthe
measurementspectrum),orCONTROL(celltemperature
controlledatadesiredvaluewithaheaterandrelay).In
ActiveInputmode,aBack-Upvaluecanbeentered,in
case of active input failure.
NON-PROCESS PARAMETER–iftheanalyzerisnot
purged with a gas that is free of the component being
measured(i.e.oxygen),thisallowsusertoenterthePath
Length,Pressure,TemperatureandConcentrationof
the purge gas that is present in the non-measurement
opticalpath(internalanalyzeropticalpath)..Fordetails,
seesection4.4.UsethisfeatureiftheTDLS220isbeing
purgedwithInstrumentAir(I/A)