Owner manual

Page 2
Informationsubjecttochangewithoutnotice.In-Situ,In-Situlogo,BaroMerge,BaroTROLL,HERMIT,iSitu,RDO,Pocket-Situ,RuggedCable,RuggedReader,TROLL,andWin-Situare
trademarksorregisteredtrademarksofIn-SituInc.©2012.Allrightsreserved.
For more information, contact In-Situ Inc.
221 East Lincoln Avenue, Fort Collins, CO 80524
1-800-446-7488 (toll-free in U.S.A. & Canada)
1-970-498-1500 (international & domestic)
www.in-situ.com
0080832 Rev. 004 04/13
Application
TheRDO®Sensorisextremelystable,whicheliminates
theneedforfrequentcalibration.Standardoperating
procedures,environmentalconditions(e.g.,potential
forfouling,abrasiveconditions)maynecessitate
routinecalibration.
AfterinstallinganewRDOSensor,In-Situ®recommends
thatyouperformacalibration.Forbestresults,perform
a2-pointcalibrationat100%and0%dissolvedoxygen
(DO)saturationbeforeusingthesensor.
100% Oxygen Saturation Calibration
1. Installthebatteriesintheportableairpumpas
showninthediagramontheinsidecover.
2. Fillthelargecalibrationcuptowithin4cm(1.5in.)
ofthetopwithcleanwater.
Note: Use tap water, distilled water, or your sample matrix if it
is freshwater, not brackish or saline.
3. Turnonthebubbler,openthepinchvalveonthe
tubing.Runatfullowratefor10minutestofully
saturatethewaterwithoxygen.After10minutes
youcanusethecontrolvalvetomatchthewater
turbulenceconditionsexpectedintheeld.
4. Placetheinstrumentinthewaterensuringthat
thesensorandthetemperaturethermistorare
completelysubmergedandthattheRDOsensing
materialisnotinthedirectpathofthebubbles.
5. Connecttheinstrumenttoacomputerand
establishaconnectiontothecalibrationsoftware.
6. Followthecalibrationwizardprovidedinthesoftware.
Note: Video tutorials and operator’s manuals are available
on the In-Situ website www.in-situ.com in the Tech
Resources section.
0% Oxygen Saturation Calibration
1. Fillthesmallercalibrationcuptotheupperllline
withsodiumsulte(NA
2
SO
3
)solution.
2. Placetheinstrumentinthesolutionandallowtime
fortemperaturestabilization.
3. Ensuretherearenoairbubblesonthesensing
surfaceoftheRDOSensor.
4. Followthecalibrationwizardprovidedinthesoftware.
Note: Video tutorials and operator’s manuals are available
on the In-Situ website www.in-situ.com in the Tech
Resources section.
5. Whenyouarenishedrinsethoroughlyincleanwater.
Replacement Parts
Sodium sulte solution, 500 mL 0017670