Extech Instruments DO210 User Manual

DO210-en-GB_v1.2 11/14
4
DissolvedOxygen(DO) Measurements
MeasurementPreparation
Beforetakingmeasurements,performthecalibrationdescribedaboveifnecessary.
TakingMeasurements
1. PressandholdtheFunctionbuttonforatleast2secondstochangefrom%O2tomg/Lor
frommg/Lto%O2.ForDOmeasurementsselectmg/L(milligramsperliter).
2. Immersetheprobeinthesolutionundertest.Foroptimumautomatictemperature
compensation,immersetheprobetoadepth
ofatleast4"(10cm).
3. Waituntilthedisplaystabilizes.
4. Thevelocityoftheliquidcomingintocontactwiththeprobemustbeatleast0.6to1
ft/min(0.2to0.3m/s).Ifthesolutionisstanding,stirthesolutionwiththeprobeoruse
an
agitator.
5. Rinsetheprobewithcleanwateraftereachuseandcovertheprobeheadwiththe
probeheadprotectivecover.
OxygeninAir(%O2)Measurements
MeasurementPreparation
Beforetakingmeasurements,performthecalibrationdescribedearlierifnecessary.
TakingMeasurements
1. PressandholdtheFunctionbuttonforatleast2secondstochangefrommg/Lto%O2if
necessary.Foroxygeninairmeasurementsbesuretoselect%O2.
2. Holdtheprobeintheareaundertestandwaituntilthedisplaystabilizes.
TemperatureMeasurements
Thelowerdisplaywillindicatethetemperatureofameasuredsolutionorthetemperatureof
theair(dependingonwhattypeofmeasurementtheuserisperforming).Tochangethe
temperatureunitofmeasure
o
C/
o
FfollowtheprocedurebeloworrefertotheSettingsmode
section:
 PressandholdtheSettingbuttonfor5seconds(untilabeepisheard)toaccessthe
Settingmode
 PresstheSettingbuttonmomentarilytwomoretimes
 UsetheUParrowbuttontoselect
o
Cor
o
Ftemperatureunits
 PressENTERtosavethesettingandpressESCtoreturntothenormalmodeofoperation

DataHold
PresstheHoldkeytofreezethedisplayedvalue.TheLCDwilldisplayHOLDalongwiththeheld
reading.PresstheHoldkeyagaintoreleasethedataholdfunction.

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Extech Instruments DO210 Specifications

General

Brand	Extech Instruments
Model	DO210
Category	Measuring Instruments
Language	English