User manual

WQ500 Series-EU-EN V1.2 10/13

pHMeasurement

1. PressMODEtochoosepHmode.

2. Aftercalibration,rinsethepHelectrodewithcleanwaterandwipeitdry.

3. Dip the  electrode and the temperature probe into the sample solution that is going to be

measured.

4. Stirgentlyandwaituntilastablereadingcanbeobtained.



ORPMeasurement

1. InserttheORPelectrode,andpressMODEtochooseORPmode.

2. RinsetheORPelectrodewithcleanwaterandwipeitdry.

3. Diptheelectrodeintothesamplesolutionthatisgoingtobemeasured.

4. Stirgentlyandwaituntilastablereadingcanbeobtained.

Notes:



1. Thedisplaywillshow“‐‐‐‐”inanover‐rangecondition.

2. Aftermeasurement,rinsetheelectrodewithcleanwater.

3. Replacethesoakingbottle.Thebottleshouldalways be filledwithsoakingsolution(4MKCL).

COND,TDS,SalinityMeasurement

1. InsertConductivitycell,andpressMODEtochooseCOND,TDSorSaltmode.

2. Aftercalibration,rinsetheconductivitycellwithcleanwaterandwipeitdry.

3. Dip the  electrode and the temperature probe into the sample solution that is going to be

measured.

4. Stirgentlyandwait

untilastablereadingcanbeobtained.

Notes:

1. Thedisplaywillshow“‐‐‐‐”inanover‐rangecondition.

2. Themeterauto‐rangestoμS/cmormS/cm,orppmorppt.

3. Aftermeasurement,rinsethecellwithcleanwaterandreplacetheprotectivecap.

4. Donot

touchorwipethesurfaceoftheinnerblackplateoftheconductivitycell.

DOMeasurement

1. RemovetheprotectioncapandturnonthepowerandpressMODEtochooseO2mode.Wait

10to30minutesfortheprobetopolarize.Thereadingshouldbeapprox.101.7%(saturation)

aftertheprobehascompletelypolarized.

2. SelectthedesiredunitsofmeasurebypressingMODEuntil

theproperunitsareshowninthe

display.

3. Placetheprobeinthesampletobemeasured.Stirtheprobeinthesampletoremoveany

trappedairbubblesfromthemembranesurface.

4. Allowthemetertimetosettletothefinalmeasurementvalue.