ECD FCA-22 - Page 11

FCA‐22InstructionManual
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Page11
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Performa DPDtest onthe sampleandenter themeasuredppm Cl
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value in theBuffer:#2 ppmMenu
andacceptthecalibration.Thedisplaye dCalvalue,x.xxmV/ppmCl
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willchan getothenewslopevalue.
Foradetaileddescription seeElectrodeSpanCalibrationintheC‐22manual.
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**RecordthedisplayedCl
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ppmreadingatthesampletime,ifthevaluehaschangedbeforefinishing
theDPDtestthencorrecttheinputvalueappropriately**.
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The zero point of the sensor is extremely stable and should not need adjusting. If the calibration is
neededthenplacethesensorinasampleofchlorinefreeprocesswaterandallowittoequil
ibratefor½
hour.Initiatethe standardizationin theBuffer:#1ppmMenu.TheStandardizeValue willbe0.00ppm
Cl
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andtheCalvaluewilldisplaythenewmVsignalfromthesensor.
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ChlorineCalibrationScreenShots
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#1HomeScreen
PressMenuSelect
Downbutton
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#2GraphicalDisplay
PressMenuSelect
Downbutton
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#3SelectionMenu
SelectBUFFERby
simultaneouslypressing
thehorizontalCALIBRATE
keys.
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#4ZeroPointCalibration
(optionalstep,setatfactory,
moveto#7)
Initiatethecalibrationby
simultaneouslypressing
thehorizontalCALIBRATE
keyswiththesensorina
0ppmchlorinesolution.
#5Adjustingzeropoint
Ifanon‐zeroppm
solutionisusedthen
adjustthevalueby
selectingthedigitwiththe
horizontalkeysandthe
valuewiththeverticalkey.
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#6Acceptingthe
Calibration
Acceptthecalibrationby
pressingtheMenuSelect
downkey.
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#7LeaveZeroCalibration
Screen
PressMenuSelect
Downbutton
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#8SettingChlorineSlope
Initiatethecalibrationby
simultaneouslypressing
thehorizontalCALIBRATE
keyswiththesensorina
knownchlorinesolution.
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