Milwaukee MW803 User manual

USER MANUAL
MW803 • MW804
Pocket-size
pH/EC/TDS/Temperature
Meters
SPECIFICATIONS
Range
0.00 to 14.00 pH
 0to3999μS/cm(MW803)
 0to2000ppm(MW803)
 0.00to20.00mS/cm(MW804)
 0.00to10.00ppt(MW804)
 0.0to50.0°C/32.0to122.0°F
Resolution
0.01 pH
 1μS/cm/1ppm(MW803)
 0.01mS/cm/0.01ppt(MW804)
 0.1°C/0.1°F
Accuracy (@25°C)
0.05 pH
 2%FS(EC/TDS)
 0.5°C/±1°F
TDS Factor
 0.45to1.00(CONV)
Temperature Compensation
 Automatic,withß=0.0to2.4%/°C
Calibration
 Automatic,1pointforECand1or
 2pointsforpH
Probe Replaceable MI60P
Environment
 0to50°C;100%RHmax.
Battery Type
 4x1.5V;IECLR44,A76
Battery Life
 Approx.100hoursofuse
Auto-off
 After8min.ofnon-use
Dimensions / Weight
 200xdia38mm/100g
Makesurethegasketisinplacebeforescre-
wing back the cap. Batteries should only be
replacedinasafeareausingthebatterytype
speciedinthisinstructionmanual.
ACCESSORIES
MI60P Replaceableprobefor
 MW803&MW804
M10030B12.88mS/cmcalibration
 solution,20mlsachet,25pcs
M10031B1413μS/cmcalibrationsolution,
 20mlsachet,25pcs
M10032B1382ppmTDSCalibrationSolution,
 20mlsachet,25pcs.
M10038B6.44pptTDSCalibration,
 20mlsachet,25pcs.
MA906012.88mS/cmcalibrationsolution,
 230mlbottle
MA9061 1413μS/cmcalibrationsolution,
230mlbottle
MA9062 1382ppmTDSCalibration
 Solution,230mLbottle
M10016BCleaningsolution,20mlsachet,
 25pcs
M10000BRinsesolution,20mlsachet,
 25pcs
M10004BpH4.01buffer,20mlsachet,
25pcs.
M10007BpH7.01buffer,20mlsachet,
 25pcs.
M10010BpH10.01buffer,20mlsachet,
 25pcs.
MA9004pH4.01buffer,230mlbottle
MA9007pH7.01buffer,230mlbottle
MA9010pH10.01buffer,230mlbottle
MA9006 pH6.86buffer,230mlbottle
MA9009 pH9.18buffer,230mlbottle
MA9015Electrodestoragesolution,230ml
• ThesecondaryLCDdisplays“ESC”for1se-
condandthenthemeterreturnstothenormal
measurementmode.
• To reset to the default values and clear a
previous calibration, press the SET/HOLD
button after entering the calibration mode
andbeforetherstpointisaccepted.
• The secondary LCD displays “CLR” for 1
second,themeterresetstothedefaultcalib-
rationandtheCALtagontheLCDturnsoff.
• Ifa validbuffer value is detected, the REC
messageisdisplayedandthemetercomp-
letesthecalibrationprocedure.
• TheLCDshowstheacceptedvaluewiththe
“OK2”messageandtheinstrumentreturns
to the normal measurement mode. Other-
wise,ifnovalidbufferisdetected,themeter
displaystheWRNGmessage.
PROBE REPLACEMENT
• Removetheprotectivecapandunscrewthe
plasticringonthetopoftheprobe.
• PullouttheMI60Pprobeandreplaceitwith
anewone.
• Make sure the gaskets are in place before
screwingbackthering.
BATTERY REPLACEMENT
Whenthebatteriesbecomeweak,thebattery
symbolontheLCDwilllightuptoadvisethat
onlyafewhoursofworkingtimeisremaining.
ThemeterisalsoprovidedwithBEPS(Battery
Error Prevention System), which avoids any
erroneous readings due to low battery level
byautomaticallyswitchingthe meter off.It is
recommendedtoreplacethebatteriesimme-
diately.
To replace the batteries unscrew the battery
compartmentcapandreplaceallfour1.5Vbat-
terieswhilepayingattentiontotheirpolarity.

OPERATIONAL GUIDE
• Removetheprobecapandturnthemeteron
bypressingtheON/OFF/CALbutton.Allthe
usedsegmentsontheLCDwillbevisiblefor
1secondoraslongasthebuttonispressed.
• Immersetheprobeinthesolutiontobetes-
tedand select eitherpH, ECor TDSmode
withSET/HOLDbutton.
• Stirgentlyandwaitforthereadingtostabilize,
i.e.thestabilityindicatorontheLCDturnsoff.
The pH and EC (or TDS) values are auto-
maticallycompensatedfortemperatureand
will be displayed on the main LCD, while
thetemperatureisshownonthesecondary
LCD.
• To freeze the display,whileinmeasurement
mode, press and hold the SET/HOLD but-
ton. The “HOLD” message appears on the
secondary display and  the reading will be
frozenontheLCD.
• Press  any  button to  return  to  normal
mode.
• To turn the meter off,presstheON/OFF/CAL
button. The “OFF” message will appear on
thesecondarydisplay.Releasethebutton.
Notes:
• Before taking any measurement, make sure
themeteriscalibrated(theCALtagison).
• After use always turn the meter OFF, rinse
theprobewithwaterandstoreitwiththepro-
tectivecap.
Measuring unit
on main LCD
Main LCD
Temperature reading
Secondary LCD
Low battery indicator
Automatic temperature
compensation
Calibration indicator
Stability indicator
SETUP
Setup mode allows the selection of tempera-
ture (°C or °F), calibration buffer set, in pH
modeonly,TDSconversionfactor(CONV)and
temperature coefcient (BETA), in EC mode
only.ToentertheSetup mode,presstheON/
OFF/CALbuttonuntil“CAL”onthesecondary
LCD is replaced by “TEMP” and the current
temperatureunit(e.g.TEMP°C).Then:
In EC and pH mode:
• for °C/°F selection:
usetheSET/HOLDbutton,thenpresstheON/
OFF/CALbuttontogointhesettingsmenuand
toreturntothenormalmeasurementmode.
InECmodeonly:
• to change the TDS factor value:
aftersettingthetemperatureunit,pressON/
OFF/CALbuttononcetoshowthecurrentval-
ue(e.g.0.50CONV).Selectthedesiredvalue
byusingtheSET/HOLDbutton,thenpressON/
OFF/CALbutton twice toreturnto the normal
measurementmode.
• to change the temperature coefcient:
after setting the TDS factor, press ON/OFF/
CAL button to show the current value of the
temperaturecoefcientß(e.g.2.1BETA).Use
theSET/HOLDbuttontosetthedesiredvalue,
thenpressON/OFF/CALbuttontoreturntothe
normalmeasurementmode.
InpHmodeonly:
• to change the calibration buffer set:
after setting the temperature unit, press ON/
OFF/CALbuttononceandselectthebufferset
(“pH7.01BUFF”forpH4.01/7.01/10.01or“pH
6.86 BUFF” for NIST set 4.01/6.86/9.18) by
using the SET/HOLD button. Press ON/OFF/
CAL button to return to the normal measure-
mentmode.
EC MEASUREMENT AND CALIBRATION
PROCEDURE
Select the EC or TDS mode with the SET/
HOLDbutton.
Submerge the electrode in the solution to be
tested. The measurements should be taken
whenthestabilityindicator⌛onthetopleftof
theLCDdisappears.
• For better accuracy, frequent calibration of
the tester is recommended. Calibration is
alsonecessaryafterprobereplacement,after
testingaggressive chemicalsand where ex-
tremeaccuracyisrequired.FromnormalEC
operationmode,pressandholdtheON/OFF/
CALbuttonuntilthe“OFF”messageonthe
secondaryLCDissubstitutedby“CAL”.Re-
leasethebutton.
• Immerse the probe in the proper calibration
solution: M10031 (1413 μS/cm) for MW803
andM10030(12.88mS/cm)forMW804.
• Oncethe calibration hasbeen automatically
performed,theLCDwillshow“OK”for1sec-
ondandthemeterwillreturntonormalmea-
surementmode.
• Sincethereisaknownrelationshipbetween
ECandTDSreadings,itisnotnecessaryto
calibratethemeterinTDSifitwaspreviously
calibratedinECmode.
pH MEASUREMENT AND CALIBRATION
SelectthepHmodewiththeSET/HOLD
button.Submergetheelectrodeinthesolution
tobetested.Themeasurementsshouldbeta-
kenwhenthestabilityindicator⌛onthetopleft
oftheLCDdisappears.
Forbetteraccuracy,frequentcalibrationofthe
tester is recomanded. Calibration is also ne-
cessaryafterelectrodereplacement,aftertes-
tingaggressivechemicalsandwhereextreme
accuracyisrequired.
• From normal operation mode, press and hold
theON/OFF/CALbuttonuntiltheOFFmessage
onthesecondaryLCDissubstitutedby“CAL“.
Releasethebutton.
• The instrument enters the calibration mode
by displaying “pH 7.01 USE“ (or ‘‘pH 6.86
USE“iftheNISTbuffersetwasselected).
• For a single-point calibration, immerse the
electrodeinanybuffer,i.e.pH4.01,7.01(or
6.86),10.01(or9.18).
• The meter activates the automatic buffer
recognition.Ifnovalidbufferisdetected,the
meterkeepstheUSEindicationactivefor12
seconds,andthenreplacesitwithWRNGin-
dicating that the sample being measured is
notavalidbuffer.Otherwise,ifavalidbuffer
is detected, then its value is shown on the
main display, and REC appears on the se-
condaryLCD.
• IfthepH7.01(or6.86)wasused,pressthe
SETbuttontoexittheCalibrationmodeand
the “OK 1” message will appear on the dis-
play. The calibration point is stored and the
meterreturnstonormalmeasurementmode.
Forbetteraccuracy,itisalwaysrecommended
toperforma2-pointcalibration.
• For a 2-point calibration, immerse the elec-
trodeinpH7.01(or6.86)buffersolution.
• After the rst point has been accepted, the
meterwillthenaskforthesecondbufferand
themessage“pH4.01USE”willappear.
• Rinsetheelectrodeandimmerseitinthese-
condsolution(pH4.01,10.01or9.18).
Notes:
• When the calibration procedure is completed,
theCALtagisturnedon.
• To quit the procedure and return to the last
calibrationdata,afterenteringthecalibration
modepresstheON/OFF/CALbutton.