Extech RF41 Bruksanvisning
Extech
Mätutrustning
RF41
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RF41-en-US_V1.3 3/15
User'sGuide
Battery/CoolantBrix (ATC)Refractometer
ModelRF41
Introduction
Congratulationson ofyourpurchase thisExtechRefractometer.
Precisionoptical shouldinstruments behandledgently;avoid
touchingtheopticalsurface.Carefuluseoftheseinstrumentswill
provideyearsofreliableservice.
Specifications
Range 0 to‐50ºCPropyleneGlycolfreezepoint
0 to‐50ºC Ethylene Glycol freeze point
1.15 to 1.30 specific gravity battery acid
0 to‐40ºC cleaning fluid freeze point
Resolution1ºC
Dimensions6.3 1.6 1.2" x x(160 40 x x 30mm);
Weight6.4oz.(180g)
Description
1. Eyepiece
2. MirrorTube
3. Adjustmentscrew
4. CoverPlate
5. Prism
Scale
Operation
Thisinstrumentmeasurestherefractiveindexof a sampleand
displaystheresultsinºCorSpecificgravity.
1.ZeroAdjustment
Cover the prism with a few drops of distilled water. Close the
coverplateandviewthelight/darkboundary(shadowline).If
necessary,turn thetheadjustmentscrewuntil shadowlinealigns
withthescale’szeroline.Thezerocalibrationshouldbe
performedatambienttemperatureandshouldberepeatedevery
30minutesifthe thetemperaturechanges.After zeroadjustment,
cleantheprismwith a softcloth.
2.SamplePreparationandReading
Coverthe theprismwith a few waterdropsofdistilled from
includedvial. the that theClose coverplateso liquidspreads
acrosstheentiresurfaceoftheprism without air bubbles or dry
spots.Allowthesampleto
remainontheprismfor
approximately30seconds.
Whileholdingtheinstrument
under a lightsource,look
throughtheeyepiece.Thebrix
concentrationisdeterminedby
the theintersectionof
boundaryofthelightanddark
fieldsonthe thescale.If scale
appearsoutoffocus,adjust by rotatingthe theeyepieceuntil
scaleis in focus.Theinstrumentalsofeaturesaneye‐guard to
preventstray eyepiecelightfromenteringthe andcausing
reflections.
Itmaybe necessary adjust to the thepositionof light tosource
maximizethe thecontrastof shadowline.Undernormal
conditions,optimalcontrastisobtained by holdingtheinstrument
underneath perpendicularand to a lightsource.
Once been (do a readinghas taken,wipedrywith a cleancloth not
washorrinse)andplace suppliedthe theinstrumentin plastic
case.Storetheinstrumentin a safe,dryenvironment.
3.AutomaticTemperatureCompensation(ATC)
Temperaturecompensationrelievesthe theuserof responsibility
tomeasuretemperatureandapply a correctionfactorwhen
takingreadings.This refractometer makes this correction
automatically. When ambient temperature varies from 20°C,
readings are automatically toadjusted compensatefor
temperaturevariancebetween10°Cto30°C.
Warranty
FLIRSystems,Inc.warrantsthisExtechInstrumentsbranddevicetobefreeof
defectsinparts and workmanshipfor oneyear fromdateofshipment(asixmonth
limitedwarrantyappliestosensorsandcables).Ifitshouldbecomenecessaryto
returntheinstrumentforserviceduringorbeyondthewarrantyperiod,contact
the theCustomerServiceDepartment authorization.for Visit website
www.extech.comforcontact information. A ReturnAuthorization(RA)number
mustbeissuedbeforeanyproductisreturned.Thesenderisresponsiblefor
shippingcharges,freight,insuranceandproperpackagingtopreventdamagein
transit.This applywarrantydoesnot todefects fromresulting actionoftheuser
suchasmisuse, improper wiring, operation outside of specification, improper
maintenanceor orrepair, unauthorizedmodification.FLIRSystems,Inc.specifically
disclaimsanyimpliedwarranties merchantabilityor orfitnessfor a specific
purposeand bewillnot liableforanydirect,indirect,incidentalorconsequential
damages.FLIR’s liabilitytotal islimitedtorepair or of replacement theproduct.
Thewarrantysetforthaboveisinclusiveandnootherwarranty,whether written
or ororal,isexpressed implied.
Calibration, CustomerRepair,and Care
Services
FLIRSystems,Inc.offersrepairandcalibrationservices for the
ExtechInstrumentsproductswesell.NISTcertificationformost
productsisalsoprovided.CalltheCustomerService
Departmentfor forinformationoncalibrationservicesavailable
thisproduct.Annual becalibrationsshould performedtoverify
meterperformanceand andaccuracy. Technical support
generalcustomerservice theisalsoprovided,referto contact
informationprovidedbelow.
Copyright ©2013 2015‐ FLIRSystems,Inc.
Allrightsreservedincludingtherightof orreproductioninwhole in inpart any
form
www.extech.com
X X
12345
Support 439 8324;Lines:U.S.(877) ‐ International: ‐ +1 (603) 324 7800
TechnicalSupport:Option3; ‐E mail:support@extech.com
Repair & Returns:Option4; ‐E mail:repair@extech.com
Productspecificationsaresubjecttochangewithoutnotice
Pleasevisitourwebsiteforthe datemostup‐to‐ information
www.extech.com
FLIRCommercialSystems,Inc., 9 TownsendWest,Nashua,NH03063 USA
ISO9001Certified
Produktspecifikationer
Varumärke: | Extech |
Kategori: | Mätutrustning |
Modell: | RF41 |
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