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InformationSheet

RelativeHumidityCalibrationReferenceStandards

RH300-CALforusewithExtechRH300HumidityMeter

Introduction

CongratulationsonyourpurchaseoftheExtechRelativeHumidityCalibrationStandards.Twobottlesareincluded,oneforthe75%Relative

Humidityreferenceandoneforthe33%RelativeHumidityreference.The75%RelativeHumidityreferenceusesSodiumChloride(NaCl)to

producethestandard.The33%RelativeHumidityreferenceusesMagnesiumChloride(MgCl).InstructionsforcalibratingExtechInstruments

HumidityMeters,usingthesereferencestandards,aresuppliedwiththeHumidityMeter.

TemperatureCompensation

ThesestandardsprovideaRelativeHumidityreferenceatroomtemperature(68

o

Fand20

o

C).Ifthereferenceisallowedtodeviatefromroom

temperature,theRelativeHumidityprovidedbythestandardwillbelowerorhigher,dependingonthetemperature.

33%

ReferenceStandard

Temperature

59

o

F(15

o

C)68

o

F(20

o

C)77

o

F(25

o

C)86

o

F(30

o

C)95

o

F(35

o

C)

RelativeHu

midity

33.30%33.07%32.78%32.44%32.05%

75%ReferenceStandard

Temperature

59

o

F(15

o

C)68

o

F(20

o

C)77

o

F(25

o

C)86

o

F(30

o

C)95

o

F(35

o

C)

RelativeHumidity

75.61%75.47%75.29%75.09%74.87%

CareandUse

Thereferencebottlesshouldbekeptclosedandtightlysealedwhennotinuse.Ifthecontentsofthebottlesarelefttodryandharden,thebottles

mustbeimmediatelyreplaced.

Copyright2006ExtechInstrumentsCorporation.©

Allrightsreservedincludingtherightofreproductioninwholeorinpartinanyform.

RH300-CALV1.13/06

Product specificaties