Extech Instruments 45170CM User manual

USERGUIDE
5‐in‐1EnvironmentalMeterwithCFM/CMM
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Model45170CM

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Introduction
ThankyouforchoosingtheExtechModel45170CM,5‐in‐1EnvironmentalMeter.The45170CM
measuresAirFlow,AirVelocity,RelativeHumidity,Temperature,andLightLevel.Thisdeviceis
shippedfullytestedandcalibratedand,withproperuse,willprovideyearsofreliableservice.
Pleasevisitourwebsite(www.extech.com)tocheckforthelatestversionofthisUserGuide,
ProductUpdates,andCustomerSupport.
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MeterDescription
1. VaneAirflowSensor
2. TypeKThermocoupleInputJack
3. Display
4. Power/ESCButton
5. Unit/Zero/ Button
6. C°/F°/Lux/Ft‐cd/Area/▲Button
7. LightSensor
8. RHandAirTemperatureSensors
9. HoldButton
10. Rec/EnterButton
11. Mode/▼Button
Note: Battery compartment on back of meter.
PowerON‐OFF
PressthePower/ESCbuttontoturnpowerONorOFF.Themeterwillperformashortself‐test
whenitisswitchedON.IfthemeterdoesnotswitchON,pleasecheckthestatusofthebattery.
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Measurements
A. AirVelocityMeasurements
1. UsetheModebuttontosteptotheAnemometermode(An).InAnemometermode,
thedisplaywillshowAirVelocityandTemperature.
2. PressUnitbuttontoselectdesiredunitofmeasure(FPM,MPH,KNOT,KM/H,orM/S).
3. FacetheAirFlowSensorintothesourceoftheairstream.
4. Allowtimeforthereadingtostabilizeandthennotethevalueonthedisplay.
B. RelativeHumidityandAmbientAirTemperatureMeasurements
1. UsetheModebuttontosteptotheRHmode(rH).InRHmode,thedisplaywillshow
theRelativeHumidityreading(upperright)andtheTemperaturereading(lowerleft).
2. Pressthe°C/°Fbuttontoselectthedesiredtemperatureunitofmeasure.
C. TemperatureMeasurementsUsingTypeKThermocouple
1. UsetheModebuttontosteptotheTypeKTemperaturemode(tP).InTemperature
mode,thedisplaywillshowonlythethermocoupletemperature.
2. Plugthethermocoupleintothemeter'sthermocoupleinputjackonthefaceofthe
meter.Ifnothermocoupleisconnected,orifthethermocoupleisdefective,themeter
willdisplaydashes.
3. Pressthe°C/°Fbuttontoselectthedesiredtemperatureunitofmeasure.
D. LightMeasurements
1. UsetheModebuttontosteptotheLightMetermode(Light).Forconvenience,theLCD
displayisorientated180°fromalloftheotherfunctiondisplays.
2. PresstheLux/Ft‐cdbuttontoselectLuxorFootcandleunitsofmeasure.
3. Beforemakingmeasurements‘zero’themeterbyblockingthelightsensor(tocausea
‘nolight’condition)andpressingtheZbutton.Thereadingshouldzero.
4. Tomeasurelight,positionthemetersothatthelightsourceshinesasdirectlyas
possibleonthemeter’slightsensordome.Notethereadingonthedisplay.
E. Airflow(CFM,CMM)Measurements
1. UsetheModebuttontoselecttheAirFlowmode(AirFL).InAirflowmode,themeter
canmeasurethevolumeofairmovingthroughaduct,forexample.Thedisplaywill
showtheCFM(cubicfeetperminute)orCMM(cubicmetersperminute)uniticonon
thebottomofdisplay.UsetheUNITbuttontotoggleCFMandCMMunits.
2. PresstheAreabutton(A)andthenusethe and▲▼buttonstoprogramthearea
value.PresstheREC/Enterbuttontosavetheareavalue.Seethe‘UsefulEquations’
sectionforhelponcalculatingtheareaofaductorotherairway.
3. Forairflowmeasurementstheareaunitsaremeterssquaredorfeetsquared.The
lowerdisplaywillshowm‐2(forCMM)orF‐2(forCFM).
4. Theareasettingrangeis0.001to30.000meterssquaredor0.01to322.92feet
squared.
5. Afterprogrammingthearea,facetheanemometersensorintothewindsourceand
notetheCFMorCMMairvolumereading.

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MIN,MAX,DataRecordingFunction
1. PresstheRecbuttononce.TheRECsymbolwillappearonthedisplay.Thisstartsthe
Min/MaxDataRecordingsession.
2. PressRecagainandtheRECMAXsymbol,alongwiththemaximumvalue,willappearonthe
display.
3. PresstheRecagainandtheRECMINsymbol,alongwiththeminimumvalue,willappearon
thedisplay.
4. Toerase(reset)therecordedMaxorMinvaluespresstheHOLDbuttononce(whileinthe
RecordmodewitheithertheMAXortheMINiconshowing).
5. PressandHoldtheRecbuttonfor2secondstoexittheMin/MaxDataRecordModeandto
returntothenormalmode.RECandMAX/MINiconswilldisappear.
DataHold
PresstheHOLDbuttontofreezethereadinginthedisplay.The'HOLD'iconwillappearonthe
upperright‐handsideofthedisplay.PresstheHOLDbuttonagaintoreturntonormaloperation
(the'HOLD'holdiconwilldisappear).
AutoPowerOFF
Themeterwillautomaticallyturnoffafter10minutesifnokeysarepressedduringthisperiod.
NotethattheAutopowerofffunctionisdisabledintheMax/Minrecordingmode.
BatteryReplacement
WhenthelowbatteryiconappearsorwhenthemeterwillnotswitchONpleasereplacethe
battery.Thebatterycompartmentislocatedonthebackofthemeter,securedbyaPhillipshead
screw.Openthecompartmentandreplacethe9Vbatteryobservingcorrectpolarity.Donot
switchthemeterONuntilthebatterycompartmentissecuredwiththescrew.
Neverdisposeofusedbatteriesorrechargeablebatteriesinhouseholdwaste.
Asconsumers,usersarelegallyrequiredtotakeusedbatteriestoappropriate
collectionsites,theretailstorewherethebatterieswerepurchased,orwherever
batteriesaresold.
Disposal:Donotdisposeofthisinstrumentinhouseholdwaste.Theuserisobligatedtotake
end‐of‐lifedevicestoadesignatedcollectionpointforthedisposalofelectricalandelectronic
equipment.
UsefulEquations
Areaequations:
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Cubicequations:
CFM(ft3/min)=AirVelocity(ft/min)xArea(ft2)
CMM(m3/min)=AirVelocity(m/sec)xArea(m2)x60

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Specifications
MeasurementSpecifications
MeasurementRangeResolutionAccuracy
MPH(Milesperhour)0.9to67.0MPH0.1MPH
3937ft/min:±3%F.S.
>3937ft/min:±4%F.S
km/hr(kilometersperhour)1.4to108.0km/h0.1km/h
Knots(nauticalmilesperhour)0.8to58.3knots0.1knots
m/sec(meterspersecond)0.4to30.0m/s0.1m/s
ft/min(feetperminute)80to5910ft/min1ft/min
CMM54,000CMM0.001CMM
CFM1,908,400CFM0.001CFM
Temperature/Thermistor0to50oC(32to122oF)0.1oF/C±1.2oC(±2.5oF)
Temperature/Thermocouple‐148to2372°F
‐100to1300°C
0.1°F
0.1°C
±(1%+2°F)
±(1%+1°C)
RelativeHumidity10.0to95.0%0.1%±4%RH(from10%to70%RH)
±4%rdg+1.2%RH(>70%RH)
Light(AutoRanging) 0to2,200Lux1Lux
±5%rdg+8digits
1,800to20,000Lux10Lux
0to204.0Fc0.1Fc
170to1,860Fc1Fc
GeneralSpecifications
DisplayDual,MultifunctionLCDdisplay
SensorsRH:Thinfilmcapacitancehumiditysensor
Temperature:Thermistor(oroptionalexternalTypeKThermocouple)
Airsensor:Lowfrictionvanewheel
Light:Photodiodewithcolorcorrection
Min/Max Min/Maxrecallsthehighest/lowestreading
DataHoldDataHoldfreezesthedisplay
Operatingconditions0to50oC(32to122oF)/<80%RH
Powersupply9VoltBattery
Dimensions/WeightInstrument:156x60x33mm(6.1x2.4x1.3”)
Vane:31mm(1.2”)diameter/160g(5.7oz)
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Copyright©2015FLIRSystems,Inc.
Allrightsreservedincludingtherightofreproductioninwholeorinpartinanyform
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