Extech Instruments 42275 User manual

Type
User manual

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Extech Instruments 42275 is a versatile temperature and humidity datalogging system designed to monitor and record environmental conditions in various settings. With its wide temperature range (-40 to 85°C) and high accuracy (±0.6°C), it can be used for applications such as greenhouse monitoring, food transport, museum climate control, and HVAC system analysis. The device's ability to measure relative humidity (0.0 to 99.9%) makes it suitable for humidity-sensitive environments.

Extech Instruments 42275 is a versatile temperature and humidity datalogging system designed to monitor and record environmental conditions in various settings. With its wide temperature range (-40 to 85°C) and high accuracy (±0.6°C), it can be used for applications such as greenhouse monitoring, food transport, museum climate control, and HVAC system analysis. The device's ability to measure relative humidity (0.0 to 99.9%) makes it suitable for humidity-sensitive environments.

42270-en-GB_v3.2 11/16
USERMANUAL
Model42270Temperature
&HumidityDatalogger
AdditionalUserManualTranslationsavailableatwww.extech.com
Introduction
Model42270:TemperatureandHumidityDataloggingModule
Model42275:42270module,Dockingstation,SoftwareCD
This Datalogger can be used to monitor the temperature of
greenhouses,warehouses,foodtransports,aircraftcabins,refrigerated
trucks, containers, museums, and HVAC equipment. The Model 42270
recordsRelativeHumidityreadingsinadditiontotemperaturereadings.
Programming and data retrieval instructions are included on the
SoftwareCDlocatedinthe42275kit
oronwww.Extech.com.
Description
1. Mountinghole
2. StatusLEDs(RecordandAlarm)
3. LCDdisplay
Displays
LCDDisplay
REC: Displayedwhileloggingreadings.
HIandLOW: DisplayedwhentheHighorLowAlarmlimitisexceeded.
RH%: RelativeHumidity
CorF: Temperatureunits.
COMM: AppearswhenDataloggeriscommunicatingwithaPC.
RecordingStatusIndication
BoththeREDstatusLEDandthedisplayindicator‘REC’
willflashevery5
secondsifthesamplingrateissetto5secondsorhigher.Ifthesampling
rateissetlowerthan5seconds,theindicatorswillflashevery1,2,3,or4
secondsasprogrammed.
ALARMStatusIndication
BoththeYELLOWstatusLEDandthedisplay
indicator‘ALM’willflash
whentherecordedvalueishigherthantheuserprogrammedHighAlarm
valueorlowerthantheLowAlarmvalue.TheAlarmstatusLEDandthe
‘ALM’displayindicatorflashevery5secondsifthesamplingrateis
programmedfor5secondsorhigher.Ifthesamplingrateissetlower
than5seconds,theindicatorswillflashevery1,2,3,or4secondsas
programmed.
LowBatteryIndication
Whenthelithiumbatteryvoltagenearsthecriticaloperatinglevelthe
LCDdisplays‘LO’.Toreplacethebattery,refertotheBattery
Replacementsectionof
thismanual.
Specifications
Frontpanelstatus LEDsTwo(2):RECORDandALARM
Temperaturerange‐40to85°C(40to185°F)
Temperatureresolution0.1°upto99.9°;from100°to185°
Temperatureaccuracy ±0.6°C(1.2°F)from‐20to50°C(4to122°F)
±1.2°C(2.4°F)allotherranges
RHrange&accuracy
0.0to99.9%RelativeHumidity;Accuracy:±3%
DataloggerMemory 16,000temperaturereadings
(8,000temperature&8,000RHreadings)
Samplingrate Programmablefrom1to7200seconds(2hours)
Powersupply 3.6V½‘AA’lithiumbattery(SAFTLS14250)
BatteryLife 1year:5secondsamplerateinsleepmode
3.8months:24hourrateinnonsleepmode
LowbatteryIndicator Displayshows‘LO’
Dimensions 76.2x57.2x22.3mm(3x2.3x0.88")
BatteryReplacement
Whenlowbatteryicon(‘LO’)appears,replacetheLithiumCR2battery.
1. OpenDataloggerbyfirstremovingthefour(4)rearPhillipsscrews.
2. CarefullypryofftherearoftheDatalogger.
3. ThecylindricallithiumbatteryislocatedonbottomofPCBboard.
4. Replacethebattery,observingpolarity.
5.
AssembletheDataloggerhousing.
Neverdisposeofusedbatteriesorrechargeablebatteriesinhousehold
waste.
Asconsumers,usersarelegallyrequiredtotakeusedbatteriestoappropriate
collectionsites,theretailstorewherethebatterieswerepurchased,or
whereverbatteriesaresold.
Disposal:Donotdisposeofthisinstrumentinhouseholdwaste.Theuseris
obligatedtotakeendoflifedevicestoadesignatedcollectionpointforthe
disposalofelectricalandelectronicequipment.
Copyright©20142016FLIRSystems,Inc.
Allrightsreservedincludingtherightofreproductioninwholeorinpartinanyform
ISO9001Certified
www.extech.com
NOTE:Thedataloggerdisplaywillnotswitchonuntilactivated
bysoftware.
NOTE:This dataloggercannotbeusedwithoutthesoftware
anddockingstationincludedinthe42275kit.
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Extech Instruments 42275 User manual

Type
User manual
This manual is also suitable for

Extech Instruments 42275 is a versatile temperature and humidity datalogging system designed to monitor and record environmental conditions in various settings. With its wide temperature range (-40 to 85°C) and high accuracy (±0.6°C), it can be used for applications such as greenhouse monitoring, food transport, museum climate control, and HVAC system analysis. The device's ability to measure relative humidity (0.0 to 99.9%) makes it suitable for humidity-sensitive environments.

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