Extech Instruments EA20 Manual

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EA20-EN V1.8 3/14

Specifications

Function RangeandResolution Accuracy

Humidity 10.0to95.0%RH ±3%RH(at25

C,30to95%RH)

±5%RH(at25

C,10to30%RH)

Temperature‐4to140

F(‐20to60

C) ±1.8

F(±1

DewPoint ‐4to140

F(‐20to60

C) calculated

WetBulb ‐4to140

F(‐20to60

C) calculated

Display MultifunctionLCDwithbargraphandstatusindicators

SensorType Humidity:Precisioncapacitancesensor

Temperature:Thermistor

ResponseTime Humidity:45%to95%<1min;95%to45%<3min.

Temperature:Approx.2secondsfora10

Cchange

SamplingRate 2timespersecond

DataloggingMemory 99sets

OperatingConditions 32to140

F(0to60

C);<95%RHnon‐condensing

StorageConditions 14to140

F(‐10to60

C);<70%RHnon‐condensing

PowerSupply 6x1.5V‘AAA’batterieswithprogrammableautopoweroff(1minuteto59

minutesin7selectabletimes)

BatteryLife Approx.200hours

Dimensions/Weight 5.9x2.8x1.4”(150x72x35mm);8.3oz.(235g)



Maintenance

Cleaningandstorage

1. Themetershouldbecleanedwithadampclothandmilddetergent whennecessary.Donotusesolvents

orabrasives.

2. Storethemeterinanareawithmoderatetemperatureandhumidity(refertotheoperatingandstorage

rangeinthespecificationschartearlierinthismanual).

BatteryReplacement

Whenthebatterypowerfallslow,the‘BT’symbolwillappearontheLCD.Repl acethesix(6)1.5‘AAA’

batteriesbyremovingtherear(center)batterycompartmentscrewandaccessingthebatterycompartment.

Observepolaritywhenplacingthebatteriesinthecompartment.Ensurethatthecompartmentcoveris

securelyfastened

whenfinished.

Warranty does not apply to defects resulting from action of the user such as misuse, improper wiring,

operation outsideof specification,improper maintenanceor repair,or unauthorizedmodification. Extech

specificallydisclaimsanyimpliedwarrantiesormerchantabilityorfitnessforaspecificpurposeandwillnot

beliable for

anydirect, indirect,incidentalor consequentialdamages.  Extech'stotalliability islimited to

repair or replacement of the product. The warrantyset forth above is inclusive and no other warranty,

whetherwrittenororal,isexpressedorimplied.



Reservadostodoslosderechos,incluyendoelderechodereproduccióntotaloparcialencualquiermedio