Extech Instruments AN320 Manual

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AN320-en-GB_V1.2 11/14

SET

HOLD

MAX/MIN

U/mode

AVG

▲

L/mode

▼

U/mode

AVG

▲

U/mode

AVG

▲

L/mode

▼

BriefKeypadDescription



PressmomentarilytoswitchthemeterONorOFF.Pressandholdthisbuttonfor2

secondstoenterorexittheSetupmode(refertoSetupmodesectionfordetails).

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o Pressmomentarilytofreezethedisplayedreading(HOLDiconswitchesON);press

againmomentarilytoexittheHOLDmode(HOLDiconswitchesOFF)

o Pressandholdfor2secondstodisplaytheMIN(minimum)reading;pressandhold

againtodisplaytheMAX(maximum)reading;Pressandholdathirdtimetoexit

o ThisbuttonisalsousedintheAVERAGEmode(forrecordingreadingsoneatatime

orfora‘timed’recordingsession)andintheSETUPmode(forconfiguringthe

meter).PleasereviewtheAVERAGE

andSETUPmodesectionsfordetails



Pressmomentarilytotogglebetweenppm(CO

),humidity,andairvelocityreadings.

Pressandholdfor2secondstoaccesstheMulti‐PointAverageandTimedAverage

modes(theAVGiconswitchesON).Detailedinstructionsforthesemodesareprovided

laterinthisguide.IntheSetupmodepresstoselectacategoryortoincreasea

value

(refertoSetupmodelaterinthisguide)



Presstotogglethelowerdisplaybetweenairtemperature,airvolume,wetbulb

temperature,anddewpointtemperaturereadings;AlsousedintheMulti‐Point

Average,TimedAverage,andSetupmodes;refertotheAVERAGEandSETUPmodes

sectionslaterinthisguide



 

+ WiththemeterswitchedOFF,pressandholdthesetwobuttonstodisable

AutoPowerOFF.DetailedAUTOPOWEROFF(Sleepmode)instructionsare

providedlaterinthisguide







++ Pressall3buttonssimultaneouslytoentertheCalibrationmode.

Calibrationinstructionsareprovidedindetaillaterinthisguide

