Extech Instruments AN320 Manual

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AN320-en-GB_V1.2 11/14

Specifications

AirVelocity Ranges Resolution Accuracy

m/s(meterspersec) 0.2–30m/s 0.01m/s ±(1.5%rdg+0.3m/s)

fpm(feetperminute) 40–5900fpm 1fpm ±(1.5%rdg+59fpm)

RelativeHumidity Range Resolution Accuracy

RH 0.1%‐99.9%RH 0.1RH ±3%RH(10‐90%RH)

±5%RH(<10%or>90%)

AirFlow Ranges Resolution AreaRange

CMM(cubicmeters/min) 0‐99999m

/min

0.1upto9999.9

then1.0

0to99999cm



CFM(cubicft/min) 0‐99999ft

/min

0.1upto9999.9

then1.0

0to99999in



Temperature Ranges Resolution Accuracy

C

AirandWetBulb:

‐20to60

C(‐4to140

F)

DewPoint:

‐5to60

C(23to140

F)

0.1

F)

±0.6°C(‐20to50°C)

±1.2°C(51to60°C)

±1.1°F(‐5to122°F)

±2.2°F(123to140°F)



Range Resolution Accuracy

PPM(partspermillion)

0–9999ppm

(readingsover5000are

notspecified)

1ppm

±(30ppm+5%ofrdg)

from0to5000ppm