Vaisala CARBOCAP GMT220 SERIES Guide de l'utilisateur télécharger pdf (Page 20)

USER'S GUIDE_______________________________________________________________________

18 ___________________________________________________________________ M010022EN-C

CHAPTER 7

TECHNICAL DATA

Technical specifications

Measuring range

GMT221 0...2% CO

, 0...3% CO

0...5% CO

, 0...10% CO

0...20% CO

GMT222 0...2000 ppm, 0...3000 ppm,

0...5000 ppm, 0...7000 ppm,

0...10 000 ppm

Accuracy at 25°C against certified factory references

GMT221 <±[0.02% CO

+ 2% of reading]

GMT222 <±[20 ppm CO

+ 2% of reading]

(including repeatability and calibration uncertainty)

Non-linearity <±0.5 %FS

Temperature dependence

(typically) -0.1 %FS / °C (When temperature

rises, the output decreases, default

25 °C (77 °F))

Pressure dependence (typically) +0.15 % of reading/hPa (When

pressure rises, the output increases,

default 1013 hPa (1 atm))

Long-term stability <

±5 %FS / 2 years

Response time (63%) 20 seconds (GMT221)

30 seconds (GMT222)

Operating conditions

Operating temperature range -20…+60 °C

Humidity range 0 - 100 %RH (non-condensing)

General

Analog outputs 0 - 20 mA or 4 - 20 mA and

0 - 10 V

Resolution of analog outputs 0.03 %FS

1 2 ... 15 16 17 18 19 20 21 22 23 24 25 26 27 28

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Vaisala CARBOCAP GMT220 SERIES Guide de l'utilisateur Page 20