Electrochemical VOC sensor - VOC-A4

PERFORMANCE

Sensitivity

nA/ppm in 2ppm CO

230 to 410

Response time

t₉₀ (s) from zero to 2ppm CO

< 30

Zero current

nA in zero air at 20℃

± 200

Noise*

±2 standard deviations (ppb equivalent)

20

Range

ppm limit of performance warranty

190

Linearity

ppm CO error at full scale, linear at zero, 10ppm CO

± 1.5

Overgas limit

maximum ppm for stable response to gas pulse

1000

LIFETIME

Zero drift

ppb equivalent change/year in lab air

±500

Sensitivity drift

% change/year in lab air, monthly test

< 15

Operating life

months until 50% original signal (24 month warranted)

> 36

ENVIRONMENTAL

Sensitivity @ -20℃(% output @ -20°C/output @ 20℃) @ 2ppm CO

50 to 80

Sensitivity @ 50℃(% output @ 50°C/output @ 20℃) @ 2ppm CO

100 to 120

Zero @ -20℃

nA change from 20℃

± 20

Zero @ 50℃

nA change from 20℃

± 100