Trolex Sentro 8 - Page 16

16 TX9165-UM-EN-07
Toxic Gases • Electrochemical Cells - continued
TX6350 .254 .255 .257 .259 .261
Nitrogen
Dioxide
NO
2
Chlorine
CL
2
Oxygen
O
2
Nitric Oxide
NO
Hydrogen
H
2
Sensing
element
Electrochemical Cell
Sensing
range
0 to 20 ppm 0 to 10 ppm 0 to 25% 0 to 50 ppm 0 to 1000 ppm
Linearity ±2% FS ±5% FS ±5% FS ±5% FS ±2% FS
Drift
2%
per month
2%
per month
10%
per year
2%
per month
2%
per month
Repeatability ±2%
Response
time T63%
<20 secs <20 secs N/A <20 secs <70 secs
Operating life 2 years 2 years 1 year 2 years 2 years
Relative
humidity
15 to 90% non-condensing
Operating
temperature
-10 to +40°C
GENERAL
alarm
5 ppm 2.5 ppm 19% (under) 5 ppm 250 ppm
HIGH alarm 10 ppm 5 ppm 23% (over) 20 ppm 500 ppm
STEL & TWA
5 ppm N/A N/A 10 ppm N/A
3 ppm 0.5 N/A 3 ppm N/A
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