Dräger Polytron 8100 Notice D'utilisation page 40

Technical data
Cross sensitivities for DrägerSensor O
Gas / vapor
acetone
ethane
ethanol
ethylene
ethine
carbon dioxide
carbon monoxide
methane
methanol
propane
hydrogen
NOTICE
i i
The table shows the response of the sensor to other
gases than the target gas (cross sensitivities). The
listed values are typical and are valid for new sensors.
The table does not claim to be complete. Gas mixtures
can be displayed as the sum of all components.
There are no known cross sensitivities against
interfering gases with a concentration up to 100 ppm
(see table for concentrations higher than 1 Vol%).
The influence of O
account (partial pressure measurement).
Increased sensor drift could be caused by high
concentrations of acid gases (> 1 Vol%), which might
reduce the calibration interval. The sensor service life
is reduced depending on the exposure time and the
concentration of the acid gases (e.g. lifetime in
atmospheres containing
hours).
Organic solvents (e.g. acetone, propyl alcohol, etc.)
can penetrate into the plastic parts of the sensor. If the
sensor is exposed to higher concentrations (> 1 Vol%)
over several days, these substances could cause a
sensor drift which might reduce the calibration interval.
However, these will not reduce the sensor service life.
40
(6809720)
2
Chemical symbol
CH COCH
3 3
C H
2 6
C H OH
2 5
C H
2 4
C H
2 2
CO
2
CO
CH
4
CH OH
3
C H
3 8
H
2
displacement is not taken into
2
CO :5000 Vol% CO
2
Gas concentration
1 Vol%
10 Vol%
1 Vol%
5 Vol%
2 Vol%
5 Vol%
1 Vol%
10 Vol%
1 Vol%
5 Vol%
10 Vol%
x
2
Measurement value deviation
in Vol% O2
with dust filter
≤ 0.1
≤ 0.1
≤ 0.1
≤ 0.1
≤ 0.1
≤ 0.1
≤ 0.1
≤ 0.1
≤ 0.1
≤ 0.1
≤ 0.1
Dräger Polytron 8100