Dräger X-am 5000 Gebrauchsanweisung Seite 29

Excerpt: For details, see instructions for use / data sheets for the sensors used
Measuring principle
Measured value response time t
0...90
Measured value response time t
0...50
Measuring range
Zero point deviations (DIN EN 45544)
7)
Capture range
Instrument drift
Warm-up time
Effect of sensor poisons
Hydrogen sulphide H S, 10 ppm
2
hydrocarbons, heavy metals, and
substances containing silicone,
sulphur or polymerisation
Linearity error
Standards
(Measuring function for explosion
protection and measurement of oxygen
deficiency and surplus as well as toxic
gases, DEKRA EXAM, Essen, Germany:
3)
BVS 10 ATEX E 080 X ,
PFG 10 G 001 X)
9)
Cross sensitivities
Ex XXS O
2
catalytic Electrochemical
oxidation
10 seconds
17 seconds for
methane
25 seconds for
propane
6 seconds
7 seconds for
methane
40 seconds for
2)
nonane
3)
0 to 100 %LEL 0 to 25 vol. %
0 to 100 vol. % for
methane
– – – – – –
7) 7)
– – – – – –
5 minutes
35 seconds
1 %LEL/
– – –
8 hours
Possible poisoning
5 %LEL 0.3 vol. %
8)
EN 60079-29-1 EN 50104
EN 50271 (measurement of
oxygen deficiency
and oxygen surplus)
EN 50271
10)
exist exist
1)
XXS H S XXS H S LC
2 2
Electrochemical Electrochemical
15 seconds 18 seconds
6 seconds 6 seconds
0 to 200 ppm 0 to 100 ppm H S
2
4) 5)
H S
2
2 ppm 0.4 ppm
7) 7)
+/- 2 ppm +/- 0.4 ppm
1 % of measured 1 % of measured
value / month value / month
5 minutes 5 minutes
– – – – – –
2 % 2 %
of the measured of the measured
value value
EN 45544-1/-2 EN 45544-1/-2
EN 50271 EN 50271
11) 11)
exist exist
XXS CO XXS CO-LC
Electrochemical Electrochemical
25 seconds 25 seconds
12 seconds 12 seconds
0 to 2000 ppm CO 0 to 2000 ppm CO
6) 6)
6 ppm 1 ppm
7) 7)
+/- 6 ppm +/-1 ppm
1 % of measured 1 % of measured
value / month value / month
5 minutes 5 minutes
– – – – – –
3 % 2 %
of the measured of the measured
value value
EN 45544-1/-2 EN 45544-1/-2
EN 50271 EN 50271
12) 12)
exist exist
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