Dräger X-am 5000 Gebrauchsanweisung Seite 19

Extract: For details, see the Instructions for Use/data sheets for the sensors used
Measuring principle
Measurement value configuration time t
Measurement value configuration time t
Measuring range
Zero point deviations (DIN EN 45544)
Instrument drift
Warm-up time
Effect of sensor poisons
Hydrogen sulphide H S, 10 ppm
2
Hydrogen sulphides, heavy metals, gases containing
silicone, sulphur or polymerizable substances
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)
1) The Technical Manual and Instructions for Use/data sheets for the sensors used and the PC software CC-Vision for Dräger X-am 5000 can be downloaded on the product page for the X-am 5000 at the
following website: www.draeger.com See also the enclosed Instructions for Use and data sheets for the sensors used.
2) For decreasing concentrations, the adjustment time for nonane is about 50 seconds.
3) For alkanes from methane to nonane, LEL-values in accordance with EN 60079-20-1 For flow speeds of 0 to 6 m/s the deviation of the display can be 5 - 10 % of the measurement value. When calibrating
for propane, the deviation of the display in the range of 80 to 120 kPa can be up to 6 %LEL.
4) Certified for 1 to 100 ppm
5) Certified for 0.4 to 100 ppm
6) Certified for 3 to 500 ppm
7) The instrument responds to most combustible gases and vapours. The sensitivities differ depending on the type of gas. We recommend a calibration using the target gas to be measured. For the range of alkanes,
the sensitivity decreases from methane to nonane.
8) The measuring signals can be affected negatively by ethane, ethene, ethyne, carbon dioxide and hydrogen.
9) The measuring signals can be affected additively by sulphur dioxide, nitrogen dioxide and hydrogen, and negatively by chlorine.
10) The measuring signals can be affected additively by acetylene, hydrogen and nitrogen monoxide.
Ex
Catalytic oxidation
0...90
≤17 seconds
for methane
≤25 seconds
for propane
0...50
≤7 seconds
for methane
≤40 seconds
for nonane
0 to 100 %LEL
for methane 0 to 100 vol. %
– – –
– – –
35 seconds
≤1 %LEL/
8 hours
Possible poisoning
≤5 %LEL
EN 60079-29-1
EN 50271
1)
XXS O XXS H
2
Electrochemical Electrochemical
≤10 seconds ≤15 seconds
≤6 seconds ≤6 seconds
2)
3)
0 to 25 vol. % 0 to 200 ppm
H
2
– – – 2 ppm
≤1 % of the
– – –
measurement
value/month
≤5 minutes ≤5 minutes
– – – – – –
≤0.3 vol. % ≤2 %
of the
measurement
value
7) 8)
EN 50104 EN 45544-1/-2
(measurement of EN 50271
oxygen deficiency
and oxygen surplus)
EN 50271
S XXS H S LC
2 2
Electrochemical Electrochemical
≤18 seconds ≤25 seconds
≤6 seconds ≤6 seconds
0 to 100 ppm 0 to 2000 ppm
4) 5)
S H S
2
0.4 ppm
≤1 % of the ≤1 % of the
measurement measurement
value/month value/month
≤5 minutes ≤5 minutes
– – –
≤2 %
of the
measurement measurement
value
9) 9)
EN 45544-1/-2 EN 45544-1/-2
EN 50271 EN 50271
XXS CO
6)
CO
6 ppm
– – –
≤3 %
of the
value
10)
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