Dräger MQG 0010, Instructions For Use Manual

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19
Extract: For details, see the Instructions for Use/data sheets for the sensors used
1)
Ex XXS O
2
XXS H
2
S XXS H
2
S LC XXS CO
Measuring principle Catalytic oxidation Electrochemical Electrochemical Electrochemical Electrochemical
Measurement value configuration time t
0...90
for methane
for propane
≤
17 seconds
≤
25 seconds
≤
10 seconds
≤
15 seconds
≤
18 seconds
≤
25 seconds
Measurement value configuration time t
0...50
for methane
for nonane
≤
7 seconds
≤
40 seconds
2)
≤
6 seconds
≤
6 seconds
≤
6 seconds
≤
6 seconds
Measuring range
for methane
0 to 100 %LEL
3)
0 to 100 vol. %
0 to 25 vol. % 0 to 200 ppm
H
2
S
4)
0 to 100 ppm
H
2
S
5)
0 to 2000 ppm
CO
6)
Zero point deviations (DIN EN 45544) – – – – – – 2 ppm 0.4 ppm 6 ppm
Instrument drift – – – – – –
≤
1 % of the
measurement
value/month
≤
1 % of the
measurement
value/month
≤
1 % of the
measurement
value/month
Warm-up time 35 seconds
≤
5 minutes
≤
5 minutes
≤
5 minutes
≤
5 minutes
Effect of sensor poisons
Hydrogen sulphide H
2
S, 10 ppm
Hydrogen sulphides, heavy metals, gases containing
silicone, sulphur or polymerizable substances
≤
1 %LEL/
8 hours
Possible poisoning
– – – – – – – – – – – –
Linearity error
≤
5 %LEL
≤
0.3 vol. %
≤
2 %
of the
measurement
value
≤
2 %
of the
measurement
value
≤
3 %
of the
measurement
value
Standards
(Measuring function for explosion protection and
measurement of oxygen deficiency and surplus as well as
toxic gases, DEKRA EXAM, Essen, Germany:
BVS 10 ATEX E 080 X
3)
, PFG 10 G 001 X)
EN 60079-29-1
7)
EN 50271
EN 50104
8)
(measurement of
oxygen deficiency
and oxygen surplus)
EN 50271
EN 45544-1/-2
9)
EN 50271
EN 45544-1/-2
9)
EN 50271
EN 45544-1/-2
10)
EN 50271
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.