Dräger X-am 5600 Gebrauchsanweisung Seite 25

DrägerSensor
Measuring principle
Meauserement value configuration time t
for methane
for propane
Measurement value configuration time t
for methane
for propane
Measuring range
Lower limit of measuring range
(EN 45544)
Zero error (EN 45544)
Instrument drift
Warm-up time
Effect of Sensor poisons, hydrogen sulphide
H S, 10 ppm: halogenated hydrocarbons, heavy
2
metals, substances containing silicone or sul-
phur or polymerisable substances:
Linearity error
Standards
(Measuring function for explosion protection and
measurement of oxygen deficiency and oxygen
surplus as well as toxic gases,
DEKRA EXAM GmbH, Essen, Germany:
BVS 10 ATEX E 080X, PFG 10 G 001 X
7)
Cross sensitivities
1) 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.
2) Certified for 3 to 500 ppm.
3) For methane, propane and ethylene.
4) Certified for 0.01 to 5.00 vol.-% CO .
2
5) The measuring signals can be affected additively through acetylene, hydrogen and nitrate monoxide.
6) For methane, propane and nonane, each with 0-100 %LEL.
7) A table of the cross sensitivities is contained in the Instructions for Use or the data sheet of the respective sensor.
XXS CO
electrochemical
≤ 25 seconds
0...90
≤ 6 seconds
0...50
0 to 2000 ppm CO
3 ppm
6 ppm
≤ 1 % of the measured
value/month
≤ 5 minutes
– – –
≤ 3 % of the
measured value
5)
EN 45544-1
EN 45544-2
EN 50271
exist
DUAL IR Ex
IR Ex
infrared
≤ 20 seconds
≤ 40 seconds
≤ 10 seconds
≤ 12 seconds
0 to 100 %LEL
2)
or
0 to 100 vol.-%
– – –
– – –
– – –
≤ 3 minutes
– – –
≤ 4 %LEL
EN 60079-29-1
EN 50271
exist
1) DUAL IR CO
IR CO
1)
infrared
≤ 31 seconds
≤ 15 seconds
0 to 5 vol.-%
3)
0.01 vol.-%
0.02 vol.-%
– – –
≤ 3 minutes
– – –
≤ 10 % of the
measured value
EN 45544-1
1) 6)
EN 45544-2
EN 50271
exist
2
2
4)
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