Dräger PIR 7000 Instrucciones De Uso página 29

Dräger PIR 7000 Type 334 cross sensitivities
The factory default settings for the LEL values may vary. These parameters must therefore
be checked before commissioning and modified as necessary.
Substance CAS no.
Acetone 67-64-1
Allyl chloride 107-05-1
Benzene 71-43-2
n-butane 106-97-8
i-butane 75-28-5
1.2-dichloroethane 107-06-2
Dichlormethane 75-09-2
1.2-dichlorpropane 78-87-5
1.3-dichlor-1-propene 542-75-6
Epichlorhydrin 106-89-8
Ethanol 64-17-5
Ethyl acetate 141-78-6
Ethylene oxide 75-21-8
n-hexane 110-54-3
Methyl ethyl ketone (MEK) 78-93-3
Methanol 67-56-1
1-methoxy-2-propanol 107-98-2
Methyl-i-butyl ketone 108-10-1
Methyl chloride 74-87-3
n-nonane 111-84-2
n-octane 111-65-3
n-pentane 109-66-0
i-propane 67-63-0
Propylene 115-07-1
Propylene oxide 75-56-9
Styrene 100-42-5
Toluene 108-88-3
o-xylene 95-47-6
1) The conversion factors for vol. % to %LEL are are based on the NIOSH Pocket Guide for LEL category 1, IEC 60079-20 for LEL category 2, Brandes / Möller - Technical Safety Parameters, Volume 1: Flammable Liquids and Gases
(ISBN 3-89701-745-8) for LEL category 3 and GOST R 51330.19-99 for LEL category 4. The LEL values based on LEL category 5 LKLV (Lowest Known LEL Value) always represent the minimum of the four other LEL values.
2) Relative to LEL values according to IEC, typical tolerance: ±5 %LEL.
3) There is no conversion factor from vol. % to %LEL for this substance in the listed reference. The specified value represents the value shown in the parameter (as minimum value of all other conversion factors).
4) There is no conversion factor from vol. % to %LEL for this substance in the listed reference. The specified value represents the LEL value according to IEC.
NOTICE
GasCode LEL
NIOSH
453 2,5
723 2,9
260 1,2
104 1,6
114 1,6
732 6,2
730 13,0
734 3,4
744 5,3
820 3,8
302 3,3
552 2,0
822 3,0
106 1,1
454 1,4
301 6,0
391 1,6
476 1,2
701 8,1
109 0,8
108 1,0
105 1,5
313 2,0
153 2,0
823 2,3
270 0,9
261 1,1
265 0,9
The Dräger PIR 7000 Type 334 gas transmitter measures the concentration of many hydrocarbons.
It is not specific for the substances that are saved at the factory with their characteristics. Different
substance-specific sensitivities must be taken into account for specifying cross-sensitivities.
Typical values for some hydrocarbons are given below as examples.
1)
[vol. %] as per
IEC PTB RUS
2,5 2,5 2,5
2,9 3,2 2,9
1,2 1,2 1,2
1,4 1,4 1,4
1,3 1,5 1,3
6,2 4,2 6,2
3) 4)
13,0 13,0 13.0
3,4 3,1 3,4
4)
5,3 5,3 5,3
2,3 2,3 2,3
3,1 3,1 3,1
2,0 2,0 2,2
2,6 2,6 2,6
1,0 1,0 1,0
1,5 1,5 1,8
6,0 6,0 5,5
3) 4)
1,6 1,8 1,6
1,2 1,2 1,2
7,6 7,6 7,6
0,7 0,7 0,7
0,8 0,8 0,8
1,1 1,1 1,4
2,0 2,0 2,0
2,0 2,0 2,0
1,9 1,9 1,9
1,0 1,0 1,1
1,0 1,0 1,1
1,0 1,0 1,0
Recommended LEL asper IEC
category gas [vol. %]
of the category gas
Ethylene 2,3
Ethylene 2,3
Ethylene 2,3
Propane 1,7
Propane 1,7
Ethylene 2,3
Ethylene 2,3
Ethylene 2,3
Ethylene 2,3
Ethylene 2,3
Propane 1,7
Propane 1,7
Propane 1,7
Propane 1,7
Propane 1,7
Propane 1,7
Propane 1,7
Propane 1,7
Propane 1,7
Propane 1,7
Propane 1,7
Propane 1,7
Propane 1,7
Propane 1,7
Propane 1,7
Ethylene 2,3
Propane 1,7
Ethylene 2,3
Display for 50 %LEL
to %LEL
2)
72
68
78
38
29
85
74
87
72
97
54
54
47
30
32
>100
36
23
63
22
27
40
39
40
62
64
28
95
29