Dräger PIR 7000 Notice D'utilisation page 33

Substance CAS No.
o-Xylene 95-47-6
1) The factors used to convert % vol. into % LEL are stated according to the NIOSH Pocket Guide for LEL category 1, according to IEC 60079-20 for LEL category 2, according to Brandes / Möller - Safety Characteristic Data, Volume 1:
Flammable Liquids and Gases (ISBN 3-89701-745-8) for LEL category 3 and according to GOST R 51330.19-99 for LEL category 4. The LEL values according to LEL category 5 "LKLV" (Lowest Known LEL Value) always represent the
lowest of the four other LEL values.
2) Based on LEL values according to IEC, typical tolerances: ±5 % LEL
3) No factors for converting % vol. into % LEL for this substance are stated in the reference quoted. The value stated represents (as a minimum value of all other conversion factors) the value shown in the characteristic.
4) No factors for converting % vol. into % LEL for this substance are stated in the reference quoted. The stated value represents the LEL value according to IEC.
Cross-Sensitivities Dräger PIR 7000 Type 340
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
n-Butane 106-97-8
Isobutane 75-28-5
n-butanol 71-36-3
1-Butene 106-98-9
n-Butyl acetate 123-86-4
Cyclohexane 110-82-7
1,2-Dichloroethane 107-06-2
Dichloromethane 75-09-2
1,2-Dichloropropane 78-87-5
1,3-Dichloro-1-propene 542-75-6
Epichlorohydrin 106-89-8
Ethanol 64-17-5
Ethyl acetate 141-78-6
Ethylene oxide 75-21-8
Hexamethyldisiloxane 107-46-0
n-Hexane 110-54-3
Methyl acetate 79-20-9
Methyl ethyl ketone (MEK) 78-93-3
Methyl methacrylate 80-62-6
Methanol 67-56-1
1-Methoxy-2-propanol 107-98-2
Methyl isobutyl ketone 108-10-1
Methyl chloride 74-87-3
1)
GasCode LEL [vol.%] according to
NIOSH
265 0.9
NOTICE
GasCode
NIOSH
453 2.5
723 2.9
104 1.6
114 1.6
304 1,4
154 1.6
554 1.7
186 1.3
732 6.2
730 13.0
734 3.4
744 5.3
820 3.8
302 3.3
552 2.0
822 3.0
3)
971 0,7
106 1.1
551 3,1
454 1.4
591 1,7
301 6.0
391 1.6
476 1.2
701 8.1
IEC PTB RUS
1.0 1.0 1.0
The gas transmitter Dräger PIR 7000 Type 340 measures the concentration of many
hydrocarbons. It is not specific for the substances which are stored with their characteristics.
Various substance-specific sensitivities must be taken into account when specifying cross-
sensitivities.
As an example, typical values for some types of hydrocarbons are listed below.
1)
LEL [vol.%] according to
IEC PTB RUS
2.5 2.5 2.5
2.9 3.2 2.9
1.4 1.4 1.4
1.3 1.5 1.3
1,4 1,4 1,7
1.6 1.5 1.6
1.2 1.2 1.3
1.0 1.0 1.2
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
3) 3)
0,7 0,7 0,7
1.0 1.0 1.0
3,1 3,1 3,2
1.5 1.5 1.8
1,7 1,7 1,7
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
Certified LEL acc. to IEC Display for 50 %LEL in
reference gas [vol.%] %LEL of the reference
Ethylene 2.3
Certified LEL acc. to Display for 50 %LEL in
reference gas IEC [vol.%] %LEL of the reference
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
Propane 1.7
Propane 1,7
Propane 1.7
Propane 1,7
Propane 1.7
Propan 1,7
Propane 1.7
Propane 1.7
Propane 1.7
Propane 1.7
2)
gas
95
2)
gas
9
6
54
46
50
28
25
38
11
5
12
9
7
61
16
7
14
54
21
18
17
82
56
28
13
33