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Beschikbare talen
Beschikbare talen
Cross-Sensitivities Dräger PIR 7000 Type 334
The factory default settings for the LEL values may vary. These parameters must therefore
be checked before commissioning and modified as necessary.
CAS No.
Substance
Acetone
67-64-1
Allyl chloride
107-05-1
Benzene
71-43-2
n-Butane
106-97-8
Isobutane
75-28-5
n-butanol
71-36-3
1-Butene
106-98-9
Chlorobenzene
108-90-7
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
Methyl chloroformate
79-22-1
n-Nonane
111-84-2
n-Octane
111-65-3
2,2,4,6,6-Pentamethylheptane 13475-82-6
n-Pentane
109-66-0
n-propanol
71-23-8
Isopropanol
67-63-0
Propylene
115-07-1
Propylene oxide
75-56-9
Styrene
100-42-5
Toluene
108-88-3
2,2,4-Trimethylpentane
540-84-1
Vinyl acetate
108-05-4
Vinyl chloride
75-01-4
34
NOTICE
1)
GasCode
LEL
[vol.%] according to
NIOSH
IEC
453
2.5
2.5
723
2.9
2.9
260
1.2
1.2
104
1.6
1.4
114
1.6
1.3
304
1,4
1,4
154
1.6
1.6
280
1.3
1.3
732
6.2
6.2
4)
730
13.0
13.0
734
3.4
3.4
744
5.3
5.3
820
3.8
2.3
302
3.3
3.1
552
2.0
2.0
822
3.0
2.6
3)
3)
971
0,7
0,7
106
1.1
1.0
551
3,1
3,1
454
1.4
1.5
591
1,7
1,7
301
6.0
6.0
3)
391
1.6
1.6
476
1.2
1.2
701
8.1
7.6
3)
571
7.5
7.5
109
0.8
0.7
108
1.0
0.8
3)
3)
198
0.5
0.5
105
1.5
1.1
303
2,2
2,2
313
2.0
2.0
153
2.0
2.0
823
2.3
1.9
270
0.9
1.0
261
1.1
1.0
138
1.1
0.7
572
2,6
2,6
722
3.6
3.6
The gas transmitter Dräger PIR 7000 Type 334 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.
Certified
LEL acc. to IEC
reference gas
PTB
RUS
2.5
2.5
Ethylene
3.2
2.9
Ethylene
1.2
1.2
Ethylene
1.4
1.4
Propane
1.5
1.3
Propane
1,4
1,7
Propane
1.5
1.6
Propane
1.3
1.4
Ethylene
4.2
6.2
Ethylene
5)
13.0
13.0
Ethylene
3.1
3.4
Ethylene
4)
5.3
5.3
Ethylene
2.3
2.3
Ethylene
3.1
3.1
Propane
2.0
2.2
Propane
2.6
2.6
Propane
3)
0,7
0,7
Propane
1.0
1.0
Propane
3,1
3,2
Propane
1.5
1.8
Propane
1,7
1,7
Propane
6.0
5.5
Propane
4)
1.8
1.6
Propane
1.2
1.2
Propane
7.6
7.6
Propane
7.5
7.5
Propane
0.7
0.7
Propane
0.8
0.8
Propane
3)
0.5
0.5
Methane
1.1
1.4
Propane
2,1
2,2
Propane
2.0
2.0
Propane
2.0
2.0
Propane
1.9
1.9
Propane
1.0
1.1
Ethylene
1.0
1.1
Propane
1.0
1.0
Methane
2,6
2,6
Propane
3.8
3.6
Ethylene
Display for 50 %LEL in
[vol.%]
%LEL of the reference
2)
gas
2.3
72
2.3
68
2.3
78
1.7
38
1.7
29
1,7
28
1.7
41
2.3
34
2.3
85
2.3
74
2.3
87
2.3
72
2.3
97
1.7
60
1.7
54
1.7
47
1,7
17
1.7
30
1,7
65
1.7
32
1,7
39
1.7
>100
1.7
36
1.7
23
1.7
63
1.7
>100
1.7
22
1.7
27
4.4
63
1.7
40
1,7
37
1.7
39
1.7
40
1.7
62
2.3
64
1.7
28
4.4
64
1,7
13
2.3
16
Response time
3)
t0...t50 / t0...t90
≤ 8 s / ≤ 15 s
≤ 8 s / ≤ 15 s
≤ 8 s / ≤ 15 s
≤ 8 s / ≤ 15 s
≤ 8 s / ≤ 15 s
≤ 20 s / ≤ 56 s
≤ 8 s / ≤ 40 s
≤ 11 s / ≤ 39 s
≤ 8 s / ≤ 15 s
≤ 8 s / ≤ 15 s
≤ 11 s / ≤ 30 s
≤ 8 s / ≤ 15 s
≤ 8 s / ≤ 15 s
≤ 10 s / ≤ 29 s
≤ 8 s / ≤ 15 s
≤ 8 s / ≤ 15 s
≤ 10 s / ≤ 25 s
≤ 8 s / ≤ 15 s
≤ 10 s / ≤ 28 s
≤ 8 s / ≤ 15 s
≤ 11 s / ≤ 25 s
≤ 8 s / ≤ 15 s
≤ 8 s / ≤ 15 s
≤ 10 s / ≤ 31 s
≤ 8 s / ≤ 15 s
≤ 15 s / ≤ 57 s
≤ 8 s / ≤ 15 s
≤ 8 s / ≤ 15 s
≤ 9 s / ≤ 27 s
≤ 8 s / ≤ 15 s
≤ 11 s / ≤ 34 s
≤ 8 s / ≤ 15 s
≤ 8 s / ≤ 15 s
≤ 8 s / ≤ 15 s
≤ 10 s / ≤ 50 s
≤ 8 s / ≤ 15 s
≤ 10 s / ≤ 32 s
≤ 11 s / ≤ 34 s
≤ 8 s / ≤ 31 s
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