Dräger SE Ex HT M, Instructions For Use Manual, Page: 50 / 60

Measuring Function for Explosion Protection
50
Measuring Function for Explosion Protection
Only for sensing head Polytron SE Ex PR M and SE Ex HT M
The sensing heads Polytron SE Ex PR M and SE Ex HT M meet the essential health and safety requirements of the directive
94/9/EC in respect to their measuring function for explosion protection by compliance with the standards EN 61 779-1 and
EN 61 779-4 in conjunction with the central controllers Polytron SE Ex (6th supplement to EC-Type Examination Certificate DMT
97 ATEX E 006X) and the central controller REGARD (4th supplement to EC-Type Examination Certificate DMT 02 ATEX G
002X) for the following gases and vapours:
Gas or vapour CAS-No. Chemical
Symbol
LEL
in
%V/V
Sensor
current
in mA
Span gas
concentra-
tion Propane
in % V/V
Reading when
Propane
applied in
%LEL
Response time
t
0...90
in seconds
Acetone 67-64-1 CH
3
COCH
3
2.5 240 0.99 57 ... 61
≤
44
Ammonia 7664-41-7 NH
3
15.4 240 0.51 19 ... 23
≤
22
Gasoline 065/095 --- HC-mixtures 1.1 240 0.51 40 ... 45
≤
47
Benzene 71-43-2 C
6
H
6
1.2 240 0.51 40 ... 61
≤
39
2-Butanone (MEK) 78-93-3 CH
3
COC
2
H
5
1.5 240 0.51 47 ... 50
≤
44
n-Butane 106-97-8 C
4
H
10
1.4 240
≤
37
n-Butyl acetate 123-86-4 CH
3
COOC
4
H
10
1.2 240 0.51 50 ... 55
≤
65
Diethylether 60-29-7 C
2
H
5
OC
2
H
5
1.7 240 0.51 37 ... 43
≤
44
Dimethyl ether 115-10-6 CH
3
OCH
3
2.7 240
≤
32
Ethanol 64-17-5 C
2
H
5
OH 3.1 240 0.99 54 ... 59
≤
37
Ethene (Ethylene) 74-85-1 C
2
H
4
2.4 240
≤
29
Ethyl acetate 141-78-6 CH
3
COOC
2
H
5
2.0 240 0.99 70 ... 76
≤
40
n-Hexane 110-54-3 C
6
H
14
1.0 240 0.99 80 ... 91
≤
50
Methanol 67-56-1 CH
3
OH 6.0 240 0.99 45 ... 49
≤
38
n-Nonane 111-84-2 C
9
H
20
0.7 240 0.51 57 ... 58
≤
82
n-Octane 111-65-9 C
8
H
18
0.8 240 0.51 51 ... 60
≤
67
n-Pentane 109-66-0 C
5
H
12
1.4 240 1.05 67 ... 68
≤
32
i-Propanol 67-63-0 (CH
3
)
2
CHOH 2.0 240 0.51 37 ... 40
≤
38
Propane 74-98-6 C
3
H
8
1.7 240
≤
21 / 33
Toluene 108-88-3 C
6
H
5
CH
3
1.1 240 0.51 41 ... 62
≤
47
Hydrogen 1333-74-0 H
2
4.0 240
≤
11
Acetylene 74-86-2 C
2
H
2
2.3 270 0.49 33 ... 42
≤
20
1,3-Butadiene 106-99-0 CH
2
=CH-CH=CH
2
1.4 270 0.51 37 ... 51
≤
49
Cyclopropane 75-19-4 C
3
H
6
2.4 270 0.99 44 ... 55
≤
27
Ethylene oxide 75-21-8 C
2
H
4
O 2.6 270 0.51 36 ... 41
≤
38
Methane 74-82-8 CH
4
4.4 270
≤
15 / 23
Propylene oxide 75-56-9 C
3
H
6
O 1.9 270 0.49 41 ... 44
≤
38
Propene (Propylene) 115-07-1 C
3
H
6
1.8 270 0.51 33 ... 49
≤
35