MultiXplo / MultiTox
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NOSP15759-Rev 10
Measured at 50 % LEL of the considered gas
In % full scale
On the range: -10°C to +40°C.
(In years) Expected values based on “typical” site operating conditions without poison or
corrosive compounds.
Lifetime can significantly vary (better or worse) depending on real site conditions.
Measure is available but full performances may require longer time. (See Chapter 2).
As soon as a gas or vapour is flammable, it is may be sensed by the combustible gas
detector.
Sensitivity (regarding LEL range) and the response time depend on the compound. Basically,
as the molecule size increase, the response time increase and the sensitivity decrease.
Table below gives some examples of cross sensitivity:
Detector
CH
4
H
2
C
4
H
10
Injected gas
CH
4
H
2
C
4
H
10
CH
4
H
2
C
4
H
10
CH
4
H
2
C
4
H
10
Cross sensitivity*
1
0.95
1.7
1.06
1
1.7
0.57
0.54
1
τ
(0-90%) (sec)
<15
<10
<20
<15
<10
<20
<15
<10
<20
If
CH
4
(50% LEL) is injected on a H2 detector, the concentration displayed will be 47.2%
(50/1.06)*
For external probe versions, temperature range is limited to -20 / +60 °C
Under conditions of natural diffusion and available on any of the outputs of the device
(HART, 4-20mA, ...).
Summary of Contents for DM-TT6-K
Page 9: ...MultiXplo MultiTox Page 9 60 NOSP15759 Rev 10 Figure 1 Layout Drawing Congestion see Figure 2...
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Page 56: ...MultiXplo MultiTox Page 56 60 NOSP15759 Rev 10 10 CONFORMITY CERTIFICATE...
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