84
│ 9 Appendix
Methane CH
4
, propane C
3
H
8
(Measuring application)
Type
infrared sensor (IR)
Use
PM 580/550
Measuring range
0 – 100 % vol.
Resolution
0 – 9.9 % vol.:
0.1 % vol.
10 – 100 % vol.: 1 % vol.
Response times
– CH
4
: t
50
< 13 s t
90
< 23 s
– C
3
H
8
: t
50
< 15 s t
90
< 28 s
Warm-up time
< 120 s
Temperature range
-20 – 40 ºC
Measuring error
– CH
4
:
±3 % of the measured value
– C
3
H
8
:
±5 % of the measured value
Interference
all hydrocarbons
Humidity
5 – 95 % r.h., non-condensing
short term:
0 % r.h.
Lifetime
24 months (60 months expected)
Test gases
– zero point:
clean air
– CH
4
:
100 % vol.
– C
3
H
8
:
100 % vol.
setting ranges:
– CH
4
:
50 – 100 % vol.
– C
3
H
8
:
50 – 100 % vol.
Methane CH
4
(Structure application)
Type
infrared sensor (IR)
Use
PM 580
Measuring range
0 – 100 % vol.
Resolution
0 – 9.9 % vol.:
0.1 % vol.
10 – 100 % vol.: 1 % vol.
Response times
t
50
< 13 s
t
90
< 23 s
Warm-up time
< 120 s
Temperature range
-20 – 40 ºC
Measuring error
±3 % of the measured value
Interference
all hydrocarbons
Humidity
5 – 95 % r.h., non-condensing
short term:
0 % r.h.
Lifetime
24 months (60 months expected)
Test gases
– zero point:
clean air
– CH
4
:
100 % vol.
setting ranges:
– CH
4
:
50 – 100 % vol.
