13.2.1
Measured values
Table 8: Measured variables
Number of measured variables
Number of measured variables
CO
2
, SO
2
Table 9: Measuring method
Measuring method
Measuring method
NDIR spectroscopy, NDUV spectroscopy
Table 10: Sample volume
Sample volume
Sample volume
80 ... 120 l/h
Table 11: Measuring ranges
Component
Measuring range
CO
2
0 ... 25% by volume
SO
2
0 ... 100 ppm / 0 ... 500 ppm
Table 12: Measured value characteristics
Measured value characteristics
Measuring precision
< 1% of the respective full scale value
Detection limit
< 0.5% of the respective full scale value
Sensitivity drift
< 2% of the respective full scale value per week
Zero point drift
< 2% of the respective full scale value per week
Reference point drift
< 2% of the respective full scale value per week
Setting time t
90
15 ... 30 s, including sample gas path and gas sampling unit
13.2.2
Ambient conditions
Ambient conditions
Ambient temperature
+5 ... +45 °C
Storage temperature
-20 ... +70 °C
Ambient pressure
900 ... 1100 hPa
Ambient humidity
≤ 90%, non-condensing
Degree of contamination
2
Overvoltage category
2
13.2.3
Sample gas conditions
Table 13: Sample gas characteristics
Sample gas at the sampling point
Property
Process temperature
10 ... 550 °C
Sample gas temperature subassem‐
bly:
•
Sample gas probe
•
Sample gas line
•
Cell
Temperature:
•
Approx. 180 °C
•
Approx. 180 °C
•
Approx. 60 °C
Process pressure
–200 ... +200 hPa relative
Dust load
< 200 mg/m
3
13
TECHNICAL DATA
114
O P E R A T I N G I N S T R U C T I O N S | MARSIC280
8021339/1CHC/V1-1/2021-07 | SICK
Subject to change without notice
