Technical specifications
SYSTRONIK
14
EUROLYZER® ST / STe
Table 7: Device specifications – options
Parameter
Value
NO Measurement
Measuring range
0-2000 ppm
Accuracy
5 ppm (to 50 ppm)
5 % of measured value
Resolution
1 ppm
Sensor
Electrochemical measuring cell
Response time (T90) 60 seconds
4.1
Calculation formulae (extract)
Calculation of the CO
2
value
CO
2
= CO
2 max
* (1 -
21
O
2
) in %
CO
2max
Max. CO
2
value (fuel-specific) in % by volume
O
2
Measured oxygen concentration in %
21
Oxygen concentration of the air in % by volume
Calculation of the flue gas loss
qA = (TG - TL) * (
2
2
O
21
A
−
+ B) in %
TG
Flue gas temperature in °F or °C
TL
Combustion air temperature in °F or °C
A2, B Fuel-specific factors
Calculation of the excess air value Lambda
Lambda =
2
max
2
CO
CO
=
2
O
21
21
−
