Parameters Sensor Measuring range Resolution Accuracy*
T90 response
time
Long-life O2 Electrochemical From 0% to 21% 0.1% vol. ±0.2% vol. 30 s
CO
(with H2
compensation)
Electrochemical From 0 to 8000 ppm 1 ppm From 0 to 200 ppm: ±10 ppm
From 201 to 2000 ppm: ±5% of the measured value
From 2001 to 8000 ppm: ±10% of the measured value
30 s
NO Electrochemical From 0 to 5000 ppm 1 ppm From 0 to 100 ppm: ±5 ppm.
From 101 to 5000 ppm: ±5% of the measured value
30 s
Low range NO Electrochemical From 0 to 500 ppm 0.1 ppm From 0 to 40 ppm: ±2 ppm
From 41 to 500 ppm: ±5% of the measured value
30 s
NOx Calculated** From 0 to 5155 ppm 0.1 ppm or
1 ppm***
– –
NO2 Electrochemical From 0 to 1000 ppm 1 ppm From 0 to 100 ppm: ±5 ppm.
From 101 to 1000 ppm: ±5% of the measured value
80 s
SO2 Electrochemical From 0 to 5000 ppm 1 ppm From 0 to 100 ppm: ±5 ppm.
From 101 to 5000 ppm: ±5% of the measured value
80 s
CO2 Calculated** From 0 to 99% vol 0.1% vol – –
CH4 Semiconductor From 0 to 10000 ppm
From 0 to 1% Vol
From 0 to 20%LEL
1 ppm
0.0001% Vol
0.002%LEL
±20% of full scale 40 s
Flue gas temperature K thermocouple From -100 to +1250°C 0.1°C ±0.4% of the measured value or ±1.1°C 45 s
Ambient temperature Internal NTC From -20 to +120°C 0.1°C ±0.5°C
Ambient temperature Pt100 (1/3 DIN
external probe)
From -50 to +250°C 0.1°C ±0.3% of the measured value ±0.25°C 30 s
Dew point
temperature
Calculated** From 0 to +99°Ctd 0.1°C – –
DHW temperature TcK (external probe) From -200 to +1300°C 0.1°C ±0.4% of the measured value or ±1.1°C –
Draft Piezoelectric From -10 to +10 Pa
From -1000 to +1000 Pa
0.1 Pa
1 Pa
From -100 to -10 Pa: ±2 Pa
From -10 to +10 Pa: ±0.5 Pa
From +10 to +100 Pa: ±2 Pa
Above: ±2% of the measured value
–
Differential pressure Piezoelectric From -20 000
to +20 000 Pa
1 Pa From -20 000 to -751 Pa: ±0.5% of the measured value ±4.5 Pa
From 750 to -61 Pa: ±0.9% of the measured value ±1.5 Pa
From -60 to 60 Pa: ±2 Pa
From 61 to 750 Pa: ±0.9% of the measured value ±1.5 Pa
From 751 to 20 000 Pa: ±0.5% of the measured value ±4.5 Pa
–
Losses Calculated** From to 100% 0.1% – –
Flue gas velocity Calculated** From to 99.9 m/s 0.1 m/s – –
Excess air (λ) Calculated** From 1 to 9.99 0.01 – –
Lower efficiency (ηs) Calculated** From 0 to 100% 0.1% – –
Higher efficiency (ηt)
(condensation)
Calculated** From 0 to 120% 0.1% – –
Opacity index External instrument From 0 to 9 – –