10 Appendix
89
10.2 Technical data of the KS1-DK combination probe
Measuring range:
O
2
: 0...18 vol. % O2
with limitation 0...21 vol. % O
2
COe: 0...1000ppm COe
Measurement accuracy:
O2: ± 10 % of measurement value
No better than ± 0.3 vol. % O
2
CO: ± 25 % of measurement value
No better than +/- 10 ppm in exhaust gases from natural gas
combustion following previous calibration under operating
conditions with a CO reference measurement in the measuring
range 0...100 ppm :. 10 ppm
Probe output voltage:
O
2
electrode: -100mV...+1000mV
Resolution: 0.1mV
CO/H
2
electrode: -50...+950mV
Resolution: 1mV
Error-influencing factors:
Temperature
Other unburned hydrocarbons
Cross-sensitivity:
To SO
2
, NH
3
, NO, propane, aromatic hydrocarbons
Probe internal resistance of ZrO
2
measuring cell in air and 22W
heating power:
15...25 ohms
Permitted fuels:
Residue-free, gaseous hydrocarbons
Light fuel oil
Coal
Wood
Permitted continuous exhaust gas
temperature:
< 450 °C
Life:
≥ 3 years with natural gas
Heating power:
20...25 watts, depending on the version and the measuring gas
temperature
Heating current:
Approx. 1.3 A
Insulation resistance between
heater and probe connection:
> 30 MΩ
Mounting position:
Horizontal to vertical
Protection class:
IP42
Counter flange:
In version standard Æ DN65
In version blow.out device Æ DN85
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