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16. SENSOR CROSS-SENSITIVITY DATA
H
S SureCell Cross Sensitivity Data
2
Gas Type
Concentration
Applied ( ppm )
Carbon Monoxide
50
Sulfur Dioxide
2
Nitrogen Dioxide
3
Nitric Oxide
25
Chlorine
0.5
Hydrogen
100
Ethylene
100
Carbon Dioxide
5000
CO SureCell Cross Sensitivity Data
Gas Type
Concentration
Applied ( ppm )
Hydrogen Sulfide
25
Sulfur Dioxide
50
Nitrogen Dioxide
800
Nitric Oxide
50
Chlorine
2
Hydrogen
100
Ethylene
100
Ammonia
100
20
Reading ( ppm H
S )
2
0
0
0
0
0
0
0
0
Reading ( ppm CO )
0
0.5
20
8
0
20
85
0
O
Cross Sensitivity Data
2
Gas Type
Concentration Applied
Hydrogen
100%
Methane
100%
Nitrogen Dioxide
25 ppm
17. ACCURACY STATEMENT
To achieve optimal accuracy the Impulse XP should be periodically supplied
with a known concentration test gas, and if the readings are outside of 15%
of the applied gas concentration, a Span Calibration should be performed,
under conditions of standard temperature (15°C to 25°C), humidity and
pressure.
Poisons should not affect the accuracy of the Impulse XP but certain
compounds can block the gas access port of the sensor, such as silicone oils,
giving a lower than expected reading.
Reading ( %v/v O
)
2
-9%
0
0
21
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