139
Table 48 - IRMA CO
2
sensor
– Accuracy I
Exactitude / accuracy of measurements (under standard
conditions)
Type of Gas
Range (AX+)
Accuracy
CO
2
0 to 15
15 to 25
±(0,2 vol% + 2% of reading)
Not specified
Note: Concentration of gases expressed in units of percentage volume.
Table 49 - IRMA CO
2
sensor - Accuracy II
Exactitude / accuracy of measurements (under all conditions)
Type of Gas
Accuracy
CO
2
± (0.3 vol% + 4% of reading)
Note: The accuracy specification is valid for any specified environmental condition, except as described in
the table below with "Effects of Gas and Steam Interference".
Table 50 - IRMA CO
2
sensor - Effects of gas and vapor interference
Effects of gas and vapor interference
Gases or Steam
Gas Level
CO
2
N
2
O
60 vol%
---
(1 and 2)
HAL
4 vol%
---
(1)
ENF, ISO, SEV
5 vol%
+8% of the read measurement.
(3)
DES
15 vol%
+12% of the read measurement.
(3)
Xe (Xenon)
80 vol%
-10% of the read measurement.
(3)
He (Helium)
50 vol%
-6% of the read measurement.
(3)
Measured dose inhaler
propellant
Not designed for use with a measured-dose propellant inhaler.
C
2
H
5
OH (Ethanol)
0,3 vol%
---
(1)
C
3
H
7
OH (Isopropanol)
0,5 vol%
---
(1)
CH
3
COCH
3
(Acetone)
1 vol%
---
(1)
CH
4
(Methane)
3 vol%
---
(1)
CO (Carbon Monoxide)
1 vol%
---
(1)
NO (Nitrogen
Monoxide)
0,02 vol%
---
(1)
O
2
100 vol%
---
(1 and 2)
(1) Despicable interference. Effects of interference do not change the values in the "Accuracy of Measurements
(under all conditions)" table above.
(2) For sensors that are not measuring N
2
O and / or O
2
, concentrations must be entered manually by the user.
