25
Table 2.6 Sensor specifications
Gas type (abbreviation)
Part number
Methane, IR (CH
4
)
Methane, 0-5% vol
17155304-N
17155304-M
c
Properties
Category
Combustible
Combustible
Technology
Infrared
Catalytic bead
DualSense™ capable
No
No
Installation location
Ventis Pro4
None
2
Ventis Pro5
2
2
Operating conditions
Temperature range
a
-20 to +50 °C (-4 to +122 °F)
-20 to +55 °C (-4 to +131 °F)
RH range
a
0−95%
15-95%
Performance
Sensitivity
Measurement range
0−5% vol
5.1-100% vol
0-5% vol
Measurement resolution
.01% vol
0.1% vol
0.01% vol
Accuracy
b
Calibration gas and
concentration
2.5% vol methane
99% vol methane
d
2.5% vol
Accuracy at time and
temperature of calibration
± 5%
± 15%
± 10%
Accuracy over sensor’s
full temperature range
± 10%
± 10%
± 15%
Response Time
T50
15s
15s
7 s
T90
25s
25s
10 s