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Table 2.6 Sensor specifications
Gas type (abbreviation)
Part number
Ammonia (NH
3
)
Carbon Dioxide/LEL (Propane), IR
(CO
2
/LEL)
17155306-6
17155304-U
c
Properties
Category
Toxic
Toxic/Combustible
Technology
Electrochemical
Infrared
DualSense™ capable
No
No
Installation location
Ventis Pro4
None
None
Ventis Pro5
3 or 4
2
Operating conditions
Temperature range
a
-20 to +40 °C (-4 to +104 °F)
-20 to +50 °C (-4 to +122 °F)
RH range
a
15-95%
0-95%
Performance
CO
2
LEL
Sensitivity
Measurement range
0−500 ppm
0-5% vol
0-100% LEL
Measurement resolution
1 ppm
0.01% vol
0.01% LEL
Accuracy
b
Calibration gas and
concentration
50 ppm NH
3
2.5% vol CO
2
25% LEL (Propane)
Accuracy at time and
temperature of calibration
± 15% (0-100 ppm)
0 to 25% (101−500 ppm)
+10% or 0.1%
+5%
Accuracy over sensor’s full
temperature range
± 15%
+15%
+15%
Response Time
T50
30 s
17 s
17 s
T90
84 s
32 s
35 s