Product Guide
VESDA ECO Detector by Xtralis
82
Appendix
A – Gas Types, Ranges & Defaults
17898_05
Appendix A – Gas Types, Ranges & Defaults
Gas Name
Chemical
formula
Measurement
Range
Factory Default Setting
Temperature Limit
Humidity Limit
Recommended
Test Gas
Concentration
Pre-Alarm
Alarm
Low
High
Low
High
Carbon
Monoxide
CO
0-500 ppm
30 ppm
200 ppm
-30 °C
+50 °C
15 %RH
90 %R H
100 ppm
Nitrogen
Dioxide
NO
2
0-10 ppm
1 ppm
2 ppm
-20 °C
+50 °C
15 %RH
90 %RH
5 ppm
Ammonia
NH
3
0-100 ppm
25 ppm
35 ppm
-20 °C
+40 °C
15 %RH
90 %RH
50 ppm
Oxygen
O
2
0-25% v/v
20 % v/v
19.5% v/v
-30 °C
+55 °C
5 %RH
95 %RH
20.9% v/v
Sulphur
Dioxide
SO
2
0-10 ppm
1 ppm
2 ppm
-30 °C
+50 °C
15 %RH
90 %RH
5 ppm
Hydrogen
Sulphide
H
2
S
0-100 ppm
5 ppm
10 ppm
-30 °C
+50 °C
15 %RH
90 %RH
20 ppm
Hydrogen
H
2
0-2000 ppm
500 ppm
1000 ppm
-20 °C
+50 °C
15 %RH
90 %RH
1000 ppm
Hydrogen
H
2
0-100% LFL
25 %LFL
50 %LFL
-20 °C
+50 °C
5 %RH
90 % RH
50 %LFL in Air
Methane
CH
4
0-100% LFL
25 %LFL
50 %LFL
-20 °C
+50 °C
5 %RH
90 % RH
50 %LFL in Air
Propane
C
3
H
8
0-100% LFL
25 %LFL
50 %LFL
-20 °C
+50 °C
5 %RH
90 % RH
50 %LFL in Air
