Vaisala Optimus OPT100 - Alerts Page; Figure 18 Alerts Page with Active Gas Caution Alert; Table 10 Data Point Selection Criteria

• At least 5 reliable measurement points must exist in the previous 24 hours. Reliability
criteria are the same as for gas alert functionality.
• At least one of the following conditions is true:
• Concentration of all triangle 1 gases is higher than OPT100 accuracy as listed in Table
10 (page 40)
• At least one of the triangle 1 gases is above the limit based on IEC 60599 as listed in
Table 10 (page 40)
Table 10 Data point selection criteria
Gas OPT100 accuracy specification
in ppm
Limits based on IEC 60599
Acetylene(C
2
H
2
) 2 4
Methane (CH
4
) 10 30
Ethane (C
2
H
6
) 10 30
Ethylene (C
2
H
4
) 10 30
Hydrogen (H
2
) 25 50
Data points are original measurements, not oset values.
3.1.5 Alerts page
B
2
1
C
A
Figure 18 Alerts page with active gas caution alert
OPT100 User Guide M211858EN-U
40