ICAM IFT-P Product Guide
ICAM by Xtralis
4
www.xtralis.com
1.3
Flow Monitoring
The control system monitors for blockages or disconnection of the pipe network by detecting when the air flow
is above or below acceptable flow thresholds. Flow thresholds are dependent on air flows measured during
normalization.
The normalization process enables the detector to learn typical air flow characteristics of the system and sets
these expected flow readings to 100%. A normalization sequence must be performed at installation. The
detector has default high and low limits and associated delay times, which may be changed in the Configure
menu.
Detailed information on how to design and install an effective pipe network can be found in ICAM Pipe
Network Design Guide and ICAM Pipe Network Installation Guide.
1.4
Alarms
The default settings of the four alarm states (Alert, Action, Fire1 and Fire2) are shown in the following table.
Table 1-1: Default Behavior of Alarm States
Level
Latched /
Unlatched
Threshold
Class A/B/C
Delay
Alert
Latched
0.04% obs/m (0.012% obs/ft)
3 secs
Action
Latched
0.06% obs/m (0.018% obs/ft)
3 secs
Fire1
Latched
0.08% obs/m (0.024% obs/ft)
3 secs
Fire2
Latched
0.1% obs/m (0.03% obs/ft)
3 secs
If any alarms are unlatched, all resultant actions (relay contacts and display panel indicators) will clear if and
when the triggering event ceases. If it is latched, all the warning mechanisms are maintained until action is
taken by the user.
