Xtralis XAS-2-USProduct Guide Xtralis Pty Ltd
4.3.3 Flow Sensitivity
This setting determines the system's responsiveness in reporting blocked sampling points or broken pipes. The
number of sampling points and fan speed are the main factors to consider for this setting.
The following table shows typical settings for a variety of standard fan speed and hole quantity combinations. Other
speed and hole combinations should be verified by testing during commissioning.
Table4-3: Typical Flow Sensitivity Settings
Sampling
Method
Holes Recommended Fan
Speeds
Flow Sensitivity
Open Area 1 - 2 sample holes per pipe 6 - 9 5
Duct 2 - 3 sample holes 6 - 9 5
Duct 4 - 5 sample holes 6 - 9 7
Duct 5 or more sample holes 6 - 9 9
Notes:
1. Fan speeds must be adjusted to suit specific pipe networks to transport requirements (max 120 seconds).
2. Duct Applications must have inlet and exhaust probes matched for number of holes.
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