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MAN3037-2
XP95 PRODUCT GUIDE
5.3
Environmental Characteristics:
XP95 ionisation smoke detectors are designed to operate in a wide variety of environments (See Figs 4 to 6).
There are only small effects from temperature, humidity, atmospheric pressure and wind. Detectors are well
protected against electromagnetic interference over a wide frequency range.
The XP95 ionisation detector, like all ionisation detectors, has some sensitivity to air movement (wind). The
extent to which the analogue value will change depends on the wind speed and on the orientation of the
detector relative to the wind direction. Relatively small changes in wind direction can cause significant
changes in analogue value.
For wind speeds up to 1m/s (200ft/min) the change in analogue value will not exceed 5 counts. Continuous
operation in wind speeds greater than 2m/s (400ft/min) is not recommended. However, wind speeds up to
10m/s (2000ft/min) can be tolerated for short periods and will not under any conditions increase the
probability of false alarms.
Figure 4 – Typical Temperature Response – XP95 Ionisation Detector
Figure 5 – Typical Pressure Response – XP95 Ionisation Detector
Figure 6 – Typical Wind Speed Response – XP95 Ionisation Smoke Detector
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