French doors and small windows

Application.

Older homes often have windows with small panes and French doors. Small windows have unique properties when they break. The sound output may be low since there is not much glass to break and the glass may pop out of the window frame when hit instead of breaking. Detection in both cases can be difficult.Modern French doors are usually two large panes of glass with false dividers between them. The dividers have little effect from a detection standpoint you do not need to take any special precautions.

Installation.

To protect small windows with an acoustic sensor, use a 5600 ShatterPoint mounted within 4 ft. (1.2 m) of the glass. See Acoustic sensor testing with the 5709C on page6.For more consistent detection, use a GS600 frame-mounted shock sensor. Often several sensors will be needed to protect a frame of multiple windows. Make sure you test the sensor (see Shock sensor testing on page8) and use additional sensors as needed.Minimum glass size for glassbreak sensors is 1 square foot (0.3 x 0.3 m).

Recommended products.

5600, GS600
Figure 14. Small window protection Sensor