Rooms with cleaning crews

Application.

Often the perimeter loop of the security system is armed when the cleaning crews are in a building. If acoustic sensors are armed, they will be listening to all sounds, including those made by night cleaning crews. Acoustic sensors are most likely to false alarm to multiple sounds. The cleaning crews produce a combination of sounds from vacuums, floor polishers, and clattering garbage cans, all of which combine to cause false alarms for some sensors in some applications.

Installation.

The 5150, 5600, and GS600 shock sensors provide the best false alarm immunity for a building when it is occupied. However, multiple shock sensors can be economically impractical for applications with large numbers of windows and may not be an option in applications where appearance is important.When multiple shock sensors will not work for your application, use the 5885 ShatterPro Plus acoustic sensor that combines a passive infrared sensor with a glassbreak sensor ( Figure22 ). When an occupant enters the field of view of the PIR, the glassbreak sensor is disabled for 70 seconds. This prevents false alarms due to loud noises such as vacuums or floor buffers. The 5885 makes 24-hour acoustic applications possible.

Recommended products.

5150, 5600, GS600, 5885
Figure 22. Cleaning crew protection Sensor