Edwards Signaling 10/2/2018Paintings and other hanging works of art can be protected with surface or recessed-mount wide gap switches.
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Edwards Signaling 9/28/2018This information describes how to achieve dual switching with one magnetic contact and one magnet. DPDT magnetic contacts such as the Sentrol 1087D, 1084D, 2507AD, or 2707AD (see catalog) may be used in place of two contacts or one contact and a floor mat for an annunciator panel.
Edwards Signaling 9/28/2018You can increase the gap distance of a recessed switch in a door about 40% by placing two magnets side-by-side. This is helpful if you need to increase the gap distance but do not have a wide gap switch.
Edwards Signaling 9/28/2018Each sample was selected at random from finished goods inventory. Tests on each contact were run to measure pull in (make), and drop out (break) distances prior to mounting on the 6" wide, 16" long, and 1/2" thick steel plate.
Edwards Signaling 9/28/2018Sentrol recessed contacts can be installed in a variety of positions to accommodate any application. As shown in Figure 1, the switch and magnet can be mounted end-to-end within an imaginary arc around the switch, or parallel to the switch.
Edwards Signaling 9/28/2018It may happen, during installation, that holes are over-drilled, under-drilled, or have an uneven diameter. Oversized holes can occur due to difficulties in drilling, especially in tight quarters or enclosed spaces.
Edwards Signaling 9/28/2018Gun cabinets can be protected like china cabinets on the previous two pages. However, since the glass front to a gun cabinet could be broken, and guns stolen without sounding the alarm, two other methods for protecting guns are provided here.
Edwards Signaling 9/28/2018Valuable china and other collectibles can be protected by arming a china cabinet with either recessed or surface mount magnetic contacts.