4.6 GMXP3 & GMXP3Z lock protection system
Combine the GMXP3 and GMXP3Z lock protection systems with a GM7xx seismic detector to
monitor safe and strong room doors with protruding key holes.
When used with the lock protection system, the detector reports any unauthorised movement of the
lock protection plate and detects any break-in attempts on the door of the vault or safe.
The swivel plate, which covers the keyhole when the door is locked, is linked to a micro-switch.
This switch opens when the swivel plate is moved from protecting the keyhole and generates an
alarm signal.
There are a number of accessories for the lock protection system to cater for the different clear-
ance distances required between the swivel plate and the protruding key hole.
Figure 4-14: GMXP3 monitoring position
Figure 4-14 shows the door in the locked state with the system armed. The GMXP3 is covering the
keyhole.
The expanded section in Figure 4-14 shows the system in the unarmed state with the swivel arm of
the GMXP3 moved to provide access to the keyhole.
The swivel arm of the GMXP3 is not electrically restricted and therefore is moveable irre-
spective of the armed status of the system. Take required precautions to prevent un-
wanted activations.
Refer to installation sheet for the GMXP3 for details of the accessories required for the
swivel arm clearance distance.
4.7 GMAS6 movable mounting kit
The GMAS6 movable mounting kit is used in conjunction with seismic detectors on safe and strong
room doors with flush-fitting keyholes.
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