5
Planning
28
Vanderbilt
Seismic Detectors Application Guide
I-200153-1
08.2016
5
Planning
5.1
General Application
It is essential to plan each installation correctly in order to ensure the best protection and the most
reliable performance from the detectors. The following sections give some guidelines on the correct
installation practices to follow and some tips on what conditions to avoid.
It is essential that only Vanderbilt accessories are used to compliment the system. See
Chapter 4
5.2
General Planning Guidelines
The GM7xx range of seismic detectors operate at maximum efficiency on steel or concrete
surfaces. Correct operation and performance of the detectors on other surfaces cannot be
guaranteed.
Verify the layout drawing against the detection parameters of the detectors and accessories to
ensure compliance.
If drawings are not available, perform a physical measure and then verify the detection
parameters of the detectors and accessories to ensure compliance.
For new build concrete vaults, ensure coordination between with the builder to ensure the
accessories are installed as per the instructions. Don’t forget the cable access conduit prior to
the concrete being poured.
If the vault is existing or a new build, perform a visible inspection to identify any weaknesses in
the construction that may impair the transmission of the acoustic signals.
Ensure that all equipment planned to be used is compatible and that performance and/or
approval are not compromised, (refer to section 4.4)
Do not install the detectors on block type brickwork as the mortar joints will impair the acoustic
signals. If in doubt, seek clarification of the structure.
Do not install the detector on materials other than concrete or steel, as the correct operation
and performance of the detectors cannot be guaranteed.
Check that the GM7xx seismic detectors have a direct connection to the protected surface and
that all section paint has been removed, drill template removed, mounting plate installed (if
required).
Determine the ambient noise levels for the protected areas prior to completing the installation.
(Refer to sections 6 & 7 for additional information).
Determine the storage height of the equipment within the protected space prior to final
installation, this may avoid accidental alarms due to contact from shelving and can also assist
with access for maintenance/service purposes.
Determine the environmental conditions for the protected space and ensure that they are within
allowed tolerances.
For vaults, ensure that all fascia of the vault have at least one detector installed.
Ensure that all doors have a detector installed and that any lock protection system is adequate
for the purpose.
Determine if any real attacks can be performed after the installation has been completed as
this may assist with the handover of the system.
Establish the ambient temperature of the protected space and the temperature levels should be
set at +/-10° C above this level. GM730 has a fixed temperature surveillance and the GM760 &
GM775 have selectable temperature surveillance levels.
Refer to sections 4.3 & 4.4 for additional information.
5.3
Planning limitations
Although the Vanderbilt GM7xx series of seismic detectors are designed to provide a high level of
immunity against unwanted alarm sources, it is essential that certain precautions are observed.