10. Effective operating radius
The specified operating radius applies to an attack with an oxygen
lance. If attacked with a mechanical tool (e.g. a drill) the value
may be as much as three times higher. The specified operating
radius is a guideline which is heavily influenced by the
characteristics of the material and the type of construction.
11. Shock sensitivity
Shock sensitivity defines how the detector responds to individual
strikes to the substructure of the detector. It is only possible to set
the shock sensitivity for the mode and effective radius
independently in USER MODE with the LSNi/LSN control panel.
Mode
Effective
radius
Concrete
5m*
Concrete
4m.
Concrete
2.5m.
Steel
2m.
Steel
1.5m.
Steel
1m*
LWS
2m.
LWS
1.5m.
*Modes not available in GM570LSN compatibility mode
*Availability of these options depends on the ability of the control
panel to identify the detector as a GM775LSNi. Some control
panels may identify the GM775LSNi as a GM570LSN.
11.1. Function test
The LSNi/LSN control panel can trigger a function test in
conjunction with an installed GMXS1 internal test transmitter. The
GMXS1 is activated through the control panel using a seismic test
function. An alarm is activated if the detector is working correctly
(activation time <3s).
11.2. Automatic self-test
The LSNi/LSN control panel can set the time interval
(hour/day/week) for automatic self-test. The control panel
identifies any unsuccessful self-test.
The detector must be fitted with a GMXS1 internal test transmitter.
12. Commissioning
1.
Initialize the LSNi/LSN bus
2.
Wait 60 seconds.
The detector is now operational.
3.
Verify the correct radius and material type have been
selected by the control panel.
Using a multimeter (Ri ≥ 20 kΩ) at terminal 1 (0 V) and TP (Fig. 1,
item D) to monitor for the analogue integration signal:
Quiescent level
Integration start
Alarm threshold (w/o load)
12.1. Functional checks
Functional checks can be performed as follows:
With the cover removed, scratch the metal case of the
detector with a screw driver.
Activate the GMXS1 internal test transmitter through the
control panel using a seismic test function.
Apply the required input to activate the GMXS5 external test
transmitter, if provided.
Simulate an attack on the protected space.
Carefully replace the cover and secure it in place.
A6V10276498_b
Shock
Example of use
sensitivity*
High
Vault
High
Vault, modular vault
High
Vault, modular vault
Armor-plated safe,
Medium
vault door
Armor-plated safe,
Medium
vault door, ATM
Low
ATM, safe, vault door
Systems of armour
High
plating with synthetic /
composite materials
Systems of armour
High
plating with synthetic /
composite materials
0 V
1 V
3 V
13. Service
The function of the detector and its mounting should be checked
at least once a year as follows:
Functionally test the detector as detailed in section 12.1.
Verify the settings of the detector by the control panel menu
options.
Check the mounting of the detector to ensure that the
detector is securely attached.
Check that there is a direct connection between the detector
and the mounting surface. Paint, varnish, dirt, silicone or
similar materials will impede the acoustics.
Refer to local approvals for guidance on this matter.
14. Modular vaults
The following principles must be strictly observed when using
seismic detectors on modular vaults made from steel or concrete:
Thickness from 100 to 400mm
Width up to 1000mm
Length up to 6500mm
Modules with detector arrangement
1 2 3 4 5 1 2 3 4 5 . . . .
Corner joints between walls
seamlessly welded
1.
One detector for a maximum of 5 wall modules. The detector
must be mounted on the middle module.
2.
In addition to being bolted together, all of the joints between
the modules must be welded every 400 − 500mm with a 30 −
40mm seam.
3.
Corner joints between wall modules must be seamlessly
welded if the coverage area is to extend beyond the corners.
4.
In the case of wall modules equipped with detectors, the
immediately adjoining floor and/or ceiling modules can be
included in the coverage area if the corresponding butt joints
are seamlessly welded.
5.
Where building vaults use modules of varying thickness, the
butt joints must be seamlessly welded.
6.
Avoid mounting detectors on modules to which guide rails for
cassette transport lifts, ventilators or other mechanical
equipment are attached.
7.
Always equip modules which have a pay-in/withdrawal slot
with a detector. This will also be able to monitor the adjacent
modules.
8.
All doors must always be equipped with a detector.
9.
Programming:
On maximum 5 modules at a
maximum height of 6.5m
On maximum 3 modules at a
maximum height of 4m
On doors
15. Technical data
Dimensions
Supply voltage (LSNi/LSN)
5
Always 1 detector on
doors
Recommended setting
Concrete 4m
Concrete 2.5m
Steel 2m
89mm x 89mm x 23mm
Vmax. = 33 V DC