INSTALLATION
Follow the Do’s and Don’ts of Xandem TMD
DO
:
●
Do test using a TMD demo kit before permanent installation.
The TMD demo kit is powered
by batteries and enables fast testing in various environments. Testing with the demo kit will save
you time and help you avoid installation problems.
●
Do place all nodes within range of each other.
Detection performance is maximized when all
nodes are within wireless transmission distance of each other.
●
Do place the PU within range of all nodes.
The PU must be able to communicate with all nodes
in the network. In some cases, this may require placing the PU near the area being sensed by the
nodes and running a longer signal wire or wireless repeater from the PU to the panel.
●
Do place nodes 0.51.0 meters off the ground.
Nodes should be placed at approximately torso
level of a human body so that detection performance is optimal.
●
Do mount nodes securely on sturdy structures.
If a node falls, shifts, or moves, it may lead to a
false trigger. Make sure to secure the nodes firmly to something that will not move.
●
Do place nodes on the interior of the detection area walls.
When the area to be sensed is
surrounded by walls, install the nodes on the interior side of the walls to maximize detection and
minimize false triggering.
●
Do test perimeter sensitivity.
Walk or move vehicles around the outside of the area to make sure
the threshold is not set so low that motion outside the perimeter causes false triggering.
●
Do use battery packs during configuration and testing.
It is recommended to test an area using
portable battery power before hardwiring an installation. This will ensure that the detection is
successful before committing to a wired installation.
●
Do set sensitivity thresholds as high as possible.
To avoid false alarms, try setting the threshold
at a high value upon installation. Test the system, and if it’s not sensitive enough, decrease the
threshold until it is. It’s better to approach the optimum threshold from higher thresholds, and
work your way to lower values to avoid false triggering.
DON’T
:
●
Don’t install nodes on the ground or against metal.
This will severely limit sensing
performance and communication range of your TMD system. Place nodes at least .5 meters from
the ground and do not mount to metal surfaces.
●
Don’t install the sensing system around trees or foliage.
Moving branches and leaves can cause
false triggering if they are within or near the network area. This is especially true when the area is
open (not enclosed by dense walls like brick, concrete, masonry).
●
Don’t install nodes too high from the ground.
Placing nodes too high will raise the sensing
plane and reduce sensitivity. EXCEPTION: If deploying the nodes in a three dimensional
configuration, this rule can be ignored as long as links from node to node cross through the area to
be sensed.
●
Don’t place nodes around or near abrupt water flows.
Appliances such as dishwashers, toilets,
ice makers, and washing machines may cause false triggering if they abruptly drain or load water.
Large water pipes with abrupt streams may also cause a false trigger unless they are made of metal
Copyright © 2015 XANDEM
TMD User Guide (Rev C.2) Page 7
