10
INSTALLATION AND OPERATION MANUAL
25-16383-B August 2019 www.eaton.com
4. Installation
3.2 Detector positioning in atrium
If the detector is to be placed in an atrium, or near glass/polished surfaces, the
prism(s) should be offset from the central line of sight (approximately 300mm), and
angled back to the beam detector. This can be either on the vertical or horizontal
axis. This will reduce the amount of spurious returned signal from the glass/polished
surfaces. The reflected signal from the prism(s) will be returned to the detector in the
normal way.
4. Installation
Pre-installation at Ground Level.
Confirm that all parts have been supplied as listed in the parts list. See page 11.
Select the required alarm threshold using switches 3 and 4 (See fig. 4. for switch
configuration settings). The factory default setting is 35% this should be adequate
for most environments, if the Detector is to be installed into an exceptionally dirty
environment change the threshold to 50%.
The Detector Head Assembly is now ready for installation. If switches 3 and 4
require resetting after installation, a power down reset is required (entering into
Alignment Mode can also be used as a reset).
4.1 Detector head assembly installation
Remove the outer cover before installation; this is only to prevent the cover
becoming dislodged during handling.
Do not mount on plasterboard or cladded walls as these surfaces do, and will move.
Determine the position of the Head Assembly, which must be mounted on a solid
structure between 0.5 and 0.6 metres below the ceiling, and no closer than
0.5 metres to an adjacent wall or structure. Ensure that there is a clear line of sight
to the proposed position of the prism, which is to be mounted on a solid structure
between 5 and 100 metres directly opposite the Detector (range dependent
on model).
Using the template provided mark and install all 4 fixing points to the structure.
The rear mounting plate of the Detector Head Assembly is provided with 4 keyhole
slotted apertures to allow for easy installation onto the 4 fixing points.
Replace the outer cover.
Terminate the field wiring. See section 8.
Offset Prism(s) position and beam path
Normal Prism(s) position and
central line of sight
Detector
head
Plan View
