8
N93-561-85 Issue 0
© Copyright Protec Fire Detection plc 2009
5.0 Insulation Testing of Cabling Prior to Connection
Before
connecting any external cables to any field device or the Digilite®, tests must be carried out
using a 500V DC insulation tester (‘Megger
TM’
). The readings between each cable core, and each core
and earth should be greater than 10M
Ω
.
Important Notes:
•
Digilite® Fittings or the Digilite® panel must NOT be connected when high voltage insulation tests
are being performed on the cabling, the cabling
must
be completely discharged prior to
connection to any fittings or the Digilite® panel.
•
Equipment connected to the cabling during insulation tests could be damaged with the high
voltages used during the test, invalidating any warranty.
6.0 Installation Procedure
The Digilite® panel circuit boards are housed in a plastic enclosure. When the front is removed from
the panel the main circuit board and the batteries are fully accessible. The panel can still be controlled
even though the front has been removed.
The panel may be surface or flush mounted (no extra bezel required).
The panel must be located internally in an area that is not subject to dampness, extremes of
temperature or physical abuse. The environmental limits are given in section 8.0
1)
Unpacking
After opening the box remove the installation template from the packaging, leaving the
Digilite® panel in the cardboard box for protection.
2)
Preparing the Mounting Position
Use the installation template in conjunction with a spirit level to mark out the fixing locations
for the panel. Drill and plug the mounting holes previously marked.
3)
Removal of the Door
Remove the Digilite® panel from the packaging. Remove the two screw covers from the lower
two corners of the front door and unscrew the two front door fixing screws.
Swing the door upward from the bottom and lift away, see figure 6.0.
Put all removed parts in a safe, dry place.
Figure 6.0 – Removing the door from a Digilite® panel