2
Xenon beacon Xb12
TM138 February 2023 www.eaton.com
Xenon beacon XB12
English
60±1
60±1
FIXING HOLES ø11.5±1
2 POSITIONS
OPTIONAL GUARD
ENTRY
‘R’
30±1
ø242±2
45±1
172.5±2
275.5±2
307±3
6±1
M8 X 11±1 DEEP
DIRECT MOUNTING
HOLES
2 POSITIONS
60±1
60±1
280±2 250±1
CRS
ø202±2
ENTRY
‘L’
4.0 Maintenance
During the working life of the unit, it should require little
or no maintenance. GRP will resist attack by most acids,
alkalis and chemicals and is as resistant to concentrated
acids and alkalis as most metal products.
However, if abnormal or unusual environmental conditions
occur due to plant damage or accident etc., then visual
inspection is recommended.
If the unit requires cleaning, then only clean exterior with
a damp cloth to avoid electro-static charge build up.
Replacement of the xenon tube (see below) can be
carried out by competent site personnel. Other repairs
should be undertaken by returning the unit to MEDC or by
an authorised repairer of Ex equipment.
If a unit fault should occur, then the unit can be repaired
by MEDC. All parts of the unit are replaceable.
If you acquired a significant quantity of units, then it
is recommended that spares are also made available.
Please discuss your requirements with the Technical Sales
Engineers at MEDC.
Removing/replacing xenon tube
CAUTION: Before removing the cover assembly,
ensure that the power to the unit is isolated.
ote:
N
these units each contain two separate xenon tubes
which should both be replaced at the same time.
Unscrew and remove the 6 off M8 (6.0mm A/F hexagon
key). Keep in a safe, accessible location as they are
non-captive.
Twist the cover assembly gently clockwise and anti-
clockwise, whilst pulling it away from the base. Remove
to gain access to the interior.
Unscrew and remove the three M4 nuts holding the
circuit board to the cover pillars. Keep in a safe accessible
location.
Lift the electronics assembly away from the support
pillars, thus exposing the xenon tube. Remove the old tube
by unscrewing the terminal block fixings. The replacement
tube can now be fitted (see xenon tube installation sheet,
which is supplied with the replacement tubes).
Replace the electronics assembly onto the support pillars
and secure using the three off M4 nuts. Ensure the
retaining strap is fitted to one of the electronics assembly
mounting points during re-assembly.
Carefully replace the cover assembly back onto the base,
avoiding damage to the mating surfaces. Replace the 6 off
M8 screws (6.0mm A/F hexagon key) into the holes in the
cover assembly and tighten evenly. Ensure the O-ring is
seated correctly on the cover during re-assembly. Ensure
the required maximum gap of 0.2mm is maintained
between the cover and the base once assembled.
