E2S GNExB2X05 Series Instruction Manual page 6

Max Ambient Temperature (ºC)
Model
15 20 25 30
GNExB2
ATEX / IECEx / NEC / CEC Approved
X05DC
63 68
X05AC
65
X10DC
64 69
X10AC
ATEX / IECEx Approved
X15DC 74 79
X15AC 74 79
X21DC 95 100 105 110 115 120 125 130 135 140
X21AC 74 79
Table 2: Min. Ratings of Cables & Cable Glands.
Cable Glands
The cable gland entries have an M20 x 1.5 entry thread. Only
use suitably rated and certified cable glands, as per type of
approval, which must be suitable for the type of cable being
used and also meet the requirements of the current
flameproof installation standards (see section 7.1).
Blanking Plugs
When only one cable entry is used the other entries must be
closed with suitably rated and certified blanking plugs as per
type of approval.
Any unused cable entries must be closed with suitably rated
and certified blanking plugs.
Ingress Protection
If a high IP (Ingress Protection) rating is required, then a
suitable sealing washer must be fitted under the cable glands
or blanking plugs.
A minimum ingress protection rating of IP6X must be
maintained for installations in explosive dust atmospheres.
For use in Class I Division II locations, in order to maintain
the db type protection, flameproof conduit seals and/or cable
glands must be used.
Adapters
The GNEx Beacon Range can be supplied with the following
types of adapters:
M20 to ½" NPT
M20 to ¾" NPT
M20 to M25
It is important to note that stopping plugs cannot be fitted
onto adapters, only directly onto the M20 entries.
Any other adapters used must be suitably rated as per the
applicable standards.
If the installation is made using conduit, openings must have
a sealing fitting connected as close as practical to the wall of
European Safety Systems Ltd. Impress House, Mansell Road, Acton, London W3 7QH
Document No. D156-00-201-IS
35 40 45 50 55 60
65 70 75
73 78 83 88 93 98 103 108
70 75 80 85 90 95 100 105
74 79 84 89 94 99 104 109
84 89 94 99 104 109 114 119
84 89 94 99 104 109 114 119
84 89 94 99 104 109 114 119
Issue 4
the enclosure, but in no case more than the size of the
conduit or 50mm, whichever is the lesser.
65 70
8) Flash Pattern Settings
80 85
The GNExB2 beacon can produce different flash patterns as
shown in Table 3. The flash patterns are selected by
operation of the flash setting DIP switch on the PCB, Fig 6.
Table 3: Switch Positions for Flash Patterns
9) End of Line Monitoring (DC Units)
All DC units have a blocking diode fitted in their supply input
lines. An end of line monitoring diode or an end of line
monitoring resistor can be connected across the +ve and –ve
terminals in the flameproof chamber. If an end of line resistor
is used it must have a minimum resistance value of 3k3 ohms
and a minimum wattage of 0.5W or a minimum resistance
value of 500 ohms and a minimum wattage of 2W.
10) Interchangeable & Spare Parts
The beacon lens is interchangeable, contact European
Safety Systems Ltd for a replacement lens available in
various colours.
The guard is an integral part of the protection and must be
reassembled exactly the same way as it was disassembled.
To change the lens, unscrew the M5 socket head screws and
remove the M5 screws, M5 spring & flat washers.
05-10-21
Warning – high-intensity light source. Avoid
looking directly at the light source for
extended periods of time.
Figure 6: DIP Switch Location.
Switch
S1 Mode
Setting
00 1Hz (60FPM)
01 1.33Hz (80FPM)
10 1.5Hz (90FPM)
11 Double Flash
Warning – Hot surfaces. External surfaces
and internal components may be hot after
operation, take care when handling the
equipment.
www.e2s.com Tel: +44 (0)208 743 8880
Sheet 6 of 7