European Safety Systems Ltd.
Impress House, Mansell Road, Acton, London W3 7QH
www.e2s.com
Tel: +44 (0)208 743 8880
Document No. D156-00-401-IS
Issue 4
28-11-22
Sheet 6 of 7
8) Flash Pattern Settings
The GNExB2 beacon can produce different flash patterns as
shown in Table 4. The flash patterns are selected by
operation of the flash setting DIP switch on the PCB, Fig 6.
Figure 6: DIP Switch Location.
Switch
Setting
(123456)
S1 Mode
(for AC & DC)
S2 Mode
(DC only)
S3 Mode
(DC only)
000000
Steady
High Power
Flashing
1Hz
Flashing
Triple Strike
000001
Steady
Low Power
Flashing
1Hz
Flashing
Triple Strike
100000
Flashing
1Hz
Flashing
Double Strike
Flashing
Triple Strike
101000
Flashing
1.5Hz
Flashing
2Hz
Flashing
Double Strike
010000
Flashing
2Hz
Flashing
Triple Strike
Flashing
Triple Strike
110000
Flashing
Double Strike
Steady
High Power
Flashing
Triple Strike
001000
Flashing
Triple Strike
Flashing
2Hz
Flashing
Double Strike
Table 4: Switch Positions for Flash Patterns
8.1. Synchronised Operation
All GNExB2LD2 beacons that are connected to the same
supply line will have a synchronised flash rate at one flash
every second. To ensure that the units will be synchronised
check that the DIP switch is set to1 Hz (see Figure 6).
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 lenses are 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 and remove the M5 socket
head screws, M5 spring & flat washers.
Figure 7: Removal of Lens.
Remove the guard and replace the lens.
Figure 8: Changing of Lens.
Fit the guard back on to the lens and moulding, align the
holes of the guard, lens and casting. To reattach the lens, the
fixings MUST be in the order shown in figure 9.
Warning – Hot surfaces. External surfaces
and internal components may be hot after
operation, take care when handling the
equipment.
Warning – high-intensity light source. Avoid
looking directly at the light source for
extended periods of time.
