_______________________________________________________________________________________________________________________________
European Safety Systems Ltd.
Impress House, Mansell Road, Acton, London W3 7QH [email protected] Tel: +44 (0)208 743 8880
www.e2s.com Fax: +44 (0)208 740 4200
Document No. D191-00-401-IS Issue 1 03-06-2019 Sheet 5 of 6
Fig. 8 Dip Switch
1=ON; 0=OFF
Example shown:
100000 = Flashing 1Hz
(Default setting)
9.2
Line Monitoring
On the D2xB1X unit, DC reverse line monitoring can be used
if required.
All DC beacons have a blocking diode fitted in their supply
input lines. An end of line monitoring resistor can be
connected across the +ve and
–ve terminals in the explosion
proof enclosure. If an end of line resistor is used it must have
the following values:
Minimum resistance 3K3 Ohms
Minimum Power 0.5W
Minimum resistance 500 Ohms
Minimum Power 2.0W
The resistor must be connected directly across the +ve and
-ve terminals as shown in the following drawing. Form the
resistor legs as shown in Fig. 7a, fit the resistor across the
two terminals, as shown in Fig. 7b.
Fig. 7a End of Line Resistor Forming
Fig. 7b End of Line Resistor Placement
10) Settings
10.1 Flash Rate Setting
The D1xB2LD2 beacon can produce different flash patterns
as shown in Table 1. The flash patterns are selected by
operation of the flash setting DIP switch on the PCB, Fig 8.
Switch
Setting
S1 Mode
S2 Mode
S3 Mode
(123456)
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
Fig. 8 DIP Switch location
11) Earthing
The unit has an external and an internal earth terminal,
(please see fig 9).
Internal earthing connections should be made to the internal
Earth terminal in the base of the housing using a ring crimped
terminal to secure the earth conductor under the earth clamp.
The earth conductor should be at least equal in size and
rating to the incoming power conductors.
External earthing connections should be made to the M5
earth stud, using a ring crimp terminal to secure the earth
conductor to the earth stud. The external earth conductor
should be at least 4mm
”
in size.
Fig. 9: Internal & External Earth Locations
End of Line
Resistor
Warning
– high-intensity light source. Avoid
looking directly at the light source for
extended periods of time.
External Earth
Stud
Internal Earth
Terminal
