European Safety Systems Ltd.
Impress House, Mansell Road, Acton, London W3 7QH
www.e2s.com
Tel: +44 (0)208 743 8880
Document No. D199-00-201-IS
Issue 4
07-10-21
Sheet 6 of 7
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 combustible dust applications, the cable entry device and
blanking elements shall be in type of explosion protection and
shall have an IP 6X rating
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 STEx 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 the
enclosure, but in no case more than the size of the conduit or
50mm, whichever is the lesser.
8) Flash Pattern Settings
6.1 Flash Rate Setting
The STExB2 beacons can produce different flash patterns as
shown in Table 2. The flash patterns are selected by operation
of the flash setting DIP switch on the PCBA (See Fig 6).
Figure 6: DIP Switch Location.
Switch
Setting
S1 Mode
00
1Hz (60FPM)
01
1.33Hz (80FPM)
10
1.5Hz (90FPM)
11
Double Flash
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.
Figure 7: Removal of Lens.
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.