18
Installation and Maintenance Instructions
Model G-STR Global Series Strobe Beacon
Wiring the Ex de Models
CIRCUIT BOARD DAMAGE: The DC units are polarity sensitive,
and MAY BE DAMAGED by incorrect electrical hookup. When
connecting the DC strobe unit to the voltage supply lines,
POLARITY MUST BE OBSERVED. In addition, damage will result
if the voltage rating of the particular model is exceeded by more
than 10 percent.
To wire the Ex de beacon:
1.
Unscrew the four M4 socket-head cap screws and remove the
terminal box cover.
2.
Strip the wire insulation 8 mm to 9 mm (0.33 in).
NOTE:
When using more than one single or multiple strand lead, the
connection on either side of any terminal must be joined in a suitable
manner, e.g. two conductors into a single insulated crimped bootlace
ferrule.
24 Vdc Model
a.
See Figure 12. Connect the positive (+) power source wire to
the terminal block pole marked
L1
/
+
.
Figure 12 Connections for DC or AC Ex de beacons
Aud+
L1/+
L2/-
L3/Alt+
Aud-
Aud+
L1/+ L2/-
L3/Alt+
Aud-
A
A
b.
Connect the negative (
▬
) power source wire to the terminal
block pole marked
L2/-
.
