Wiring the Ex de Models
CIRCUIT BOARD DAMAGE: The DC sounders are polarity
sensitive, and MAY BE DAMAGED by incorrect electrical
hookup. When connecting the DC sounder 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 models:
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).
When using more than one single or multiple strand
NOTE:
lead, the connection into either side of any terminal must be
joined in a suitable manner, e.g. two conductors into a single
insulated crimped bootlace ferrule.
3.
Follow the instructions starting below for your line voltage
and continue to Step 4 on page 26. Refer to Figure 10 on page
16 for the voltage selector switch and page 21 for the tone
chart.
Figure 12 Connections for DC or AC Ex d e sounder
Model G-SND Global Series Sounder
Installation and Maintenance Instructions
L1/+
L2/-
Alt01
L1/+
L2/-
Alt01
Alt02
Alt03
Alt04
Alt02
Alt03
Alt04
23