15
Installation and Maintenance Instructions
Model G-SND Global Series Sounder
Figure 6 Ex d in/out PCB connections
VOLTAGE
SELECTOR
SWITCH
D8
D2
D1
D4
D3
J1
F1
S1
S2
F2
D7
D5
D6
R1
DC
120
230
AC
T4 T3 T2 T1 SEL EARTH L2 L2 L1 L1
Wiring the Ex d Models
To wire the Ex d flameproof sounder:
1.
Unscrew the M3 hex set screw on the side of the housing one
full turn.
2.
Remove the cover from the housing by turning the cover
counter-clockwise. Three 120-degree spaced reliefs are
provided for a 3/8 inch spanner wrench if needed. If the cover
will not unscrew, back out the set screw a few additional turns.
3.
Loosen the captive Phillips screw retaining the driver/printed
circuit board (PCB).
4.
Slide out the PCB until the terminals clear the housing.
Strip the wire insulation 6.5 mm (0.25 in). Maximum screw
tightening torque is 0.5 N•m (4.5 in-lb).
5.
Follow the instructions starting below for your line voltage
and continue to Step 6 on page 19. Refer to Figure 6 for the
voltage selector switch and page 20 for the tone chart.
