13
Installation
switch to
ALARM
, the external siren sounds when the beam
path is interrupted.
Caution: The external siren sounding device must be rated at
12 VDC, 0.5 A or less.
1. Separate about 2 inches of one end of the two-conductor
wire.
2. Use a wire stripper to remove about
1
/
4
inch of insulation
from the end of each conductor, then twist the loose
strands.
3. Use a Phillips screwdriver to loosen the
GND
terminal
screw. Then insert one of the conductors into the hole
under the
GND
terminal and tighten the screw.
4. Insert the other conductor into the hole under the alert’s
N.O
terminal, then tighten the screw.
5. Connect the other end of the wire to the external siren.
6. Cut a 2-inch piece of wire and use a wire stripper to strip
about
1
/
4
inch of insulation from both ends, then twist the
loose strands.
7. Insert one of the wire ends into the hole under the terminal
at the operating point of the alert’s relay (between
N.C
and
N.O
), then tighten the terminal’s screw.
8. Insert the other wire end into the hole under the alert’s pos-
itive (+) OUTPUT 10–18V DC 0.5A terminal (labeled
EXT.DC
), then tighten the terminal’s screw.
