User Manual

ENFORCER Curtain Sensors
4 SECO-LARM U.S.A., Inc.
 Do not mount where the transmitter or
receiver could be splashed by water or
mud.
 Do not mount where unit could be
suddenly exposed to a bright light,
such as a floodlight or a passing car’s
headlight.
 Do not let sunlight or any direct beam of
light shine directly on the curtain beam
sensor. If unavoidable, mount so the
transmitter, not the receiver, faces the
sun (see Fig. 2).
 Do not mount where animals or other objects could accidentally break the beams.
Choosing a Location, continued:
Fig. 2: Orientation to Sun
The sensor beam frequency can be set at different
frequencies on-site to avoid interference from multiple
curtain sensors nearby. To select between three different
beam frequencies, set the jumper of the transmitter side
and receiver side (see Fig. 3).
Note:
1. If the frequency is changed, power must be cycled on the transmitter and receiver
after the new frequency is selected.
2. Both the transmitter and the receiver of each pair must be set to matching
frequencies to work together correctly.
1. Find a suitable location (see Fig. 1):
a. The transmitter and receiver can be
mounted at any angle as long as they are
parallel to each other and directly facing
each other, and as long as the wires
come out of the same ends of both units
(see Fig. 4).
b. If using multiple curtain sensors, be sure
to set each for a different frequency (see
Selectable 3-Channel Beam Frequency
above).
c. The transmitter and receiver must not be
separated by more than 50 feet indoors
and 25 feet outdoors.
TX
RX
RX
TX
NO
OK*
*Only if unavoidable. Mount so
transmitter, not receiver, faces
the sun.
Selectable 3-Channel Beam Frequency:
Mounting the Curtain Sensor:
Frequency A
Frequency B
Frequency C
Fig. 3:
Jumper
Position
JMP3
{
Fig. 4: Orientation
Note: If the wires will
be running out the end,
place sensors so wires
are at the bottom. If
sensors must be placed
so wires are at top,
seal the opening with
silicone to prevent
water from leaking in.
OK
NO
Terminal
blocks
Terminal
block
Terminal
block