1. Verify that the emitter and the receiver are pointed squarely at each other. Use a straight edge (for example, a level)
to determine the direction the sensor is facing. The sensor face must be perpendicular to the optical axis.
Straight Edge
Straight Edge
Indicator LEDs
All OFF
Note:
At power-up, all indicators are tested (flash), then the Scan Code is displayed.
2. Turn on the power to the emitter and receiver. If the Channel #1 beam is not aligned, the Status and Alignment
indicator 1 will be red, the Run mode indicator will be off, and the 7-segment display sequentially indicates
CH1
. All
the Alignment indicators (2-n) will be off.
Indicator LEDs
Run Mode Indicator (Yellow)
Status Indicator (Red)
Diagnostic Display
(No. of Blocked Beams)
Alignment Indicator (Red)
3. If the green Status and amber Run mode indicators are on, go to the next step. If not, rotate each sensor (one at a
time) left and right until the green Status indicator is on. (As the sensor rotates out of alignment, the red Status
indicator turns on). As more beams are aligned, the Alignment indicators turn from red to green and the number of
blocked beam indicators decreases.
Indicator LEDs
Run Mode Indicator (Yellow)
Status Indicator (Red)
Diagnostic Display
(No. of Blocked Beams)
Alignment Indicator (Green)
4. To optimize alignment and maximize excess gain, slightly loosen the sensor mounting screws and rotate one sensor
left and right, noting the positions in each arc where the Status indicators turn red (blocked condition); repeat with the
other sensor. Center each sensor between those two positions and tighten the mounting screws, making sure to
maintain the positioning as the screws are tightened.
Indicator LEDs
Run Mode Indicator (Yellow)
Status Indicator (Green)
Diagnostic Display
(Dash)
Alignment Indicator (Green)
For situations where alignment is difficult, a LAT-1-SS Laser Alignment Tool can be used to assist or confirm
alignment by providing a visible red dot along the sensor’s optical axis (see
EZ-SCREEN
®
LS Basic Safety Light Curtain
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