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75.5255.02 XXXXXXXX
7940-8770 LCN Page 4 of 11
MECHANICAL
ADJUSTMENTS
POWER-UP
PROCEDURES
Once all installation, wiring and cabling procedures have been completed, mechanical adjustments can be made.
Please note that further adjustments may be required after powering and walk testing the detection field.
Aside from placement on the header, the only mechanical adjustment that may be made to the sensor is the angle
adjustment. The Presence Sensor is factory pre-set to the +5º position, but may be reduced to a 0º position or
increased to a 10º position. The greater the angle, the farther from the door the pattern will be. The 0º angle should
only be used when the Presence Sensor is mounted to a BodyMount block or to a soffett above the door that
extends out from the face of the safety side of the door – in this case, the 0º setting would improve the location of
the detection field across the threshold area of the doorway. It is recommended that for most applications, the unit
be powered and walk tested at the pre-set 5º angle. After walk testing, if the detection field needs to be changed,
then proceed with changes to the angle setting as shown below.
1. To change the angle setting the end caps, lenses, and center eye shield must be removed (as shown on page 2).
The terminal block must also be removed if it has been wired. Once removed release the white clips, as shown
below, and rotate outward to remove the PCB as shown in pictures 12 & 13.
2. Once the PCB is completely removed from the housing, the angle position may be changed. There are two clips
per Presence Sensor and the angle must match for each clip on the same PCB. The positions are shown below.
3. Slide the left and right lens back into place and proceed with power-up procedures. Leave the end caps off until all
final adjustments have been made.
1. Upon completion of mechanical and electrical installation, apply 12 to 24 V AC / DC +/- 10% to the Presence
Sensor, with the door in the closed position. The Presence Sensor will flash a green LED at a rate of 2 Hz, then it
will expire upon a successful set-up in the door-closed position.
NOTE
: If applying the Presence Sensor to a door control that requires a learn cycle upon powering, it is
recommended to allow the doors to complete a learn cycle before applying power to the Presence Sensor.
2. Activate the door to the full open position. The Presence Sensor will once again flash the green LED and will
execute a door-open set-up. Upon completion of the set-up for the door-open position, the doors will begin closing.
Normal operation should resume thereafter. Proceed with fine-tuning to insure compliance with all applicable
safety standards (i.e. ANSI A156.10). If set-up is unsuccessful, refer to the Troubleshooting Guide at the end of
this Users Guide, and also to the guide located at the end of the respective lockout User’s Guide.
NOTE
: Always be sure to refer to the applicable lockout User’s Guide for more detailed information.
0°
10°
5°
12 13
14
Factor
y
Default