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DETECTION DISTANCE ADJUSTMENTS
1.
Use a white, gray, or black piece of cardboard about 8" × 11" and
hold it as shown in the diagram.
2.
Move the cardboard upward from the floor until it is detected.
3.
Measure the height at which the cardboard was detected. This
will determine the height of the inactive zone (Y distance).
4.
If this height is not between 12" and 16" above the floor or it
does not meet your requirements, an adjustment must be made to the detection distance. See diagram
below for distance adjustment potentiometer location.
Note: Access the potentiometer on the FOCUS 2 by removing the hole plug on the front face.
a. Inactive zone too high: Turn the distance potentiometer
clockwise to increase the detection distance
b. Inactive zone too low: Turn the distance potentiometer
counter-clockwise to decrease the detection distance.
One notch of the distance adjustment corresponds to approximately 4".
5.
Repeat this procedure until the desired distance is achieved.
Steps 6 and 7 apply to the FOCUS only.
6.
Make sure that the door opens completely to ensure that the detector does not trip when there is no
obstacle.
7.
If there is detection, turn the distance adjustment counter-clockwise 1 to 2 notches OR change the lateral
position of the module OR modify the angle adjustment of the lens.
DOES NOT APPLY TO FOCUS 2
INACTIVE ZONE (Y, below)
DISTANCE FROM FLOOR
75.0074.06 FOCUS FOCUS2 20191002
FOCUS ANGLE ADJUSTMENTS
A
B
0°
8"
0
12"
0
16"
0
20"
0
potentiometer
1
0° = B1
2
3
5° = B2
4
5
10° = A2
15° = A3
20° = A4
25° = A5
FOCUS ANGLE
5°
10°
6"
12 1/2"
6"
12"
5 1/2"
11 1/4"
5 1/4"
10 1/2"
FOCUS
CARDBOARD
RX
PCB without housing
15°
20°
19 1/4"
26"
18"
24 1/2"
16 3/4"
23 1/4"
16"
21 1/2"
IR
X
Y
•••••
TX
25°
33 1/4"
31 1/2"
29 1/2"
27 1/2"
Page 3 of 4
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