A-182
Standard Photoelectric Sensors
Sensitivity Adjustment
Special hints
Recommended adjustment
To assure stable working conditions the green stability LED should
be always turned on.
The green LED displays two stability conditions:
1. Output stable ON (red LED on)
2. Output stable OFF (red LED off)
Best performance can be achieved if the sensing object is located
closer than -10 % of the setting distance or the shiny background is
fixed +10 % behind the switching position.
Item
Position A
Position B and C
Setting
Adjustment
procedure
Place the detected object at the de-
sired location and turn the LIGHT indi-
cator (red) lights. This is position A
Background object
Remove the detected object and turn
the adjustment knob clockwise until the
LIGHT indicator(red) lights. This is the
position B.
Then turn the adjustment knob coun-
terclockwise until the LIGHT indicator
(red) goes out. This is position C.
No Background object
The maximum adjustment setting is
used as position C.
Set the adjustment to halfway between
A and C. Confirm that the STAB indica-
tor (green) remains lit both with the de-
tected object present and not present.
If the STAB indicator does not remain
lit, review the detection method to en-
able stable operation.
Detecting
condition
Status of dis-
tance
setting
knob
Indicators
Photoelectric
sensor
Detected object
A
Photoelectric
sensor
Detected object
C
Background
object
B
A
B
C
A
C
OFF
ON
STABILITY
(green)
LIGHT
(red)
OFF
OFF
STABILITY
(green)
LIGHT
(red)
ON
OFF
STABILITY
(green)
LIGHT
(red)
