UC-300L BANNER ENGINEERING, UC-300L Datasheet - Page 2

• Manufacturer Part Number: UC-300L
• Description: Replacement Lens
• Manufacturer: BANNER ENGINEERING

Specifications of UC-300L

• For Use With: SM2A312D Series Sensor

MINI-BEAM
Proper operation of the SM2A312D sensor requires that it be mounted securely and
aligned properly. Excessive movement or vibration can result in intermittent or false
operation caused by loss of alignment. For best results, final-mount the SM2A312D in an
18mm-hole by its threaded barrel or use a mounting bracket (see page 6).
1) Begin with the sensor at the desired distance from the object to be sensed, and at the
2) Switch the sensor to light-operate mode. With the object in the sensing position,
3) Repeat the alignment motions after each GAIN reduction. When you are satisfied that
* Note regarding Light/Dark operate switch:
page
• Turn switch fully clockwise for light operate (sensor outputs conduct when object is present)
• Turn switch fully counterclockwise for dark operate (sensor outputs conduct when object is absent)
2
approximate position where it will be mounted. The background should be as far
behind the object as possible (at least three times the distance of the sensor from the
object), and as dark a color as possible compared to the object. Ideally, the object
should present its largest reflective surface to the sensor.
apply power to the sensor, and advance the 15-turn GAIN control to maximum
(clockwise end of rotation). The GAIN control is clutched at both ends to avoid
damage, and will “free-wheel” when either endpoint is reached.
If the sensor is “seeing” its reflected light, the alignment LED should be “on”. Move
the sensor up-down-right-left (include angular rotation) to find the center of
movement zone within which the LED remains lit. Reducing the GAIN setting (if
necessary) will reduce the size of the movement zone and make more precise
alignment possible.
you have obtained optimum alignment, mount the sensor solidly in that position.
Increase the GAIN to maximum. Test the system by removing the object from the
sensing position. The receiver LED indicator should go “off”. If the LED indicator does
not go “off”, the sensor is reacting to light reflected from a background surface.
Reduce the GAIN setting until the alignment indicator goes “off”, plus two additional
full turns. Again place the object in the sensing position. If the alignment indicator
does not come “on”, the sensor is receiving as much or more light energy from the
background as from the object. Consider the following alternatives:
a) move the sensor closer to the object and reduce the sensitivity (GAIN);
b) reduce background reflectivity by painting the background with flat-black
c) tilt the sensor or the background so that the sensing beam is not
paint, or by scuffing the background or cutting a hole through it;
perpendicular to the background.
®
Sensors
SM2A312D
MINI-BEAM Installation and Alignment
sensor's output is conducting
O b
Diffuse Mode Alignment
Red LED lights when the
j e c
t
SM2A312D
SM2A312D
15 Turn
Gain
Adjustment
and Light/Dark
Operate Switch*
Gasketed
Acrylic Cover
L e
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