Owner's manual

MINI-BEAM
®
Sensors SM2A312CV and SM2A312CV2
page 2
MINI-BEAM Installation and Alignment
Proper operation of the SM2A312CV or SM2A312CV2 sensor requires that
it be mounted securely and aligned properly. In some applications,
excessive movement or vibration can result in intermittent or false
operation caused by loss of alignment. For best results, final-mount the
sensor in an 18mm-hole by its threaded barrel or use a mounting bracket
(see page 6).
Begin with the sensor at the approximate position where it will be
mounted. With power applied to the circuit and with the sensor set for
“light operate”, direct the sensor’s visible red spot at the object
approximately 16 mm (0.65 in) (for model SM2A312CV) or 43 mm (1.7
in) (for model SM2A312CV2) directly in front of the lens. Move the sensor
very slightly toward or away from the object while observing the red LED
indicator on the back of the sensor. Note the near and far points at which
sensing occurs (the range of distance over which the LED remains lit).
Mount the sensor at a point approximately midway in the range. This
should correspond to the point at which the red sensing spot on the object
appears most sharply defined. Mount the sensor at this position and
distance.
15 Turn
Gain
Adjustment
and Light/Dark
Operate Switch*
Gasketed
Acrylic Cover
Red LED lights when the
sensor's output is conducting
Low Reflectivity Bac
kground
Up
Down
Left
Right
SM2A312CV
or
SM2A312CV2
Object
* Note regarding Light/Dark operate switch:
• 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)
Distance from Sensor lens to object:
16 mm (0.65 in) for SM2A312CV
43 mm (1.7 in) for SM2A312CV2
CONVERGENT MODE ALIGNMENT
SM2A312CV OR CV2