Page 5 of catalogue Optoelectronic sensors of Rechner Industrie-Elektronik GmbH

Adjustment: a) Place the object at the maximum prescribed distance from the light sensor. b) Focus the light beam on the object or the reverse. c. Adjust the sensing distance with the potentiometer so that the output just switches. d) Remove the object. e) Readjust it via the potentiometer, so that the output just switches on the background. f) Finally turn the potentiometer to the middle between the first and second adjustment. When there is no background the potentiometer should be adjusted to maximum distance. Background suppression is not suitable for reflecting surfaces.

Pos.A

Sendingoptic Pos.B

A Object Receiving optic B

Sending diode PSDElement

Fig. 3

Connection diagram

brown (1) white (2) / NC black (4) / NO

Fig. 4

blue (3)

All specifications are subject to change without notice. (05/2006)

Cylindrical and rectangular Sensors with pnp, N.O. (=light on) digital output or with antivalent output (N.O. and N.C.) are available. Other output functions are available on request. Optoelectronic sensors from size M12 x 1 and the rectangular designs have a potentiometer on the side (Fig. 4) for adjusting the sensing range, a yellow LED display for the operating state and a green LED display for “enough excess light” (= ca. 80% of max. sensing range.) The optoelectronic MINI-light switch M5 x 0,5 is equipped with a fixed sensing distance and a yellow LED display. The yellow LED flashes if the excess light is not sufficient. The excess light indicator is a good aid for focusing the sensor on the object and for adjustment. Furthermore unfavourable operating conditions may be recognized on time (e.g. dirty optic).

Mounting in series: To prevent mutual interference, a minimum distance between the sensors has to be taken into consideration according to the following table. Please consider these values as a rough guide only. They are maximum sensitivity specific.

Energetic switch Design M 5 x 0,5 M 12 x 1 M 18 x 1 30 x 30 x 15

Switch with background suppression

minimum distance at the side [mm] 50 150 500 500 50 50

RECHNER Industrie-Elektronik GmbH • Gaußstraße 8-10 • D-68623 Lampertheim • Tel. (0 62 06) 50 07-0 • Fax (0 62 06) 50 07-36 • e-mail: info@rechner-sensors.de • www.rechner-sensors.de

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