Page 6 of catalogue Optoelectronic sensors of Rechner Industrie-Elektronik GmbH

The Components of the types in size M5 x 0,5 are mounted in stainless steel housings V2A. The models from M12 x 1 upwards are mounted in nickel-plated brass housings. All types are completely filled with casting resin. The rectangular versions have a Crastin housing, Glass-fibre reinforced PBTP (polybuteneterephthalate) fully potted with polyurethane resin. The housing parts are welded via ultrasonics. Wiring of the Infrared sensors should be routed separately from heavy conductor lines or a.c. voltagelines as in extreme cases inductive peak voltages can destroy them despite the integrated protective circuit. The cable length should not exceed 300 m, because long cables cause an increasing capacitive load at the output. Please note: When mounting the Sensors with thread in a threaded bloc the maximum screw-in length has to be considered. Also please take note of the version specific maximum fixing torque. The values are based on the use of the Nuts supplied with the sensors. The possible screwing length, according to DIN 13, and maximum fixing torque are listed in the opposite table.

Thread M 5 x 0.5 M 12 x 1 M 18 x 1

Screw-in length max. 3 mm max. 8 mm max. 8 mm

Torque

max. 1.5 Nm max. 10 Nm max. 20 Nm

Optoelectronic sensors are essential in terotechnology and mechanical engineering for positioning, counting and differentiating different products. Because these sensors operate without any mechanical contact they are virtually wear-free. Under extreme operating conditions, e.g. with aggressive chemical media, we recommend checking the resistance of the housing material.

TECHNICAL TERMS
Series mounting To prevent mutual interference, a minimum distance between the sensors must be observed. This minimum distance depends on their type and is maximum sensitivity specific. Extraneous light Is the light produced by external light sources which impinge on the receiver. Due to the use of modulated light in kHz range the sensors are insensitive to extraneous light, provided the max. extraneous light limit is not exceeded Excess light Is the quantity of the excess radiation power that impinges on the light receiver. The excess light can decrease in course of time, due to dirt on the optic or if the reflection characteristics of the object change. An insufficient amount of excess light is indicated by a LED display.. Brightness control element Preferred for reflection light sensors. When the light is reflected from the object to be detected to the sensor the output transistor is switched through. Reflecting factor Specifies the quantity of impinging light that is reflected from the object. Transmitting range The maximum possible range between reflection light barrier and triple reflector.

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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

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