Page 7 of catalogue Magneto resistive sensors of Rechner Industrie-Elektronik GmbH

TECHNICAL TERMS
nless otherwise specified technical data is as follows: +24° C, B = 24 V DC. Operating sensing distance / Sa Within the operating sensing distance the sensor operates reliably taking in to account all the possible tolerances. It lies between 0 and 0.81 x Sn. Power up time delay The time the sensor needs to be ready for operation after connecting the operating voltage. It is in the milliseconds range. Housing materials The application of the housing materials used is based on the technical specifications of the material and of the manufacturer. The customer is responsible for checking in each case that the housing material is suitable for the application, even though RECHNER Sensors have far-reaching application experience concerning the use of different housing materials. Cable For the standard models PVC- or PR-cable are used. one has to take into consideration that the cable should not be moved with ambient temperatures below –5° C. PVC is not suitable for use in applications with oil-based liquids or with V-radiation. PR is not suitable for continuous contact with water. For special application areas silicone or PTFE cables are available. Nominal sensing distance / Sn The characteristic value of a sensor, without consideration of production tolerances and variations due to temperature and voltages. Reference gearwheel module 4, 1000 Hz. Real sensing distance / Sr The sensing distance determined at +20° C and rated voltage. Here the series variance is taken into consideration. Variation max. + 10 %. Series- and parallel connection It is possible to connect the sensors in series or parallel. When considering this it must be taken into account that the voltage drops are added for series connection and the residual voltages for parallel connection. nder these circumstances it is advisable to operate a maximum of three sensors in a corresponding circuit. Frequency of operating cycles The maximum damping and un-damping cycles of the proximity sensor within one second. To ascertain the frequency of operating cycles a pulse / break ratio of 1 : 2 is used as a basis. Enclosure rating IP 65: Protection against contact with voltage-carrying parts, protection against ingress of dust and water jet. IP 67: Protection against contact with voltage-carrying parts, protection against ingress of durst and protection against ingress of water when the equipment is immersed in water, up to 1 m depths and for a period of 30 minutes. Temperature variation The displacement of the switching point if the ambient temperature changes. This is with MRS less then + 10 %. Modul Diameter of a gearwheel in relation to the number of teeth. M = D : T

All specifications are subject to change without notice. (07/2008)

RECHNER Industrie-Elektronik GmbH • Gaußstraße 8-10 • D-6863 Lampertheim • Tel. (0 6 06) 50 07-0 • Fax (0 6 06) 50 07-36 • e-mail: info@rechner-sensors.de • www.rechner-sensors.com

7