Rotational speed sensor DSD12/4309KS3GD

magneticexplosion-proofIP67

Speed sensors with integrated control function • 3-wire - d.c. • ATEX certified II 3GD for zone 2;22 • Connector output M12 x 1 • General features: These sensors enable the control with extremely high precision the rotation of a toothed wheel or reference marks, switching off the load or giving an alarm in case the speed falls below the minimum threshold. Thanks to the extremely wide measuring range they can be even used to control repetitive operations, signalling in case of unwanted stops. Further delays or other special functions may be implemented upon specific request. The output is protected against wrong connection, overvoltages on line, and short circuit of the load. The connection is with a 4-wire M12x1 connector which must be ordered separately. Technical data: • Working voltage: 10 ÷ 30 Vdc • Max ripple: 10% • No-load supply current: <15 mA • Rated operational current (Ie): 100 mA • Voltage drop: < 1,5 V • Switching hysteresis (H): <10% Sn • Repeat accuracy (R ): < 2% Sn • Maximum detectable interval (between two pulses): 2 min • Detectable start-up time (T1): 0 ÷1 min (default 2 sec.) • Temperature range: - 25° ÷ + 60°C • Max thermal drift of sensing distance Sn: ±10% • Degree of protection: IP67 • Status indicator: yellow LED = out ON; frequency over the threshold • Marking: II 3D Ex tc IIIC T80°C IP67 X II 3G Ex nAc IIC T6 X • Protected against short-circuit and overload • Electromagnetic compatibility (EMC) according to EN60947-5-2 • According to: EN60079-0/EN60079-15/EN60079-31 • Shock and vibration resistance according to EN60068-2-27/EN60068-2-6 Use in hazardous area according to instruction manuals