New! - Norman Equipment Co.

SERIES BNS250Coded-Magnet SensorsFeatures & Benefits• Compact size … ideal for limited space applications.• Sealed for submersibility … assures long-term reliabilityin the most hostile environments.• Tamper-resistant … cannot be bypassed with simplemagnets.• Rugged, corrosion-resistant housing … tolerates mostindustrial environments.• Integral LED status indicators … facilitate easyinstallation and provide visual indication of switch status.• Shock and vibration tolerant … designed to withstandmechanical abuse.• Satisfy CE & fail-to-safe requirements … when used withSeries AES safety controllers.DescriptionThe Series BNS250 coded-magnet sensors are designed foruse as a safety interlock switch on movable machineguards/articulating robot arms. Each sensor set consists of amultiple reed switch unit and a coded-magnet actuator. Thereed switches, wired in series, will only close in the presenceof their matched magnetic field array.Both switch and magnet assemblies are sealed to IP67(submersible) standards. Their tamper-resistant designprevents bypassing with a simple magnet or improperly codedmagnetic field. In addition, the BNS module features a 1-meter long prewired pigtail.OperationThe reed switch assembly is typically mounted to a stationaryportion of a guard structure, with the coded-magnet assemblymounted to the movable element of the machine guard. Whenthe guard is closed, and the matched magnetic field alignswith the reed switch unit, the switches will close. When theguard is open, or the required magnetic-field array is notproperly aligned with the reed switch assembly, the sensoroutput will remain “off.”Typical ApplicationsThe sealed, compact BNS250 is ideal for use on movablemachine guards in hostile environments. Typical applicationsinclude food processing equipment, chemical processingequipment, woodworking machinery, packaging machinery,and articulating robot arm rest position sensing.AVAILABLE STANDARD MODELS(Please order BPS250 magnet separately)Part NumberContactConfiguration*DescriptionBNS250-11z 1 NO & 1 NCMultiple reed switch(100VAC/DC) assemblyBNS250-12z 1 NO & 2 NCwith 1-meter prewiredpigtailBNS250-11zG 1 NO & 1 NCMultiple reed switch(24VDC/10mA) assemblyBNS250-12zG 1 NO & 2 NCwith 1 meter prewired pigtailand built-in LED displayBNS250-11zG-2205(side entry cable)1 NO & 1 NCMultiple reed switch(24VDC/10mA) assembly with5 meter pigtail (side entry) andbuilt-in LED displayBPS250 N/A Coded-magnet actuator*Contact configuration in presence of BPS250 coded-magnetactuator.*Important Note: Series BNS Coded-magnet sensors are foruse in safety applications only when used withan electrically-compatible safety controller orsafety PLC. (For recommended compatibleSCHMERSAL safety controllers, please seethe selection chart on Page 159, or call ouroffice for other new, available models.)!USE WITH ANY OTHER SAFETY CONTROLLER MAYDAMAGE SENSOR AND/OR VOID WARRANTY.130