Model 255 Pulser Discs are constructed of nylon, PVC (255-PVC), aluminum (255-A), or stainless steel (255-SS) and can be used with any of Electro-Sensors Hall-effect or Magneto Resistive Sensors. These discs are designed with magnets of alternating polarity (N-S-N-S) embedded in the face of the disc. The end of the shaft to be monitored is center drilled and tapped and the disc is mounted with a machine screw and lock washer. The magnets serve as targets for Hall-effect sensors, which switch as a result of exposure to the changing magnetic poles. Steel targets can be substituted for magnets on aluminum or PVC discs for use with proximity sensors. Model 255 is a 4" Nylon pulser disc with 16 face mounted magnets. The 255 Pulser Disc is the standard disc for most Electro-Sensors systems. Model 255-PVC is a 4" PVC pulser disc with 16 face mounted magnets. Model 255-A is a 4" aluminum pulser disc with 16 face mounted magnets. Model 255-SS is a 4" stainless steel pulser disc with 16 face mounted magnets.
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