Industrial Technologies

division of BIOLAB 

IMI Industrial Monitoring Instrumentation

Model 685A01 - Solid-State, Electronic Vibration Switch

 

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  • Initiates Alarm or Shutdown Due to Excessive Vibration

  • Detects Machinery Imbalance, Misalignment, Worn Bearings, and Gear Faults

  • Explosion-proof Enclosure Mounts Directly to Machinery

  • 5-amp, Form C Relay with Selectable Latching or Non-latching Action

  • Time Delay for Eliminating False Trips During Upsets, Startup, or Rundown

  • Ideal for Fans, Engines, Compressors, Pumps, and Other Critical Equipment

The Model 685A01 vibration switch is specifically designed to alarm when vibration levels increase beyond a predetermined limit. Appropriate action, such as further analysis, scheduled maintenance, or machinery shutdown, can then be taken.  The 685A01 is DC-powered and includes an on-board piezoelectric accelerometer, which produces an electrical signal that is proportional to measured vibration. The amplitude of this signal is compared with a user-adjustable set point, which —when exceeded— will trip a 5-amp, Form C relay. A time delay circuit safeguards against false alarms that could occur during momentary upsets.

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