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WIKA: Introduces the Mechanical Pressure Gauge with Overload Indicator Option

posted Mar 10, 2010, 7:04 PM by RCLL Admin   [ updated Jul 13, 2011, 2:52 AM ]

    WIKA has developed a revolutionary overload indicator located on the dial face for easy viewing showing when the gauge has been pressurized past a user defined predetermined value. The overload indicator normally rests in a green band, showing normal operation. When the pressure rises above 10% of the set pressure, the indicator drops into a red band showing the pressure has exceeded the predetermined set point and needs to be inspected.

    A unique feature of the over-pressure indicator is that it can be set anywhere on the dial. The overpressure set point will be shown with a bold red marker on the dial face to indicate the desired set pressure.



    The overload indicator does not prevent operation of the gauge, even when activated. For safety reasons the overload indicator cannot be reset in the field. When the indicator drops into the red band, it locks in place. The bayonet ring is also spot welded to the case to prevent tampering with the overload indicator. The overload indicator can only be reset after the gauge has been evaluated by the factory or a qualified calibration laboratory.

The overload indicator:

  • Is primarily used in applications where customers are concerned about overpressure conditions that may affect the performance and calibration of the instrument.
  • Is also useful in companies and industries that must adhere to strict quality control standards.
  • Allows inspectors to quickly identify problem instruments and have the installation investigated to determine reasons for the overload indication.
  • Is especially useful in critical applications that must maintain operation of the instrument to exacting specifications.