Pressure gauges with electric contacts

Pressure gauges with electric contacts, also known as pressure switches or pressure transducers, are devices used to measure and monitor pressure levels in various systems and processes. These gauges incorporate electrical contacts that are actuated by changes in pressure, allowing them to trigger electrical signals or control actions based on preset pressure thresholds.

Here’s how they typically work:

  1. Pressure Sensing: Pressure gauges with electric contacts have a sensing element that responds to changes in pressure. This element could be a diaphragm, bourdon tube, or another type of sensor depending on the application.

  2. Electrical Contacts: These gauges have one or more electrical contacts integrated into their design. These contacts are typically made of conductive materials and are positioned to be actuated by the movement of the sensing element in response to pressure changes.

  3. Threshold Setting: Users can adjust the pressure thresholds at which the electrical contacts are activated. This is often done by manually setting the pressure switch to a specific value using dials, knobs, or digital interfaces.

  4. Control Action: When the pressure reaches the preset threshold, the electrical contacts are actuated, completing or interrupting an electrical circuit. This action can trigger various responses such as turning on/off pumps, activating alarms, or initiating safety shutdown procedures in industrial processes.

  5. Feedback and Monitoring: Pressure switches with electric contacts can provide real-time feedback on pressure conditions, allowing operators to monitor and control pressure levels within desired parameters.

These gauges find applications in various industries such as manufacturing, oil and gas, automotive, aerospace, and HVAC systems, among others. They are essential for maintaining safety, efficiency, and reliability in processes where pressure control is critical.

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