Industrial Controller
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Infinite Innovation, the Future of Industrial Control Systems
Infinite Innovation, the Future of Industrial Control Systems
PRODUCT POSITION:HOMEPRODUCT—FISHER™ TYPE 92W
FISHER™ TYPE 92W
Key Parameters Category Parameter Name Description & Typical Values General Specifications Type Pneumatic, Force-Balance Relay Functions Reversing, Direct, Averaging, High/Low Select, Amplifying, Bias (with external pilots). Pressure Ratings Air Supply Pressure 3 to 30 psig (0.2 to 2.1 bar). Must be at least 1-2 psi above the maximum required output. Input & Output Signal Range Typically 3 to 15 psig (0.2 to 1.0 bar) or 3 to 27 psig (0.2 to 1.9 bar). Maximum Output Pressure Can be up to the supply pressure. Performance Accuracy Typically ±0.5% of output span. Sensitivity Very high, typically a small fraction of 1% of the input span. Air Consumption (Static) Very low when output is stable (only pilot flow). Air Flow Capacity (Dynamic) High. Significantly higher than a standard controller output, up to several SCFM. Physical & Environmental Case Material Aluminum or Cast Iron. Mounting Panel Mount (standard) or Pipe Mount. Connections 1/4" NPT for input, output, and supply ports. Temperature Limits -20°F to 180°F (-29°C to 82°C).
DESCRIBE
The Fisher Type 92 is a versatile, force-balance type pneumatic relay used as a computing and amplifying device in pneumatic control systems. It performs various functions such as signal reversing, signal averaging, signal selecting (high or low select), and amplification of low-volume signals. It is a fundamental building block in traditional pneumatic instrumentation and is known for its reliability and simplicity.
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