AST Pressure SwitchAmerican Sensor Technologies’ (AST) AST46SW Explosion-Proof Pressure Switch offers a single-pull, double-throw configuration with factory-set switch points and hysteresis. Utilizing AST’s Krystal Bond Technology, the one-piece, stainless steel sensing element of the unit is designed to measure pressure in extreme temperature conditions. Standard models are configured with 316L, 17-4 PH, or Inconel 718 materials. With a maximum operating pressure range up to 20,000 PSI (1,378 bar), the AST46SW is designed to maintain high performance with zero signal drift due to an extremely thick and robust sensing diaphragm. Microprocessor technology allows performance over a wide temperature range while advanced electronics result in a compact overall size (1 inch diameter and less than 5 inch overall length). The pressure switch is CSA-approved for use in hazardous areas including Class 1 Div 1 Explosion proof Groups A, B, C and D, and for mining applications, Class 2 Div 1 Groups E, F and G. –