Dwyer PG Series offre

Caractéristiques

• Application flexibility is assured by a large variety of switching options including SPST, SPDT, DPST and DPDT; opening or closing on increasing pressure, vacuum or differential
• PR and PRL models add manual reset operation on increasing or decreasing pressure
• Mercury switches or hermetically sealed snap switches are available where high humidity would be a problem
• If vibration or other factors preclude the use of mercury, snap switches can be provided. Standard housing is NEMA 1
• Optional enclosures can be supplied for weather resistant and explosion-proof requirements

Specifications

• Wetted Materials: Fairprene, brass, steel, and aluminum
• Temperature Limits: -10 to 180°F (-23 to 82°C)
• Pressure Limit: Single Pressure Use on High Side: sustained pressure: 15 psig (1.0 bar); surge limit: 20 psig (1.4 bar). Differential Pressure Use: sustained pressure, range P1: 2 psig (.14 bar); sustained pressure, range P2: 10 psig (0.7 bar)
• Enclosure Rating: General purpose. Weatherproof and explosion-proof optional
• Repeatability: ±1% of full range
• Switch Type: See Ordering page
• Electrical Rating: See Datasheet
• Electrical Connections: Screw type
• Conduit Connection: 7/8" (22.23 mm) hole for 1/2" (12.7 mm) conduit hub
• Process Connection: 1/2" male NPT and 1/8" female NPT used for single positive pressure or high differential pressure, 1/8" female NPT used for single vacuum or low differential pressure
• Mounting Orientation: Vertical
• Set Point Adjustment: External screw
• Weight: 4.5 lb (2 kg).