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Dwyer Series CS Low Cost Diaphragm Operated Pressure Switch

Visible Setpoint Fixed Deadband

Model CS combines advanced design and precision construction with small size and low price: Unit is ideal for instrument panels, small compressors and general industrial applications. Visible set point and easy to wire SPDT snap switch reduce installation time. Operates in any position and is vibration resistant.

  • Maximum Temperature: -30°F to 150°F
  • Pressure Connection: ¼" NPT
  • Electrical Ratings: SPDT. AC 15A @ 120V. 8A @ 240V; 1/8 HP @ 120V. ¼ HP @ 240V
  • Wiring Connections:3 screw type, common, normally open and normally closed
  • Setpoint Adjustment: Screw type - inside cover
  • Housing: Galvanized steel
  • Diaphragm: Buna-N/Nylon
  • Calibration Spring: Plated Steel
  • Weight: 1/2 lb.
  • Installation: Any position
Model Number Adjustable Operating Range Dead Band Dead Band Value
 CS-1 1-30" Hg Vac (25.4-762 mm Hg) Fixed 1.5" Hg (38 mm Hg)
 CS-3 1-100" w.c. (.25-24.9 kPa) Fixed 7" w.c. (1.74 kPa)
 CS-10 1-10 psig (.07-.69 bar) Fixed 0.4 psig (0.03 bar)
 CS-30 1-30 psig (.07-2.1 bar) Fixed 1.0 psig (0.07 bar)
 CS-150 10-150 psig (.69-10.3 bar) Fixed 5 psig (0.35 bar)
Model Number Adjustable Operating Range Dead Band Dead Band Value
 CD-10 1-10 psig (.07-.69 bar) Adjustable Minimum: 1.5 psig (.1 bar), Maximum: 11.5 psig (.79 bar)
 CD-30 1-30 psig (.07-2.1 bar) Adjustable Minimum: 2 psig (.14 bar), Maximum: 12 psig (.83 bar)
 CD-150 10-150 psig (.69-10.3 bar) Adjustable Minimum: 14 psig (.97 bar), Maximum: 24 psig (1.7 bar)
Pressure switches shall be operated with Buna-N/Nylon reinforced diaphragm. Units shall have fixed deadband. Set point shall be easily adjustable. Set point shall be visible on calibrated scale. Motion of diaphragm shall be transmitted to the switch button via a direct mechanical linkage. Switches shall be Mercoid Model (CS-___).
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