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MN/MA Series High Range Pressure Switch

Brand: Orion Instruments

MN / MA series pressure switches are housed in pressure die cast aluminum powder coated enclosure and are recommended for panel mounting or outdoor service based on the type of enclosure opted for. 

The repeat accuracy is better than ±1% Full ScaleR. A 3/8" cable entry is provided for cables and a terminal strip suitable for wired ends is provided inside the enclosure. 

Pressure port is 1/4" BSPF standard.
Features
  • Compact 
  • Separate chamber for working parts 
  • Wide band adjustable differential in MA series 
  • Choice of wetted parts to suit working media 
  • Electrical rating: 5 A, 250 
  • Vac; 0.2 A, 250 Vdc (res.) 
  • Proof pressure available can be 4 times MWP (optional) 
  • Pressure port: 1/4" BSPF

Specifications

Accuracy

  • ± 1 % of Full Scale Range

Applications

  • Boilers & Compressors
  • Fire Protection Systems
  • Water Treatment

BSP Connection

  • 1/4” BSP Female

Cable Entry

  • Cable Gland (3/8”)

Diaphragm Material

  • Neoprene
  • Teflon

Differential Pressure

  • psi: 0.3 to 36.26 (kPa: 2 to 250, bar, 0.02 to 2.5) - Max.
  • psi: 2.17 to 145 (kPa: 15 to 1,000, bar: 0.15 to 10) Adjustable - mA Series

Electrical Rating

  • 0.2 A at 250 Vdc - Resistive
  • 5 A at 250 Vac

Enclosure, Body Material

  • 316 Stainless Steel
  • Aluminum
  • Brass

Environmental Protection

  • IP54
  • IP65 as Per IS 2147

Operating Pressure

  • psi: 72.52 to 507.63, (kPa: 500 to 3,500, bar: 5 to 35) - Max.

Proof Pressure

  • 4 times Range of, Max.

Set Point - Decreasing

  • bar: 0.067 to 25
  • kPa: 7 to 2,500
  • psi: 0.97 to 362.6

Set Point - Increasing

  • bar: 0.067 to 25
  • kPa: 7 to 2,500
  • psi: 0.97 to 362.6

System Pressure

  • bar: 5 to 35
  • kPa: 500 Too 3,500
  • psi: 72.52 to 507.63
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