Model 124 Piston Type Differential Pressure Gauge & Switch

Brand: Mid-West Instrument

The Model 124 DP gauge is available with one or two hermetically sealed reed switches or 4-20 mA transmitter depending on model. 

The switches are adjustable within a defined percentage of the full scale range of the gauge and are available in SPDT and SPST, normally open or normally closed configurations for various load power ratings. 

The switches can be set to activate or deactivate on rising or falling pressure.
Features
  • Simple, rugged, compact design
  • Working pressure up to 10,000 psiG (690 bar)
  • Over-range protection to maximum pressure
  • Body materials: 316L Stainless Steel with 316 stainless steel internals
  • Weather-resistant construction standard
  • Shatter resistant acrylic lens
  • Variety of Dial type and Sizes: 2-1/2”, 3-1/2” & 4-1/2”
  • Available DP Ranges: Inches H2O, psiD, bar, and kPa
  • ¼" Female NPT & ½" Female NPT Process Connections
  • Multiple mounting options available
  • Temperature Limits: -40° to 200°F (-40° to 93°C)
  • Transmitter Option: -20° to 150°F (-28° to 65°C)

Specifications

Approvals & Certifications

  • CE
  • CSA (C,US)
  • UL (C,US)

Diaphragm Material

  • Buna-N
  • Ethylene Propylene (EPR)
  • Viton

Enclosure, Body Material

  • 316L Stainless Steel

Environmental Protection

  • IP65
  • IP66
  • NEMA 4X

NACE & NIST

  • NACE MR-0175

NPT Connection

  • 1/2” NPT Female
  • 1/4” NPT Female

Output

  • 4-20 mA

Pressure Type

  • Differential

Set Point - Decreasing

  • bar: 0 to 27.58
  • kPa: 0 to 2,758
  • psid: 0 to 400

Set Point - Increasing

  • bar: 0 to 27.58
  • kPa: 0 to 2,758
  • psid: 0 to 400

Switch Type

  • SPDT 3 W, 125 Vac/dc, 0.25 A, 60 W, 240 Vac/dc, 1 A
  • SPST 60 W, 240 Vac/dc, 3 A

System Pressure

  • bar: 0 to 690
  • kPa: 0 to 69,000
  • psig, 0 to 10,000

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