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Setra Low Differential Pressure Transducer, Model 231

Model 231 Low Differential Pressure Transducer

Brand: Setra Systems, Inc
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Setra’s Model 231 is a multi-configurable, wet-to-wet differential pressure transducer offering the user an all-in-one device with field selectable pressure ranges and Analog outputs.

The device is offered with an optional 3 or 5 valve machined brass manifold for ease of installation and maintenance.

The 231 has a robust, NEMA 4 enclosure with an LCD display and a hinged, captive cover allowing for easy access to switches for adjusting the range and output.
Features
  • 4 Field selectable outputs
  • 8 Field selectable pressure ranges
  • Field accessible push-button zero and remote zero
  • Hinged cover

Specifications

Brand

Accuracy

  • < 0.12 % of Full Scale - Warm-Up Shift
  • ± 1 % of Full Scale RSS

Applications

  • Energy Management Systems
  • Flow Measurement of Various Gases or Liquids
  • Liquid Level Measurement of Pressurized Vessels
  • Pressure Drop Across Filters
  • Process Control Systems

Approvals & Certifications

  • CE
  • RoHS

Burst Pressure

  • 10 x Full Scale or psi: 150 (kPa: 1,034, bar: 10.34)
  • 10 x Full Scale or psi: 75 (kPa: 517, bar: 5.17)
  • 15 x Full Scale or psi: 50 (kPa: 345, bar: 3.45)
  • 8 x Full Scale or psi: 250 (kPa: 1,724, bar: 17.24)

Compensated Temperature

  • 0° to 54° C (32° to 130° F)

Consumption

  • 40 mA Typical at 18-30 Vac
  • 8 mA Typical at 10 Vdc
  • 8 mA Typical at 5 Vdc

Differential Pressure

  • psid: 50 (kPa: 345, bar: 3.45)

Display

  • LCD Display

Electrical Connectors

  • 1/2" Conduit
  • 2-Wire (Reverse Excitation Protected) - Circuit
  • 3-Wire - Circuit

Enclosure, Body Material

  • Brass
  • Powder-Coated

Environmental Protection

  • IP66
  • NEMA 4

Excitation Voltage

  • 15-30 Vdc (Reverse Excitation Protected)
  • 18-30 Vac (Reverse Excitation Protected)

Load

  • 0 to 250 ohms - External Load

Materials of Construction

  • Brass - Manifold Block

Maximum System Pressure

  • psig: 125 (kPa: 861.8, bar: 8.6)

Media

  • Liquids or Gases Compatible with 17-4 PH Stainless Steel

NPT Connection

  • 1/4"-18 NPT
  • 1/8"-18 Female NPT

Operating Temperature

  • -20° to 85° C (-4° to 185° F)

Output

  • 0-10 Vdc
  • 0-5 Vdc
  • 1-5 Vdc
  • 4-20 mA

Output Impedence

  • 30 ohms

Pressure Range

  • bar: 0 to 17.24
  • kPa: 0 to 1,724
  • psid: 0 to 250

Proof Pressure

  • 2 x Full Scale

Response Time

  • 1 to 5 seconds

Rotation

  • 90° ON/OFF - Valve Typical

Shock

  • 200 G

Span & Zero Effect

  • 1.8 % of Full Scale/50° C (100° F) - Span & Zero Shift
  • 2 % of Full Scale/50° C (100° F) - Span & Zero Shift

Storage Temperature

  • -20° to 85° C (-4° to 185° F)

Supply Voltage

  • 24 Vdc

Vibration

  • 10 G at 50 to 2000 Hz

Documentation

Data Sheets

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