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Model T5420 Digital-Pneumatic Transducer

Brand: Fairchild Industrial Products
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The Rotork Fairchild T5420 is a Digital-Pneumatic Transducer, compatible with most digital systems using TTL and CMOS Logic.

Its Fail Safe High or Low will return the field reversible output to 3 psig for Direct Acting Mode or to 15 psig for Reverse Acting Mode if the power is lost, regardless of the logic selected.

The Integral Volume Booster Output of the T5420 provides a flow capacity of 45 SCFM (76.5 m3/Hr), to meet input requirements of final control elements requiring a higher capability output signal, increased output pressure, and/or increased flows.
Features
  • Uses common 8 bit data instructions
  • Fail safe High or Low
  • Field Reversible Feature
  • Integrated Volume Booster Output
  • Vibration resistance
  • Various Mounting Configurations
  • External Zero Adjustment
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The Rotork Fairchild T5420 is a Digital-Pneumatic Transducer, compatible with most digital systems using TTL and CMOS Logic.

Its Fail Safe High or Low will return the field reversible output to 3 psig for Direct Acting Mode or to 15 psig for Reverse Acting Mode if the power is lost, regardless of the logic selected.

The Integral Volume Booster Output of the T5420 provides a flow capacity of 45 SCFM (76.5 m3/Hr), to meet input requirements of final control elements requiring a higher capability output signal, increased output pressure, and/or increased flows.
Features
  • Uses common 8 bit data instructions
  • Fail safe High or Low
  • Field Reversible Feature
  • Integrated Volume Booster Output
  • Vibration resistance
  • Various Mounting Configurations
  • External Zero Adjustment
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Specifications

Brand

Air Consumption

  • 0.16 scfm (0.27 m³/hour) - Max.

Ambient Temperature Range

  • 0° to 65.5° C (32° to 150° F)

Ball Material

  • Brass
  • Sapphire

Conduit Connection

  • 1/2” NPT

Enclosure, Body Material

  • Aluminum

Flow Capacity

  • 15 scfm (25.5 m³/hour) - Max.
  • 45 scfm (76.5 m³/hour) at psig: 100 (kPa: 700, bar: 7)

Hysteresis

  • Within 0.1 % of Full Scale

Independent Linearity

  • + 0.25 % of Full Scale

Mounting

  • Bracket Kit

NPT Inlet

  • 1/4” NPT Female

NPT Outlet

  • 1/4” NPT Female

Orifice Material

  • Brass
  • Sapphire

Power

  • 115 Vdc - 3 Watts
  • 230 Vdc - 3 Watts
  • 24 Vdc - 3 Watts

Pressure Range

  • bar: 0.2 to 6.2
  • kPa: 20 to 620
  • psig: 3 to 90

Pressure Type

  • Gauge

Ratio

  • 1:1
  • 1:2
  • 1:3
  • 1:4
  • 1:5
  • 1:6

Repeatability

  • Within 0.1 % of Full Scale

Resolution

  • 0.4 % of Span

Supply Pressure

  • psig: 20 + 2 (kPa: 150 + 15, bar: 1.5 + 0.15)

Supply Pressure Effect

  • 1 % of Span for psig: 2 (kPa: 14, bar: 0.14) Supply Change
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