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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
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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