Model T5400 Digital-Pneumatic Transducer

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The Fairchild T5400 is a digital-pneumatic device that provides a pneumatic output signal controlled by 8-bit digital data instructions from a central control room, a remote control location, or a local control station. It features a fail safe high or low, which will return the 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.


  • Fail Safe High or Low will return the 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
  • Field Reversible Feature provides output which is directly or inversely proportional to the input signal.
  • 115 VAC, 230 VAC, and 24 VDC Power Options permit use with most power sources.
  • Temperature Compensation provides stable operation during temperature changes.
  • 5VDC or 15VDC Logic assures compatibility with most digital input systems.
  • Vibration Resistance maintains set points, under adverse vibration conditions.
  • Various Mounting Configurations allow installation flexibility for most applications.
  • External Zero Adjustment provided for ease of calibration.

Output Range
3-15 psig, [0.2-1.0 BAR], (20-100 kPa)
Supply Pressure
20 ± 2 psig, [1.5 ± 0.15 BAR] (150 ± 15 kPa)
Air Consumption (SCFM)
0.16 (0.27 m³/HR) Maximum
Output Capacity
0.15 (0.26 m³/HF) Maximum
Voltage Requirement
115/230 VAC ± 10% 50-60 Hz
24 VDC ± 10%
Input Data1
8 Bit Parallel, 1 Bit Enable (TTL or CMOS compatible)
Terminal Based Linearity
± 0.50% Full Scale
Independent Linearity
± 0.25% Full Scale
0.4% of Span
within 0.2% Full Scale
within 0.2% Full Scale
Supply Pressure Effect
1% of Span for a 2 psig [0.14 BAR], (14 kPa) supply change.
Sinking Current
5 VDC Logic 0.5 mA per Bit
15 VDC Logic 1.5 mA per Bit
Ambient Temperature
-40°F to +150°F (-40°C to +65.5°C)
Materials of Construction
Body and Housing: Aluminum
Ball and Orifice: Sapphire
Nozzle: Stainless Steel

1Data must be on line 0.5 microseconds before enable strobe and 0.5 microseconds during enable period to start output pressure change.

Catalogue PDF: application/pdf
Operational PDF: application/pdf
Located in: Transducers

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